Optical Reference Systems
- Ultrastable Optical Reference System
- Sub-Hz Linewidth
- High-Finesse Cavity
ORS1500 Vacuum Chamber Detail
ORS1500
Optical Reference System
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Jason Reeves Menlo Systems |
Feedback? Questions? Need a Quote? Please note that the Optical Reference Systems are available directly from Menlo Systems, Inc. within the United States and from Menlo Systems GmbH outside the United States. |
United States Phone: +1-973-300-4490 Email: ussales@menlosystems.com |
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Outside United States Phone: +49-89-189166-0 Email: sales@menlosystems.com |
Applications
- Local Oscillator for an Optical Clock
- Ultra-High-Precision Spectroscopy
- Low-Noise Microwave Generation
- Ultrastable Frequency Transfer via Fiber Networks
- Frequency Metrology
- Tests of Fundamental Physics
Features
- State-of-the-Art Linewidth (<1 Hz) and Stability (<2 x 10-15 Hz)
- Compact Footprint (600 mm x 600 mm)
- Fully Characterized by Menlo Systems Against Another Optical Reference System
- Available with CW Fiber Laser (ORS1500) or MOGLabs Cateye External Cavity Laser Diode (ORS-DL)
- Polarization-Maintaining, Fiber-Coupled Output
- Custom Systems Available on Request
- Optional Add-Ons:
- Stabilization of Output Power
- Doppler-Cancelled Fiber Link
- Active Residual Amplitude Modulation Reduction Scheme
Menlo Systems' Optical Reference Systems (ORS) deliver an optical output with ultra-narrow linewidths and outstanding short-term stability. The ORS1500 contains a CW fiber laser, while the ORS-DL contains a MOGLabs external cavity diode laser. In both cases, the laser is locked to a stable, high-finesse cavity made of ultra-low-expansion glass.
The ORS uses a high-vacuum chamber with temperature stabilization and vibrational and acoustic isolation to deliver state-of-the-art linewidth and stability. The compact design allows for integration into a 19" rack system for convenient use in the lab. Additionally, the system design includes a mechanical locking feature which allows the system to be transported without the need to re-adjust the beam coupling into the cavity.
Item # | ORS1500 | ORS-DL |
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Performance Specifications | ||
Wavelength | 1542 nm or 1064 nma | 657 nm, 689 nm, 698 nm, or 729 nma,b |
Stabilized Output Power | >5 mW | >10 mW |
Temperature of Minimal Thermal Expansion | >20 °C | |
Finesse | ~250 000 | |
Linewidth | <1.0 Hz | |
Stability (Allan Deviation, at 1 s) | <2 x 10-15 (Linear Drift Removed) | |
Linear Drift Rate | Approx. 150 mHz/s | |
Environmental Specifications | ||
Input Requirements | 110 - 230 VAC | |
Line Frequency | 50 to 60 Hz | |
Optical Unit Dimensions / Weight | 600 mm x 600 mm x 800 mm / 150 kg (23.6" x 23.6" x 31.5" / 330 lbs) |
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Control Electronics Dimensions / Weight | 19" Rack Unit, 12U / 20 kg (44 lbs) |
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