Superluminescent Diode (SLD) Light Sources for OCT Systems


  • SLDs Optimized for Use in OCT Systems
  • Center Wavelengths from 770 nm to 1610 nm
  • Fiber-Coupled Power: ≥3 mW
  • SM or PM Fiber Pigtail with FC/APC Connector

SLD1325

1325 nm SLD, >100 nm Bandwidth
30 dB (Min) Optical Isolation

An Image of the Anterior of the Eye Taken with the SLD830S-A10 in a Modified Ganymede ll OCT System

SLD830S-A10

830 nm SLD, Gain Ripple: ≤0.15 dB

Related Items


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SLD for OCT
Click to Enlarge
The SLD1325 Superluminescent Diode Mounted in a CLD1015 Compact Laser Diode Driver with TEC
Quick Links
770 nm (SM)
810 nm (SM)
830 nm (SM)
840 nm (SM or PM)
850 nm (SM)
880 nm (SM)
920 nm (SM or PM)
930 nm (SM or PM)
970 nm (SM or PM)
1050 nm (SM or PM)
1220 nm (SM or PM)
1310 nm (SM)
1315 nm (SM or PM)
1325 nm (SM or PM)
1400 nm (SM or PM)
1450 nm (SM or PM)
1610 nm (SM or PM)

Features

  • SLDs Optimized for Use in Spectral Domain OCT Systems
  • 770 nm to 1610 nm Center Wavelengths (See Quick Links Table to the Right)
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback
  • Integrated TEC and Thermistor for Temperature Control
  • Hermetically Sealed 14-Pin Butterfly Package
  • 1220 nm, 1315 nm, 1325 nm, and 1400 nm Center Wavelength (CWL) SLDs Available from Stock with Integrated Optical Isolator

Superluminescent Diodes (SLDs) are the light source of choice in Spectral Domain Optical Coherence Tomography (SD-OCT) imaging. The broad spectrum and short coherence length of the emitted light improve the depth resolution in OCT images. Thorlabs offers SLDs designed for OCT applications with center wavelengths from 770 nm to 1610 nm (see the Quick Links table to the right). Each SLD is shipped with an individualized product data sheet, which includes information on the spectrum and operating parameters of the device. Raw test data for each SLD is also available upon request; please contact Tech Support with inquiries. For more details about each SLD, please see the Specs tab.

These devices are built into 14-pin butterfly packages, each with an integrated thermoelectric cooler (TEC) and thermistor to ensure output stability. The output is coupled into either an SM or PM fiber terminated with a 2.0 mm narrow key FC/APC connector. Please note that optical feedback can diminish the output power or damage the SLD. We do not recommend using these SLDs with components that are prone to back reflections, such as FC/PC connectors. The SLD1220x, SLD1310x, SLD1325, SLD1330x, and SLD1410x superluminescent diodes incorporate an integrated optical isolator. If you are interested in an SLD at a different wavelength with an integrated isolator, please contact Tech Support with inquiries.

Thorlabs is able to provide low-ripple SLDs with custom wavelengths or higher power diodes. Please note that the engineering design and wafer manufacturing costs involved make the purchase of low quantities very costly. For a quote on custom SLDs, please contact Tech Support.

The SLDs featured on this page have either a near-Gaussian or flat-top optical spectrum. The calculation for the center wavelength differs with these two spectral shapes. Please see the Specs tab for center wavelength calculations.

For additional wavelengths and devices not optimized for OCT, see our full selection of superluminescent diodes.

Operation Guidelines
We strongly recommend adherence to the operating conditions marked on each package. While optimal performance is achieved by utilizing the recommended settings, we recognize users can adjust the spectral characteristics of the SLD by deviating from these recommended settings. For instance, operating at lower temperatures will cause a shift of the central wavelength to shorter wavelengths. It is imperative, however, that as the temperature is reduced, the injection current is also reduced so as not to exceed the recommended output power if one is noted on the data sheet that is included with the SLD.

These SLDs should be operated at a constant current and temperature, which is relatively simple with the proper SLD mount and drivers. To mount and drive these SLDs, Thorlabs recommends using a ITC4000 Series Laser Diode Driver with the LM14S2 Mount. For applications where lower noise is desirable, the CLD1015 Compact Laser Diode Driver with TEC is available as a standalone laser driver and temperature controller.

As with most active semiconductor devices, standard anti-static handling procedures must be adhered to in order to prevent an electrical discharge that could destroy the device.

OCT Application Images

OCT Image at 830 nm
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830 nm OCT Image
Click to Enlarge
830 nm OCT Image
Click to Enlarge
Images of (a) the lens, (b) the anterior, and (c) the retina of the eye obtained using a Ganymede™ SD-OCT System modified to integrate an
SLD830S-A10 (sold below) as a light source. The images each have an in-tissue depth of 6.2 mm and were taken using a 36 kHz A-scan rate.
Due to the nature of producing superluminescent diodes with ultra wide bandwidths, some of the SLDs sold below have spectral shapes that are near gaussian, while others have a shape with a flattened top. This difference in spectral shape demands two different methods of defining center wavelength in order to provide an accurate description of the diode.

Near-Guassian Center Wavelength Definition
The center wavelength for devices with a near-gaussian spectral shape is defined by an average weighted by the relative amplitude and may not correspond to peak power or the FWHM center wavelength due to the variability of the spectrum shape. For a given Optical Spectrum Analyzer (OSA) trace:

Weighted Average

where

  • CW is the Specified Center Wavelength
  • Xi is the Wavelength of a Trace Data Point
  • Yi is the Amplitude of a Trace Data Point

Flat-Top Center Wavelength Definition
The center wavelength for devices with a flat-top spectral shape is defined by the midpoint between the two wavelengths located at 3 dB below the maximum intensity point on the spectrum. For a given OSA trace:

Weighted Average

where

  • CW is the Specified Center Wavelength
  • XR_3dB is the Right Wavelength Edge of the 3 dB Bandwidth
  • XL_3dB is the Left Wavelength Edge of the 3 dB Bandwidth

 

SLD Specifications

Note that these specifications are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note: the ASE Power specification is the output from the fiber pigtail.

770 nm CWL Superluminescent Diode

Item # SLD770S
Parametera Min Typ. Max
Center Wavelength (CWL)b 760 nm 770 nm 780 nm
Spectral Shape Near Gaussian
Operating Current - - 170 mA
ASE Powerc 4.5 mW 5.5 mW -
Optical 3 dB Bandwidthc,d 15 nm 18 nm -
RMS Gain Ripplec - 0.01 dB 0.3 dB
Forward Voltagec - 1.95 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.11 A 1.4 A
TEC Voltage - 0.16 V 4.0 V
Thermistor Resistance - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplec,e
Absolute Maximum Ratingsa
Absolute Max Current 170 mA
Operating Case Temperature 0 to 70 °C
Storage Temperature -10 to 70 °C
Pin Code 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP
Numerical Aperture 0.13
Core Diameter 4.4 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm
Fiber Length 1.5 m
Connector FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The center wavelength for an SLD with a near-Gaussian spectral shape is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the definitions above for details.
  • At Operating Current
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm

810 nm CWL Superluminescent Diode

Item # SLD810S
Parametera Min Typical Max
Center Wavelength (CWL)b 795 nm 810 nm 825 nm
Spectral Shape Near Gaussian
Operating Current - - 270 mA
ASE Powerc 13 mW 15 mW -
Optical 3 dB Bandwidthc,d 25 nm 30 nm -
RMS Gain Ripplec,e - 0.03 dB 0.15 dB
Forward Voltage - 2.1 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.2 A 1.4 A
TEC Voltage - 0.3 V 6.0 V
Thermistor Resistance - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum
LIV Plot LIV Curves
Gain Ripplec,e
Absolute Maximum Ratingsa
Absolute Max Current 290 mA
Operating Case Temperature 0 to 70 °C
Storage Temperature -10 to 70 °C
Pin Code 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP
Numerical Aperture 0.13
Core Diameter 4.4 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm
Fiber Length 1.5 m
Connector FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The center wavelength for an SLD with a near-Gaussian spectral shape is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the definitions above for details.
  • At Operating Current
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm

830 nm CWL Superluminescent Diodes

Item # SLD830S-A10W SLD830S-A20W SLD830S-A10 SLD830S-A20
Parametera Min Typical Max Min Typical Max Min Typical Max Min Typical Max
Center Wavelength (CWL)b 815 nm 830 nm 845 nm 815 nm 830 nm 845 nm 820 nm 830 nm 840 nm 820 nm 830 nm 840 nm
Spectral Shape Flat Top Flat Top Near Gaussian Near Gaussian
Operating Current - - 240 mA - - 330 mA - - 150 mA - - 240 mA
ASE Powerc,d 10 mW - - 20 mW - - 10 mW 13 mW - 20 mW 22 mW -
Optical 3 dB Bandwidthc,e 50 nm 60 nm - 40 nm 55 nm - 17 nm 20 nm - 17 nm 20 nm -
Optical 20 dB Bandwidthc - - - - - - - 50 nm - - 50 nm -
RMS Gain Ripplec,f - 0.06 dB 0.3 dB - 0.03 dB 0.3 dB - 0.03 dB 0.15 dB - 0.03 dB 0.15 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V - 2.0 V 2.5 V - 2.0 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.14 A 1.4 A - 0.14 A 1.4 A - 0.1 A 1.5 A - 0.1 A 1.5 A
TEC Voltage - 0.18 V 6.0 V - 0.18 V 6.0 V - 0.13 V 4.0 V - 0.13 V 4.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ - - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum Optical Spectrum
LIV Plot LIV Curves LIV Curves
Gain Ripplef
Absolute Maximum Ratingsa
Absolute Max Current 240 mA 330 mA 150 mA 240 mA
Operating Case Temperature 0 to 70 °C
Storage Temperature -10 to 70 °C
Pin Code 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP
Numerical Aperture 0.13
Core Diameter 4.4 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm
Fiber Length 1.5 m
Connector FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The center wavelength for an SLD with a flat-top spectral shape is defined as the midpoint of the 3 dB bandwidth; for an SLD with a near-gaussian spectral shape, the center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the definitions above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • For SLD830S-A10W and SLD830S-A20W: At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm

840 nm CWL Superluminescent Diodes

Item # SLD840 SLD840P
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 820 nm 840 nm 860 nm 820 nm 840 nm 860 nm
Spectral Shape Flat Top Flat Top
Operating Current - 140 mA 180 mA - 140 mA 180 mA
ASE Powerc,d 3 mW 4 mW - 3 mW 4 mW -
Optical 3 dB Bandwidthc,d,e 60 nm 70 nm - 60 nm 70 nm -
RMS Gain Ripplec,f - 0.01 dB 0.1 dB - 0.01 dB 0.1 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V
Polarization Extinction Ratio (PER) - - - - 16 dB -
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.1 A 1.5 A - 0.1 A 1.5 A
TEC Voltage - 0.15 V 4.0 V - 0.15 V 4.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Steinhart-Hart Coefficients C1 = 1.1291x10-3, C2 = 2.3413x10-4, and C3 = 0.8767x10-7
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplef
Absolute Maximum Ratingsg
Absolute Max Current 180 mA 180 mA
Operating Case Temperature 0 to 70 °C 0 to 70 °C
Storage Temperature -10 to 70 °C -10 to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP PM780-HPh
Numerical Aperture 0.13 0.12
Core Diameter 4.4 µm 4.5 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm 5.3 ± 1.0 µm @ 850 nm
Fiber Length 1.5 m 1.5 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Values are given for CW operation with TCHIP = 15 to 30 °C and TCASE = 0 to 70 °C.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • Specification given at operating current. 
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm
  • Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The connector key is aligned to the slow axis of the PM fiber.

850 nm CWL Superluminescent Diodes

Item # SLD850S-A10W SLD850S-A20W
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 835 nm 850 nm 865 nm 835 nm 850 nm 865 nm
Spectral Shape Flat Top Flat Top
Operating Current - - 180 mA - - 340 mA
ASE Powerc,d 10 mW - - 20 mW - -
Optical 3 dB Bandwidthc,d 40 nm 60 nm - 40 nm 55 nm -
RMS Gain Ripplec,e - 0.03 dB 0.3 dB - 0.03 dB 0.3 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.11 A 1.4 A - 0.18 A 1.4 A
TEC Voltage - 0.17 V 6.0 V - 0.27 V 6.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 180 mA 340 mA
Operating Case Temperature 0 to 70 °C
Storage Temperature -10 to 70 °C
Pin Code 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP
Numerical Aperture 0.13
Core Diameter 4.4 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm
Fiber Length 1.5 m
Connector FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • Specification given at operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm

880 nm CWL Superluminescent Diodes

Item # SLD880S-A7 SLD880S-A25
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 860 nm 880 nm 900 nm 860 nm 880 nm 900 nm
Spectral Shape Flat Top Flat Top
Operating Current - - 225 mA - - 410 mA
ASE Powerc,d 6 mW 7 mW - 23 mW 25 mW -
Optical 3 dB Bandwidthc 35 nm 40 nm - 35 nm 40 nm -
Optical 20 dB Bandwidthc - 80 nm - - 80 nm -
RMS Gain Ripplec,e - 0.06 dB 0.3 dB - 0.06 dB 0.3 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.2 A 1.4 A - 0.2 A 1.4 A
TEC Voltage - 0.8 V 6.0 V - 0.8 V 6.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum Optical Spectrum
LIV Plot LIV Curves LIV Curves
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 225 mA 410 mA
Operating Case Temperature 0 to 70 °C
Storage Temperature -10 to 70 °C
Pin Code 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP
Numerical Aperture 0.13
Core Diameter 4.4 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm
Fiber Length 1.0 ± 0.05 m 1.5 ± 0.05 m
Connector FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • Specification given at operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm

920 nm CWL Superluminescent Diodes

Item # SLD920S SLD920P
Parametera Min Typical Max Min Typical Max
Operating Current - - 420 mA - - 420 mA
Center Wavelength (CWL)b 895 nm 920 nm 945 nm 895 nm 920 nm 945 nm
Spectral Shape Flat Top Flat Top
ASE Powerc,d 10 mW 15 mW - 10 mW 15 mW -
Optical 3 dB Bandwidthc,d 50 nm 65 nm - 50 nm 65 nm -
RMS Gain Ripplec,e - 0.02 dB 0.3 dB - 0.02 dB 0.3 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.3 A 1.4 A - 0.3 A 1.4 A
TEC Voltage - 0.4 V 6.0 V - 0.4 V 6.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum
LIV Plot LIV Curves
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 420 mA 420 mA
Operating Case Temperature 0 °C to 70 °C 0 °C to 70 °C
Storage Temperature -10 °C to 70 °C -10 °C to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP PM780-HPf
Numerical Aperture 0.13 0.12
Core Diameter 4.4 µm 4.5 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm 5.3 ± 1.0 µm @ 850 nm
Fiber Length 1.5 m 1.5 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • Specification given at operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Slow axis aligned to connector key.

930 nm CWL Superluminescent Diodes

Item # SLD930S-A40W SLD930P-A40W
Parametera Min Typical Max Min Typical Max
Operating Current - - 800 mA - - 800 mA
Center Wavelength (CWL)b 915 nm 930 nm 945 nm 915 nm 930 nm 945 nm
Spectral Shape Flat Top Flat Top
ASE Powerc,d 36 mW 40 mW - 36 mW 40 mW -
Optical 3 dB Bandwidthc,d 40 nm 45 nm - 40 nm 45 nm -
RMS Gain Ripplec,e - 0.06 dB 0.3 dB - 0.06 dB 0.3 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.54 A 1.4 A - 0.54 A 1.4 A
TEC Voltage - 0.78 V 6.0 V - 0.78 V 6.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum Optical Spectrum
LIV Plot LIV Curves LIV Curves
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 800 mA 800 mA
Operating Case Temperature 0 °C to 70 °C 0 °C to 70 °C
Storage Temperature -10 °C to 70 °C -10 °C to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type 780HP PM780-HPf
Numerical Aperture 0.13 0.12
Core Diameter 4.4 µm 4.5 µm
Mode Field Diameter (Nominal) 5.0 ± 0.5 µm @ 850 nm 5.3 ± 1.0 µm @ 850 nm
Fiber Length 1.5 m 1.5 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • Specification given at operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Slow axis aligned to connector key.

970 nm CWL Superluminescent Diodes

Item # SLD970S-A40W SLD970P-A40W
Parametera Min Typical Max Min Typical Max
Operating Current - 1000 mA 1010 mA - 1000 mA 1010 mA
Center Wavelength (CWL)b 945 nm 970 nm 995 nm 945 nm 970 nm 995 nm
Spectral Shape Flat Top Flat Top
ASE Powerc,d 35 mW 40 mW - 35 mW 40 mW -
Optical 3 dB Bandwidthc,d 40 nm 50 nm - 40 nm 50 nm -
RMS Gain Ripplec,e - 0.03 dB 0.2 dB - 0.03 dB 0.2 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.83 A 1.4 A - 0.83 A 1.4 A
TEC Voltage - 1.2 V 6.0 V - 1.2 V 6.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 1010 mA 1010 mA
Operating Case Temperature 0 °C to 70 °C 0 °C to 70 °C
Storage Temperature -10 °C to 70 °C -10 °C to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type HI1060 PM980-XPf
Numerical Aperture 0.14 0.12
Core Diameter 5.8 µm 5.5 µm
Mode Field Diameter (Nominal) 5.9 ± 0.3 µm @ 980 nm 6.6 ± 0.5 µm @ 980 nm
Fiber Length 1.5 m 1.5 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • Specification given at operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Slow axis aligned to connector key.

1050 nm CWL Superluminescent Diodes

Item # SLD1050S-A60a SLD1050P-A60a
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 1025 nm 1050 nm 1075 nm 1025 nm 1050 nm 1075 nm
Spectral Shape Flat Top Flat Top
Operating Current - - 1010 mA - - 1010 mA
ASE Powerc,d 55 mW 60 mW - 55 mW 60 mW -
Optical 3 dB Bandwidthc 60 nm 70 nm - 60 nm 70 nm -
Optical 20 dB Bandwidthc - 100 nm - - - -
RMS Gain Ripplec,e - 0.03 dB 0.2 dB - 0.06 dB 0.2 dB
Forward Voltagec - 2.0 V 2.5 V - 2.0 V 2.5 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 65 °C
TEC Current - 0.7 A 2.5 A - 0.7 A 2.5 A
TEC Voltage - 0.9 V 3.2 V - 0.9 V 3.2 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 1010 mA 1010 mA
Operating Case Temperature 0 to 70 °C 0 to 70 °C
Storage Temperature -10 to 70 °C -10 to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type HI1060 PM980-XPf
Numerical Aperture 0.14 0.12
Core Diameter 6.2 µm 5.5 µm
Mode Field Diameter (Nominal) 6.2 ± 0.3 µm @ 1060 nm 6.6 ± 0.5 µm @ 980 nm
Fiber Length 1.5 m 1.5 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • At Operating Current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Slow axis aligned to connector key.

1220 nm CWL Superluminescent Diodes

Item # SLD1220 SLD1220P
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 1205 nm 1220 nm 1235 nm 1205 nm 1220 nm 1235 nm
Spectral Shape Flat Top Flat Top
Operating Current - 400 mA 450 mA - 400 mA 450 mA
ASE Powerc,d 4 mW 5 mW - 4 mW 5 mW -
Optical 3 dB Bandwidthc,e 85 nm 90 nm - 85 nm 90 nm -
RMS Gain Ripplec,f - 0.05 dB 0.35 dB - 0.05 dB 0.35 dB
Forward Voltagec - 1.7 V 2.0 V - 1.7 V 2.0 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.28 A 1.5 A - 0.28 A 1.5 A
TEC Voltage - 0.39 V 3.5 V - 0.39 V 3.5 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Integrated Isolator
Isolation - 50 dB - - 50 dB -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Absolute Maximum Ratingsg
Absolute Max Current 1.5 A 1.5 A
Operating Case Temperature 0 to 70 °C 0 to 70 °C
Storage Temperature -10 to 70 °C -10 to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type HI1060 Corning® PM13-U40A
Numerical Aperture 0.14 0.12
Mode Field Diameter (Nominal) 5.9 ± 0.3 µm @ 980 nm
6.2 ± 0.3 µm @ 1030 nm		 9.3 ± 0.5 µm @ 1550 nm
Fiber Length 1.50 m 1.50 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Keyh
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Values are given for CW operation at TCHIP = 15 to 30 °C / TCASE = 0 to 70 °C.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm
  • Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The connector key is aligned to the slow axis of the PM fiber.

1310 nm and 1315 nm CWL Superluminescent Diodes

Item # SLD1021S SLD1310 SLD1310P
Parametera Min Typical Max Min Typical Max Min Typical Max
Operating Current - 700 mA 900 mA - 900 mA 1000 mA - 900 mA 1000 mA
Center Wavelength (CWL)b 1290 nm - 1330 nm 1300 nm 1315 nm 1330 nm 1300 nm 1315 nm 1330 nm
Spectral Shape Near Gaussian Flat Top Flat Top
ASE Powerc,d 10 mW 12.5 mW - 22 mW 30 mW - 22 mW 30 mW -
Optical 3 dB Bandwidthc,d,e 80 nm 85 nm - 75 nm 90 nm - 75 nm 90 nm -
RMS Gain Ripplec,f - - 0.35 dB - 0.12 dB 0.3 dB - 0.12 dB 0.3 dB
Forward Voltage - 1.55 V 2.0 V - 2.0 V 2.3 V - 2.0 V 2.3 V
Polarization Extinction Ratio (PER) - - - - - - - 23 dB -
Operating Temperature Range 0 to 40 °C 0 °C to 70 °C 0 °C to 70 °C
TEC Operationg
TEC Current - 0.4 A 1.5 A - 0.7 A 1.5 A - 0.7 A 1.5 A
TEC Voltage - 0.5 V 4 V - 1.0 V 4.0 V - 1.0 V 4.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ - - 10 kΩ -
Integrated Isolator
Isolation N/Ah - 50 dB - - 50 dB -
Performance Graphs (Click Icons for Plots) 
Output Spectrum Optical Spectrum Optical Spectrum
LIV Plot LIV Curves LIV Curves
Gain Ripplef -
Absolute Maximum Ratingsi
Absolute Max Current - - 1000 mA
Operating Case Temperature - - 0 °C to 70 °C
Storage Temperature - - -10 °C to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type SMF-28+ SMF-28e Corning PM13-U40Aj
Numerical Aperture 0.14 0.14 0.12
Core Diameter 8.2 µm  8.2 µm  -
Mode Field Diameter 9.2 ± 0.4 µm @ 1310 nm
10.2 ± 0.5 µm @ 1550 nm		 9.2 ± 0.4 µm @ 1310 nm
10.2 ± 0.5 µm @ 1550 nm		 9.3 ± 0.5 µm @ 1300 nm
Fiber Length 1.5 m 1.5 m ± 0.05 m 1.5 m ± 0.05 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Values are given for CW operation and either TCHIP = 25 °C / TCASE = 0 to 65 °C for the SLD1021S or TCHIP = 15 to 30 °C / TCASE = 0 to 70 °C for SLD1310x. 
  • The center wavelength (CWL) for an SLD with a near-gaussian spectral shape is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength; for a SLD with a flat-top spectral shape, the CWL is defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE Power, we guarantee the minimum 3 dB bandwidth.
  • Measurement Resolution = 0.02 nm
  • For the SLD1021S, Typ. / Max are given for TCASE = 25 °C / 65 °C. For the SLD1310x, Typ. / Max are given for TCASE = 25 °C / 70 °C.
  • These SLDs do not include an integrated isolator.
  •  Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The connector key is aligned to the slow axis of the PM fiber.

1325 nm CWL Superluminescent Diodes

Item # SLD1325 SLD1330 SLD1330P
Parametera Min Typical Max Min Typical Max Min Typical Max
Operating Current - - 780 mA - 1250 mA 1300 mA - 1250 mA 1300 mA
Center Wavelength (CWL)b - 1325 nm - 1310 nm 1325 nm 1340 nm 1310 nm 1325 nm 1340 nm
Spectral Shape Flat Top Flat Top Flat Top
ASE Powerc,d 10 mW - - 35 mW 40 mW - 35 mW 40 mW -
Optical 3 dB Bandwidthc,d,e 100 nm - - 80 nm 90 nm - 80 nm 90 nm -
RMS Gain Ripplec,f - - - - 0.1 dB 0.3 dB - 0.1 dB 0.3 dB
Forward Voltage - - 4 V - 2.3 V 2.5 V - 2.3 V 2.5 V
Polarization Extinction Ratio (PER) - - - - - - - 23 dB -
Operating Temperature Range 0 to 40 °C 0 to 70 °C 0 to 70 °C
TEC Operationg
TEC Current - - 4 A - 1.2 A 1.5 A - 1.2 A  1.5 A
TEC Voltage - - 4 V - 1.6 V 4.0 V - 1.6 V 4.0 V
Thermistor Resistance - - 10 kΩ - 10 kΩ - - 10 kΩ -
Steinhart-Hart Coefficients C1 = 1.1291x10-3, C2 = 2.3413x10-4, and C3 = 0.8767x10-7
Integrated Isolator
Isolation 30 dB - - - 50 dB - - 50 dB -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplef -
Absolute Maximum Ratingsh
Absolute Max Current - 1300 mA 1300 mA
Operating Case Temperature - 0 °C to 70 °C 0 °C to 70 °C
Storage Temperature - -10 °C to 70 °C -10 °C to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type SMF-28+ SMF-28e Corning PM13-U40Ai
Numerical Aperture 0.14 0.14 0.12
Core Diameter 8.2 µm  8.2 µm  -
Mode Field Diameter 9.2 ± 0.4 µm @ 1310 nm
10.2 ± 0.5 µm @ 1550 nm		 9.2 ± 0.4 µm @ 1310 nm
10.2 ± 0.5 µm @ 1550 nm		 9.3 ± 0.5 µm @ 1300 nm
Fiber Length 1.5 m 1.5 m ± 0.05 m 1.5 m ± 0.05 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Values are given for CW operation at TCHIP = 15 to 30 °C / TCASE = 0 to 70 °C for SLD1330x.
  • Defined as the midpoint of the 3 dB bandwidth. See the definitions above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail at the operating current.
  • At the minimum ASE Power, we guarantee the minimum 3 dB bandwidth.
  • Measurement Resolution = 0.02 nm
  • For the SLD1330x, Typ. / Max are given for TCASE = 25 °C / 70 °C.
  • Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The connector key is aligned to the slow axis of the PM fiber.

1400 nm CWL Superluminescent Diodes

Item # SLD1410a SLD1410Pa
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 1385 nm 1400 nm 1415 nm 1385 nm 1400 nm 1415 nm
Spectral Shape Near Gaussian Near Gaussian
Operating Current - 600 mA 700 mA - 600 mA 700 mA
ASE Powerc,d 4 mW 5 mW - 4 mW 5 mW -
Optical 3 dB Bandwidthc,e 90 nm 98 nm - 90 nm 98 nm -
RMS Gain Ripplec,f - 0.2 dB 0.6 dB - 0.2 dB 0.6 dB
Forward Voltagec - 1.7 V 2.0 V - 1.7 V 2.0 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.38 A 1.5 A - 0.38 A 1.5 A
TEC Voltage - 0.55 V 3.5 V - 0.55 V 3.5 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Integrated Isolator
Isolation - 30 dB - - 30 dB -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplec,f
Absolute Maximum Ratingsa
Absolute Max Current 700 mA 700 mA
Operating Case Temperature 0 to 70 °C 0 to 70 °C
Storage Temperature -10 to 70 °C -10 to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type SMF-28e (SM) Corning PM13-U40A (PM)g
Numerical Aperture 0.14 0.12
Mode Field Diameter (Nominal) 10.4 ± 0.5 µm @ 1550 nm 9.3 ± 0.5 µm @ 1550 nm
Fiber Length 1.5 m 1.5 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the definitions above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.1 nm
  • The connector key is aligned to the slow axis of the PM fiber.

1450 nm CWL Superluminescent Diodes

Item # SLD1450Sa SLD1450Pa
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 1435 nm 1450 nm 1465 nm 1435 nm 1450 nm 1465 nm
Spectral Shape Near Gaussian Near Gaussian
Operating Current - 500 mA 600 mA - 500 mA 600 mA
ASE Powerc,d  23 mW 25 mW - 23 mW 25 mW -
Optical 3 dB Bandwidthc 50 nm 54 nm - 50 nm 54 nm -
RMS Gain Ripplec,e - 0.06 dB 0.35 dB - 0.06 dB 0.35 dB
Forward Voltagec - 1.7 V 2.0 V - 1.7 V 2.0 V
TEC Operation: Typ. / Max @ TCASE = 25 °C / 65 °C
TEC Current - 0.3 A 1.5 A - 0.3 A 1.5 A
TEC Voltage - 0.4 V 4.0 V - 0.4 V 4.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 600 mA 600 mA
Operating Case Temperature 0 to 70 °C 0 to 70 °C
Storage Temperature -10 to 70 °C -10 to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type SMF-28e (SM) Corning PM15-U40A (PM)g
Numerical Aperture 0.14 0.125
Mode Field Diameter (Nominal) 9.2 ± 0.4 µm @ 1310 nm
10.4 ± 0.5 µm @ 1550 nm		 10.5 ± 0.5 µm @ 1550 nm
Fiber Length 1.5 m 1.5 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the definitions above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.1 nm
  • The connector key is aligned to the slow axis of the PM fiber.

1610 nm CWL Superluminescent Diodes

Item # SLD1610a SLD1610Pa
Parametera Min Typical Max Min Typical Max
Center Wavelength (CWL)b 1590 nm 1610 nm 1630 nm 1590 nm 1610 nm 1630 nm
Spectral Shape Near Gaussian Near Gaussian
Operating Current - 800 mA 900 mA - 800 mA 900 mA
ASE Powerc,d  22 mW 27 mW - 22 mW 27 mW -
Optical 3 dB Bandwidthc 50 nm 57 nm - 50 nm 57 nm -
RMS Gain Ripplec,e - 0.2 dB 0.5 dB - 0.2 dB 0.5 dB
Forward Voltagec - 1.8 V 2.2 V - 1.8 V 2.2 V
Polarization Extinction Ratio - - - 15 dB 24 dB -
TEC Operation: Typ. / Max @ TCASE = 25 °C / 70 °C
TEC Current - 0.5 A 1.5 A - 0.5 A 1.5 A
TEC Voltage - 0.8 V 4.0 V - 0.8 V 4.0 V
Thermistor Resistance - 10 kΩ - - 10 kΩ -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
Absolute Maximum Ratingsa
Absolute Max Current 900 mA 900 mA
Operating Case Temperature 0 to 70 °C 0 to 70 °C
Storage Temperature -10 to 70 °C -10 to 70 °C
Pin Code 14 Pin, Type 1 14 Pin, Type 1
Fiber Specifications
Fiber Type SMF-28e (SM) Corning PM15-U40A (PM)g
Numerical Aperture 0.14 0.125
Mode Field Diameter (Nominal) 10.4 ± 0.5 µm @ 1550 nm 10.5 ± 0.5 µm @ 1550 nm
Fiber Length 1.5 m ± 0.05 m 1.5 m ± 0.05 m
Connector FC/APC, 2.0 mm Narrow Key FC/APC, 2.0 mm Narrow Key
  • These Operating Specifications are a consistent set of values which will yield the specified performance. Please note that exceeding the Absolute Maximum Ratings in the table may cause device failure.
  • The center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the definitions above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.1 nm
  • The connector key is aligned to the slow axis of the PM fiber.

Spectral Comparison of SLDs for OCT

These graphs provide a comparison between the optical spectra of our SLDs for OCT over the entire range they span. SLDs with both an SM and PM fiber-coupled version are represented with a single spectrum that is valid for both products and indicated in the graphs below with an "x" in the part number. The raw data for all the optical spectra are available for download here.

Optical spectra for OCT SLDs.
Click to Enlarge
Optical spectra comparison for OCT SLDs.
Optical spectra for 770 to 850 nm OCT SLDs.
Click to Enlarge
Optical spectra comparison for OCT SLDs with center wavelengths from
770 to 850 nm. 
Optical spectra for 880 to 1050 nm OCT SLDs.
Click to Enlarge
Optical spectra comparison for OCT SLDs with center wavelengths from
880 to 1050 nm.
Optical spectra for 1220 to 1550 nm OCT SLDs.
Click to Enlarge
Optical spectra comparison for OCT SLDs with center wavelengths from
1220 to 1610 nm.
Theoretical Limit of Axial Resolution for a 1325 nm SD OCT system
Click to Enlarge
Theoretical axial resolution for a Spectral Domain OCT System utilizing a 1325 nm
light source, assuming an ideal source with Gaussian spectral distribution.

The theoretical axial (depth) resolution of a Spectral Domain OCT imaging system is

SD-OCT Resolution Equation.

Here, Δz, is the axial resolution (FWHM of the autocorrelation function) while Δλ is the FWHM of the power spectrum of the SLD light source. The index of refraction (n) of air is ~1, so for a central wavelength (λ) of 1325 nm and a spectral bandwidth of 100 nm, the theoretical axial resolution would be approximately
7.7 µm (see plot). This equation assumes an ideal source with Gaussian spectral distribution. To reduce
side-lobe artifacts that may arise from utilizing non-Gaussian sources, we recommend applying a spectral filter to the detected interferogram. Depending on the filter applied, the actual resolution may be reduced.

Butterfly Package, Type 1

Pin drawing for butterfly package
Pin Description Pin Description
1 + TEC 14 - TEC
2 Thermistor 13 Case Ground
3 Not Connected 12 Not Connected
4 Not Connected 11 SLD Cathode
5 Thermistor 10 SLD Anode
6 Not Connected 9 Not Connected
7 Not Connected 8 Not Connected

Posted Comments:
Jang Jin  (posted 2020-07-21 22:29:26.41)
I am writing to inquire about SLD1050S-A60 life time. I look forward to hearing from you in my inquiry soon. Thank you.
YLohia  (posted 2020-07-23 04:58:31.0)
Thank you for contacting Thorlabs. We expect the lifetime of the SLD1050S-A60 to be >100,000 hours at 60 mW/950 mA/25 C operating parameters.
Murat Yessenov  (posted 2020-05-27 20:07:04.087)
Hi! I wonder if you can make a custom-made SLD at a slightly different wavelength. We are interested in an SLD similar to SLD830S-A20, but centered at or closer to 800 nm? Thanks!
YLohia  (posted 2020-05-28 09:37:32.0)
Hello, thank you for contacting Thorlabs. Is there any specific reason that the SLD830S-A20W does not work for your application? This is a broadband SLED and will cover a wide region of wavelengths around 800 nm. I have reached out to you directly to discuss this further.
robert  (posted 2017-08-22 09:01:35.56)
Dear, I have one question regarding SLD unit in OCT instruments for example Topcon OCT-2000. Has a SLD unit lifitime and how we can count this lifetime ? Is this is depending only from how many OCT images has been done or also how many years are old SLD unit. IS life time is also depending of working hours of SLD for example we have switch on OCT 8 hours every day and we done maybe 20 OCT images. Thanks a lot for your help. Regards, Robert Rimc
tfrisch  (posted 2017-09-13 11:22:29.0)
Hello, thank you for contacting Thorlabs. Lifetime can be estimated, but it will vary for different operating conditions. I will reach out to you directly to discuss your application.
jjurado  (posted 2011-07-12 10:31:00.0)
Response from Javier at Thorlabs to last poster: Thank you very much for your feedback. You are correct in asserting that the theoretical resolution is based on the assumption of a Gaussian profile. There are analytical filtering techniques which can be performed to reshape the spectrum of the SLD1325 to provide a Gaussian shape. The actual resolution will sacrifice a bit, but in practice it is nominal. We will add information to the resolution tab shortly to clarify this. Please do not hesitate to contact us at techsupport@thorlabs.com if you have any further questions or comments.
user  (posted 2011-07-11 10:41:04.0)
The theoretical resolution is based on a gaussian shape. The equation is not valid for this light source, but you suggest it would.
Tyler  (posted 2009-02-13 08:11:21.0)
A response from Tyler at Thorlabs to xzhao: Thank you for pointing out the units mistake. It has been fixed.
xzhao  (posted 2009-02-13 00:30:17.0)
Dear Webmaster, The Spec for SLD1325 should be Bandwidth* >100 nm but not Bandwidth* >100 mW Thanks, Xuefeng Zhao Thorlabs Japan
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770 nm CWL Superluminescent Diode for OCT

Item #a SLD770S
Parameter Min Typ. Max
Operating Current - - 170 mA
Center Wavelength (CWL)b 760 nm 770 nm 780 nm
Spectral Shape Near Gaussian
ASE Powerc 4.5 mW 5.5 mW -
Optical 3 dB Bandwidthc,d 15 nm 18 nm -
RMS Gain Ripplec,e - 0.01 dB 0.3 dB
Fiber Type 780HP
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
  • Full specifications are available by clicking on the Specs tab above.
  • The center wavelength for an SLD with a near-gaussian spectral shape is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the Specs tab above for details.
  • At Operating Current
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm
  • 770 nm Superluminescent Diode with 18 nm Typical 3 dB Bandwidth
  • 5.5 mW Typical Fiber-Coupled Output Power
  • Extremely Low Typical Gain Ripple

This superluminescent diode is designed to be used in OCT Systems that require an illumination source with extremely low gain ripple of 0.01 dB (RMS) and a relatively flat spectrum over an 18 nm wide 3 dB bandwidth. It is available with a minimum fiber-coupled output power of 4.5 mW.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD770S Support Documentation
SLD770S5.5 mW SLD, CWL = 770 nm, 18 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$1,536.89
3-5 Days
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810 nm CWL Superluminescent Diode for OCT

Item #a SLD810S
Parameter Min Typ. Max
Operating Current - - 270 mA
Center Wavelength (CWL)b 795 nm 810 nm 825 nm
Spectral Shape Near Gaussian
ASE Powerc,d 13 mW 15 mW -
Optical 3 dB Bandwidthc 25 nm 30 nm -
RMS Gain Ripplec,e - 0.03 dB 0.15 dB
Fiber Type 780HP
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
  • Full specifications are available by clicking on the Specs tab above.
  • The center wavelength for an SLD with a near-gaussian spectral shape is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the Specs tab above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • 810 nm Superluminescent Diodes with 30 nm Typical 3 dB Bandwidth
  • 15 mW Typical Fiber-Coupled Output Power
  • Extremely Low Typical Gain Ripple

This superluminescent diode is designed to be used in OCT Systems that require an illumination source with extremely low gain ripple of 0.03 dB (RMS) and a relatively flat spectrum over a 30 nm wide 3 dB bandwidth. It is available with a minimum fiber-coupled output power of 13 mW.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD810S Support Documentation
SLD810S15 mW SLD, CWL = 810 nm, 30 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,005.21
3-5 Days
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830 nm CWL Superluminescent Diodes for OCT

  • 830 nm Superluminescent Diodes with 20 nm, 55 nm, 60 nm Typical 3 dB Bandwidth
  • Extremely Low Typical Gain Ripple
  • 10 mW or 20 mW Minimum Fiber-Coupled Output Power

These superluminescent diodes are designed to be used in OCT Systems that require an illumination source with extremely low gain ripple of 0.03 dB or 0.06 dB (RMS) and a relatively flat spectrum over a 20 nm, 55 nm, or 60 nm wide 3 dB bandwidth. They are available with a minimum fiber-coupled output power of 10 mW or 20 mW.

Note that the specifications in the table below are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications below are specified at the operating current.

Item #a SLD830S-A10W SLD830S-A20W SLD830S-A10 SLD830S-A20
Parameter Min Typ. Max Min Typ. Max Min Typ. Max Min Typ. Max
Operating Current - - 240 mA - - 330 mA - - 150 mA - - 240 mA
Center Wavelength (CWL)b 815 nm 830 nm 845 nm 815 nm 830 nm 845 nm 820 nm 830 nm 840 nm 820 nm 830 nm 840 nm
Spectral Shape Flat Top Flat Top Near Gaussian Near Gaussian
ASE Powerc,d 10 mW - - 20 mW - - 10 mW 13 mW - 20 mW 22 mW -
Optical 3 dB Bandwidthc,e 50 nm 60 nm - 40 nm 55 nm - 17 nm 20 nm - 17 nm 20 nm -
Optical 20 dB Bandwidthc - - - - - - - 50 nm - - 50 nm -
RMS Gain Ripplec,f - 0.06 dB 0.3 dB - 0.03 dB 0.3 dB - 0.03 dB 0.15 dB - 0.03 dB 0.15 dB
Fiber Type 780HP
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum Optical Spectrum
LIV Plot LIV Curves LIV Curves
Gain Ripplef
  • Full specifications are available by clicking on the Specs tab above.
  • The center wavelength for an SLD with a flat-top spectral shape is defined as the midpoint of the 3 dB bandwidth; for an SLD with a near-gaussian spectral shape, the center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the Specs tab above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • For SLD830S-A10W and SLD830S-A20W: At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD830S-A10W Support Documentation
SLD830S-A10W10 mW (Min) SLD, CWL = 830 nm, 60 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,317.95
3-5 Days
SLD830S-A20W Support Documentation
SLD830S-A20W20 mW (Min) SLD, CWL = 830 nm, 55 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,579.77
3-5 Days
SLD830S-A10 Support Documentation
SLD830S-A1013 mW SLD, CWL = 830 nm, 20 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,005.21
3-5 Days
SLD830S-A20 Support Documentation
SLD830S-A2022 mW SLD, CWL = 830 nm, 20 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,368.72
3-5 Days
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840 nm CWL Superluminescent Diode for OCT

Item # SLD840x
Parametera Min Typ. Max
Operating Current - 140 mA 180 mA
Center Wavelength (CWL)b 820 nm 840 nm 860 nm
Spectral Shape Flat Top
ASE Powerc,d 3 mW 4 mW -
Optical 3 dB Bandwidthc 60 nm 70 nm -
RMS Gain Ripplec,e - 0.01 dB 0.1 dB
Fiber Type 780HP (SM)
PM780-HP (PM)f
Performance Graphs (Click Icons for Plots)
Output Spectrum
Optical Spectrum
SM		 Optical Spectrum
PM
LIV Plot
LIV Curves
SM		 LIV Curves
PM
Gain Ripplee

SM
PM
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • Specification given at the operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Connector key is aligned to slow axis.
  • 840 nm Superluminescent Diodes with 70 nm Typical 3 dB Bandwidth
  • 4 mW Typical Fiber-Coupled Output Power
  • Extremely Low Typical Gain Ripple of 0.01 dB (RMS)

These superluminescent diodes are designed to be used in OCT Systems that require an illumination source with extremely low typical gain ripple of 0.01 dB (RMS) and a relatively flat spectrum over a 70 nm wide 3 dB bandwidth. They are available with a minimum fiber-coupled output power of 3 mW.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD840 Support Documentation
SLD8404 mW SLD, CWL = 840 nm, 70 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,360.22
3-5 Days
SLD840P Support Documentation
SLD840P4 mW SLD, CWL = 840 nm, 70 nm 3 dB BW, Butterfly Pkg., PM Fiber, FC/APC
$2,513.22
3-5 Days
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850 nm CWL Superluminescent Diodes for OCT

  • 850 nm Superluminescent Diodes with 55 nm or 60 nm Typical 3 dB Bandwidth
  • 10 mW or 20 mW Minimum Fiber-Coupled Output Power
  • Extremely Low Typical Gain Ripple

These superluminescent diodes are designed to be used in OCT Systems that require an illumination source with extremely low typical gain ripple of 0.03 dB (RMS) and a relatively flat spectrum over a 55 nm or 60 nm wide 3 dB bandwidth. They are available with a minimum fiber-coupled output power of 10 mW or 20 mW.

Note that the specifications in the table below are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications below are specified at the operating current.

Item #a SLD850S-A10W SLD850S-A20W
Parameter Min Typ. Max Min Typ. Max
Operating Current - - 180 mA - - 340 mA
Center Wavelength (CWL)b 835 nm 850 nm 865 nm 835 nm 850 nm 865 nm
Spectral Shape Flat Top Flat Top
ASE Powerc,d 10 mW - - 20 mW - -
Optical 3 dB Bandwidthc,e 40 nm 60 nm - 40 nm 55 nm -
RMS Gain Ripplec,f - 0.03 dB 0.3 dB - 0.03 dB 0.3 dB
Fiber Type 780HP
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplef
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm
Based on your currency / country selection, your order will ship from Newton, New Jersey  
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SLD850S-A10W Support Documentation
SLD850S-A10W10 mW (Min) SLD, CWL = 850 nm, 60 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,360.22
3-5 Days
SLD850S-A20W Support Documentation
SLD850S-A20W20 mW (Min) SLD, CWL = 850 nm, 55 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,579.77
3-5 Days
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880 nm CWL Superluminescent Diodes for OCT

  • 880 nm Superluminescent Diodes with 40 nm Typical 3 dB Bandwidth
  • 7 mW or 25 mW Typical Fiber-Coupled Output Power
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

These superluminescent diodes are designed to be used in OCT Systems. They have a low typical gain ripple of 0.06 dB (RMS) and a relatively flat spectrum over a 40 nm wide 3 dB bandwidth. They are available with a typical fiber-coupled output power of 7 mW or 25 mW.

Note that the specifications in the table below are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications below are specified at the operating current.

Item #a SLD880S-A7 SLD880S-A25
Parameter Min Typ. Max Min Typ. Max
Operating Current - - 225 mA - - 410 mA
Center Wavelength (CWL)b 860 nm 880 nm 900 nm 860 nm 880 nm 900 nm
Spectral Shape Flat Top Flat Top
ASE Powerc,d 6 mW 7 mW - 23 mW 25 mW -
Optical 3 dB Bandwidthc 35 nm 40 nm - 35 nm 40 nm -
Optical 20 dB Bandwidthc - 80 nm - - 80 nm -
RMS Gain Ripplec,e - 0.06 dB 0.3 dB - 0.06 dB 0.3 dB
Fiber Type 780HP
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum Optical Spectrum
LIV Plot LIV Curves LIV Curves
Gain Ripplee
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • Specification given at the operating current. At the minimum ASE power, we guarantee the minimum 3 dB bandwidth.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
Based on your currency / country selection, your order will ship from Newton, New Jersey  
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SLD880S-A7 Support Documentation
SLD880S-A77 mW SLD, CWL = 880 nm, 40 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,038.10
3-5 Days
SLD880S-A25 Support Documentation
SLD880S-A2525 mW SLD, CWL = 880 nm, 40 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,503.96
3-5 Days
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920 nm CWL Superluminescent Diodes for OCT

Item #a SLD920x
Parameter Min Typ. Max
Operating Current  - - 420 mA
Center Wavelength (CWL)b 895 nm 920 nm 945 nm
Spectral Shape Flat Top
ASE Powerc,d 10 mW 15 mW -
Optical 3 dB Bandwidthc 50 nm 65 nm -
RMS Gain Ripplec,e - 0.02 dB 0.3 dB
Fiber Type 780HP (SM)
PM780-HP (PM)f
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum
LIV Plot LIV Curves
Gain Ripplee
  • Additional specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • Specification given at the operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • The connector key is aligned to the slow axis of the PM fiber.
  • 920 nm SLDs with 65 nm Typical 3 dB Bandwidth
  • 15 mW Typical Fiber-Coupled Output Power
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

These superluminescent diodes are designed to be used in OCT Systems. They have a low typical RMS gain ripple of 0.02 dB, a relatively flat spectrum over a 65 nm wide typical 3 dB bandwidth, and 15 mW typical fiber-coupled output power.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
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SLD920P Support Documentation
SLD920P15 mW SLD, CWL = 920 nm, 65 nm 3 dB BW, Butterfly Pkg., PM Fiber, FC/APC
$1,701.55
3-5 Days
SLD920S Support Documentation
SLD920S15 mW SLD, CWL = 920 nm, 65 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$1,536.89
3-5 Days
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930 nm CWL Superluminescent Diodes for OCT

Item #a SLD930x-A40W
Parameter Min Typ. Max
Operating Current - - 800 mA
Center Wavelength (CWL)b 915 nm 930 nm 945 nm
Spectral Shape Flat Top
ASE Powerc,d 36 mW 40 mW -
Optical 3 dB Bandwidthc 40 nm 45 nm -
RMS Gain Ripplec,e - 0.06 0.3
Fiber Type 780HP (SM)
PM780-HP (PM)g
Performance Graphs (Click Icons for Plots)
Output Spectrum
Optical Spectrum
SM		 Optical Spectrum
PM
LIV Plot
LIV Curves
SM		 LIV Curves
PM
Gain Ripplee

SM
PM
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • Specification given at the operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Connector key is aligned to slow axis.
  • 930 nm SLDs with 40 nm Typical 3 dB Bandwidth
  • 40 mW Typical Fiber-Coupled Output Power
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

These superluminescent diodes are designed to be used in OCT Systems. They have a low typical RMS gain ripple of 0.06 dB, a relatively flat spectrum over a 45 nm wide typical 3 dB bandwidth, and 40 mW typical fiber-coupled output power.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD930S-A40W Support Documentation
SLD930S-A40W40 mW SLD, CWL = 930 nm, 45 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,743.34
3-5 Days
SLD930P-A40W Support Documentation
SLD930P-A40W40 mW SLD, CWL = 930 nm, 45 nm 3 dB BW, Butterfly Pkg., PM Fiber, FC/APC
$2,908.01
3-5 Days
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970 nm CWL Superluminescent Diodes for OCT

Item #a SLD970S-A40W
Parameter Min Typ. Max
Operating Current - 1000 mA 1010 mA
Center Wavelength (CWL)b 945 nm 970 nm 995 nm
Spectral Shape Flat Top
ASE Powerc,d 35 mW 40 mW
Optical 3 dB Bandwidthc 40 nm 50 nm
RMS Gain Ripplec,e 0.03 dB 0.2 dB
Fiber Type HI1060 (SM)
PM980-XP (PM)f
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplef
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • Specification given at operating current. At the minimum ASE power, we guarantee the minimum 3 dB bandwidth.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Connector key aligned to slow axis.
  • 970 nm Superluminescent Diodes with 50 nm Typical 3 dB Bandwidth
  • 40 mW Typical Fiber-Coupled Output Power
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

This superluminescent diode is designed to be used in OCT Systems. It has a low typical gain ripple of 0.03 dB (RMS) and a relatively flat spectrum over a 50 nm wide 3 dB bandwidth. This SLD is available with a typical fiber-coupled output power of 40 mW.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications below are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
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SLD970S-A40W Support Documentation
SLD970S-A40W40 mW (Typ.) SLD, CWL = 970 nm, 50 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,743.34
3-5 Days
SLD970P-A40W Support Documentation
SLD970P-A40W40 mW (Typ.) SLD, CWL = 970 nm, 50 nm 3 dB BW, Butterfly Pkg., PM Fiber, FC/APC
$2,908.01
3-5 Days
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1050 nm CWL Superluminescent Diodes for OCT

  • 1050 nm Superluminescent Diode with 70 nm Typical 3 dB Bandwidth
  • 60 mW Typical Fiber-Coupled Output Power
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

This superluminescent diode is designed to be used in OCT Systems. It has a low typical gain ripple of 0.03 dB (RMS) and a relatively flat spectrum over a 70 nm wide 3 dB bandwidth. This SLD is available with a typical fiber-coupled output power of 60 mW.

Note that the specifications in the table below are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications below are specified at the operating current.

Item #a SLD1050S-A60 SLD1050P-A60
Parameter Min Typ. Max Min Typ. Max
Operating Current - - 1010 mA - - 1010 mA
Center Wavelength (CWL)b 1025 nm 1050 nm 1075 nm 1025 nm 1050 nm 1075 nm
Spectral Shape Flat Top Flat Top
ASE Powerc,d 55 mW 60 mW - 55 mW 60 mW -
Optical 3 dB Bandwidthc 60 nm 70 nm - 60 nm 70 nm -
Optical 20 dB Bandwidthc - 100 nm - - - -
RMS Gain Ripplec,e - 0.03 dB 0.2 dB - 0.06 dB 0.2 dB
Fiber Type HI1060 PM980-XPf
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplee
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • Specification given at operating current. At the minimum ASE power, we guarantee the minimum 3 dB bandwidth.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.02 nm
  • Connector key aligned to the slow axis.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD1050S-A60 Support Documentation
SLD1050S-A6060 mW SLD, CWL = 1050 nm, 70 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,853.35
3-5 Days
SLD1050P-A60 Support Documentation
SLD1050P-A6060 mW SLD, CWL = 1050 nm, 70 nm 3 dB BW, Butterfly Pkg., PM Fiber, FC/APC
$3,024.65
3-5 Days
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1220 nm CWL Superluminescent Diode for OCT

Item #a SLD1220x
Parameter Min Typ. Max
Operating Current  - 400 mA 450 mA
Center Wavelength (CWL)b 1205 nm 1220 nm 1235 nm
Spectral Shape Flat Top
ASE Powerc,d 4 mW 5 mW -
Optical 3 dB Bandwidthc,e 85 nm 90 nm -
RMS Gain Ripplec,f - 0.05 dB 0.35 dB
Fiber Type HI1060 (SM)
Corning® PM13-U40A (PM)
Integrated Optical Isolator
Isolation - 50 dB -
Performance Graphs (Click Icons for Plots)
Output Spectrum
Optical Spectrum
SM		 Optical Spectrum
PM
LIV Plot
LIV Curves
SM		 LIV Curves
PM
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • Specification given at the operating current.
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.02 nm
  • 1220 nm Superluminescent Diodes with 90 nm Typical 3 dB Bandwidth
  • 5 mW Typical Fiber-Coupled Output Power
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

These superluminescent diodes are designed to be used in OCT Systems. They have a low gain ripple no larger than 0.35 dB (RMS), a typical ripple of 0.05 dB (RMS), and a relatively flat spectrum over a 90 nm wide 3 dB bandwidth. These SLDs are available with a typical fiber-coupled output power of 5 mW. They are packaged with an integrated TEC and thermistor for temperature control, as well as a dual-stage optical isolator that provides 50 dB of isolation for enhanced optical stability.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications on the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD1220 Support Documentation
SLD12205 mW SLD, CWL = 1220 nm, 90 nm 3 dB BW, 50 dB Isolation, Butterfly Pkg., SM Fiber, FC/APC
$4,150.00
3-5 Days
SLD1220P Support Documentation
SLD1220P5 mW SLD, CWL = 1220 nm, 90 nm 3 dB BW, 50 dB Isolation, Butterfly Pkg., PM Fiber, FC/APC
$4,300.00
3-5 Days
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1310 nm to 1315 nm CWL Superluminescent Diodes for OCT

  • 1310 nm Superluminescent Diodes with 70 nm Typical 3 dB Bandwidth
  • 12.5 mW or 30 mW Typical Fiber-Coupled Output Power
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

These superluminescent diodes are designed to be used in OCT Systems. They have a low max gain ripple of 0.35 dB (RMS) and a relatively flat spectrum over an 85 nm wide 3 dB bandwidth. They are available with a typical fiber-coupled output power of 12.5 mW. A dual-stage optical isolator is integrated into the SLD1310 and SLD1310P providing a typical of 50 dB optical isolation.

Note that the specifications in the table below are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications below are specified at the operating current.

Item #a SLD1021S SLD1310 SLD1310P
Parameter Min Typ. Max Min Typ. Max Min Typ. Max
Operating Current - 700 mA 900 mA - 900 mA 1000 mA - 900 mA 1000 mA
Center Wavelength (CWL)b 1290 nm - 1330 nm 1300 nm 1315 nm 1330 nm 1300 nm 1315 nm 1330 nm
Spectral Shape Near Gaussian Flat Top Flat Top
ASE Powerc,d 10 mW 12.5 mW - 22 mW 30 mW - 22 mW 30 mW -
Optical 3 dB Bandwidthc,d,e 80 nm 85 nm - 75 nm 90 nm - 75 nm 90 nm -
RMS Gain Ripplec,f - - 0.35 dB - 0.12 dB 0.3 dB - 0.12 0.3
Polarization Extinction Ratio (PER) - - - - - - - 23 dB -
Fiber Type SMF-28e+ SMF-28e Corning® PM13-U40Ag
Integrated Optical Isolator
Isolation N/Ah - 50 dB - - 50 dB -
Performance Graphs (Click Icons for Plots)
Output Spectrum Optical Spectrum Optical Spectrum
LIV Plot LIV Curves LIV Curves
Gain Ripplef -
  • Full specifications are available by clicking on the Specs tab above.
  • The center wavelength (CWL) for an SLD with a near-gaussian spectral shape is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength; for an SLD with a flat-top spectral shape, the CWL is defined as the midpoint of the 3 dB bandwidth. See the Specs tab for details.
  • Specification given at operating current.
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, we guarantee the minimum 3 dB bandwidth.
  • Measurement Resolution = 0.02 nm
  • The connector key is aligned to the slow axis of the PM fiber.
  • These SLDs do not include an integrated isolator.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD1021S Support Documentation
SLD1021S12.5 mW SLD, CWL = 1310 nm, 85 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,333.08
3-5 Days
SLD1310 Support Documentation
SLD131030 mW SLD, CWL = 1315 nm, 90 nm 3 dB BW, 50 dB Isolation, Butterfly Pkg., SM Fiber, FC/APC
$3,162.00
3-5 Days
SLD1310P Support Documentation
SLD1310P30 mW SLD, CWL = 1315 nm, 90 nm 3 dB BW, 50 dB Isolation, Butterfly Pkg., PM Fiber, FC/APC
$3,315.00
3-5 Days
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1325 nm CWL Superluminescent Diodes for OCT

  • 1325 nm Center Wavelength with 90 nm or >100 nm Bandwidth
  • 10 mW Minimum or 40 mW Typical Fiber-Coupled Output Power
  • Integrated Optical Isolator for Enhanced Output Stability
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

The SLD1325 and SLD1330x SLDs have a typical center wavelength of 1325 nm and are designed to have broad 3 dB bandwidths of >100 nm or 90 nm (typical) respectively, making them ideal for high-axial-resolution SD-OCT applications (see the Resolution SD-OCT tab above for more information). These SLDs are packaged with an integrated TEC and thermistor for temperature control, as well as an optical isolator for enhanced optical stability. The isolator in the SLD1325 SLD provides 30 dB minimum of isolation while the isolators in the SLD1330 and SLD1330P SLDs provide 50 dB of isolation.

Note that the specifications in the table below are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications below are specified at the operating current.

Item #a SLD1325 SLD1330 SLD1330P
Parameter Min Typ. Max Min Typ. Max Min Typ. Max
Operating Current - - 780 mA - 1250 mA 1300 mA - 1250 mA 1300 mA
Center Wavelength (CWL)b - 1325 nm - 1310 nm 1325 nm 1340 nm 1310 nm 1325 nm 1340 nm
Spectral Shape Flat Top Flat Top Flat Top
ASE Powerc,d 10 mW - - 35 mW 40 mW - 35 mW 40 mW -
3 dB Optical Bandwidthc,d,e 100 nm - - 80 nm 90 nm - 80 nm 90 nm -
RMS Gain Ripplec,f - 0.1 dB 0.3 dB - 0.1 dB 0.3 dB
Polarization Extinction Ratio (PER) - - - - - - - 23 dB -
Fiber Type SMF-28e SMF-28e Corning® PM13-U40Ag
Integrated Optical Isolator
Isolation 30 dB - - - 50 dB - - 50 dB -
Performance Graphs (Click Icons for Plots)
Output Spectrum
LIV Plot
Gain Ripplef -
  • Full specifications are available by clicking on the Specs tab above.
  • Defined as the midpoint of the 3 dB bandwidth. See the Specs tab above for details.
  • At Operating Current
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE Power, we guarantee the minimum 3 dB bandwidth.
  • Measurement Resolution = 0.02 nm
  • The connector key is aligned to the slow axis of the PM fiber.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD1325 Support Documentation
SLD132510 mW (Min) SLD, CWL = 1325 nm, 100 nm 3 dB BW (Min), 30 dB (Min) Isolation, Butterfly Pkg., SM Fiber, FC/APC
$4,021.12
3-5 Days
SLD1330 Support Documentation
SLD1330Customer Inspired! 40 mW SLD, CWL = 1325 nm, 90 nm 3 dB BW, 50 dB Isolation, Butterfly Pkg., SM Fiber, FC/APC
$4,029.00
3-5 Days
SLD1330P Support Documentation
SLD1330PCustomer Inspired! 40 mW SLD, CWL = 1325 nm, 90 nm 3 dB BW, 50 dB Isolation, Butterfly Pkg., PM Fiber, FC/APC
$4,182.00
3-5 Days
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1400 nm CWL Superluminescent Diodes for OCT

Item #a SLD1410x
Parameter Min Typ. Max
Operating Current  - 600 mA 700 mA
Center Wavelength (CWL)b 1385 nm 1400 nm 1415 nm
Spectral Shape Near Gaussian
ASE Powerc,d 4 mW 5 mW -
Optical 3 dB Bandwidthc,e 90 nm 98 nm -
RMS Gain Ripplec,f - 0.2 dB 0.6 dB
Fiber Type SMF-28e (SM)
Corning® PM13-U40A (PM)
Integrated Optical Isolator
Isolation 30 dB
Performance Graphs (Click Icons for Plots)
Output Spectrum
Optical Spectrum
SM		 Optical Spectrum
PM
LIV Plot
LIV Curves
SM		 LIV Curves
PM
Gain Ripplee

SM
PM
  • Full specifications are available by clicking on the Specs tab above.
  • The center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the Specs tab above.
  • Specification given at the operating current. 
  • Corresponds to the output of the fiber pigtail.
  • At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Measurement Resolution = 0.1 nm
  • 1400 nm Superluminescent Diodes with 98 nm Typical 3 dB Bandwidth
  • 5 mW Typical Fiber-Coupled Output Power
  • Integrated Optical Isolator for Enhanced Output Stability
  • FC/APC-Terminated Fiber Pigtail Minimizes Optical Feedback

These superluminescent diodes are designed to be used in OCT Systems that require an illumination source with extremely low gain ripple of 0.2 dB (RMS) and a relatively flat spectrum over a 98 nm wide 3 dB bandwidth. They are packaged with an integrated TEC and thermistor for temperature control, as well as an optical isolator which provides 30 dB of isolation for enhanced optical stability. The minimum fiber-coupled output power is 4 mW.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD1410 Support Documentation
SLD14105 mW SLD, CWL = 1400 nm, 98 nm 3 dB BW, 30 dB Isolation, Butterfly Pkg., SM Fiber, FC/APC
$2,200.00
3-5 Days
SLD1410P Support Documentation
SLD1410P5 mW SLD, CWL = 1400 nm, 98 nm 3 dB BW, 30 dB Isolation, Butterfly Pkg., PM Fiber, FC/APC
$2,350.00
3-5 Days
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1450 nm CWL Superluminescent Diodes for OCT


Item #a SLD1450x
Parameter Min Typ. Max
Operating Current - 500 mA 600 mA
Center Wavelength (CWL)b 1435 nm 1450 nm 1465 nm
Spectral Shape Near Gaussian
ASE Powerc,d 23 mW 25 mW -
Optical 3 dB Bandwidthc 50 nm 54 nm -
RMS Gain Ripplec,e - 0.06 dB 0.35 dB
Fiber Type SMF-28e (SM)
Corning® PM15-U40A (PM)
Performance Graphs (Click Icons for Plots)
Output Spectrum
Optical Spectrum
SM		 Optical Spectrum
PM
LIV Plot
LIV Curves
SM		 LIV Curves
PM
Gain Ripplee

SM
PM
  • Additional specifications are available by clicking on the Specs tab above.
  • The center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the Specs tab above for details.
  • Specification given at the operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.1 nm
  • 1450 nm Superluminescent Diodes with 54 nm Typical 3 dB Bandwidth
  • 25 mW Typical Fiber-Coupled Output Power
  • Extremely Low Typical Gain Ripple

This superluminescent diode is designed to be used in OCT Systems that require an illumination source with extremely low gain ripple of 0.06 dB (RMS) and a relatively flat spectrum over a 54 nm wide 3 dB bandwidth. It is available with a minimum fiber-coupled output power of 23 mW.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD1450S Support Documentation
SLD1450S25 mW SLD, CWL = 1450 nm, 54 nm 3 dB BW, Butterfly Pkg., SM Fiber, FC/APC
$2,030.88
3-5 Days
SLD1450P Support Documentation
SLD1450P25 mW SLD, CWL = 1450 nm, 54 nm 3 dB BW, Butterfly Pkg., PM Fiber, FC/APC
$2,250.44
3-5 Days
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1610 nm CWL Superluminescent Diodes for OCT

Item #a SLD1610x
Parameter Min Typ. Max
Operating Current - 800 mA 900 mA
Center Wavelength (CWL)b 1590 nm 1610 nm 1630 nm
Spectral Shape Near Gaussian
ASE Powerc,d 22 mW 27 mW -
Optical 3 dB Bandwidthc 50 nm 57 nm -
RMS Gain Ripplec,e - 0.2 dB 0.5 dB
Fiber Type SMF-28e (SM)
Corning® PM15-U40A (PM)
Performance Graphs (Click Icons for Plots)
Output Spectrum
Optical Spectrum
SM		 Optical Spectrum
PM
LIV Plot
LIV Curves
SM		 LIV Curves
PM
Gain Ripplee

SM
PM
  • Additional specifications are available by clicking on the Specs tab above.
  • The center wavelength is defined by an average weighted by relative amplitude and may not correspond to the peak power or FWHM center wavelength. See the Specs tab above for details.
  • Specification given at the operating current. At the minimum ASE power, the minimum 3 dB bandwidth is guaranteed.
  • Corresponds to the output of the fiber pigtail.
  • Measurement Resolution = 0.1 nm
  • 1610 nm Superluminescent Diodes with 57 nm Typical 3 dB Bandwidth
  • 27 mW Typical Fiber-Coupled Output Power
  • Extremely Low Typical Gain Ripple

This superluminescent diode is designed to be used in OCT Systems that require an illumination source with extremely low gain ripple of 0.2 dB (RMS) and a relatively flat spectrum over a 57 nm wide 3 dB bandwidth. It is available with a minimum fiber-coupled output power of 22 mW.

Note that the specifications in the table to the right are given as guidelines. The characterization sheet shipped with each SLD provides the minimum, maximum, and recommended operating parameters and specifications specific to that device. Note that the bandwidth will decrease as the current is decreased; bandwidth specifications to the right are specified at the operating current.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLD1610 Support Documentation
SLD161027 mW SLD, CWL = 1610 nm, 57 nm 3 dB BW, Butterfly Package, SM Fiber, FC/APC
$1,938.00
3-5 Days
SLD1610P Support Documentation
SLD1610P27 mW SLD, CWL = 1610 nm, 57 nm 3 dB BW, Butterfly Package, PM Fiber, FC/APC
$2,193.00
3-5 Days
Additional OCT Components
  • MEMS-VCSEL Swept Sources

  • Superluminescent Diodes for OCT

  • Galvo Mirror Systems

  • Holographic Grating Spectrometer for OCT

  • OCT Balanced Detectors

  • OCT Interferometers

  • Scan Lenses for OCT Systems

  • OCT Fiber Collimators

  • Optical Isolators

  • OCT Fiber Components

  • Fiber Polarization Management

  • Test Targets, Calibration Targets, and Reticles

  • ScienceDesk Anti-Vibration Tables for Microscopy