ORS-Mini
(Ultrastable Laser System)
Rack-Mountable Ultrastable Laser with sub-Hz Linewidth and Excellent Frequency Stability
The rack-mountable ORS-Mini Ultrastable Laser System is designed for field applications and OEM integration.
It delivers ultra-narrow linewidth laser light with excellent frequency stability.
The system’s centerpiece is a high-finesse Fabry-Pérot cavity (cubic spacer with a length of 5 cm) serving as a reference for a CW laser.
The cavity is made out of ultra-low expansion glass (ULE) and is operated in vacuum at the point of zero thermal expansion.
The reference cavity is acoustically isolated allowing for excellent performance also in rough laboratory environments.
Rigid mounting of the cavity ensures portability without realignment of the optical paths.
The system electronics is based on the newest generation of Menlo Systems’ proprietary SYNCRO controller—a modular platform designed for versatility and intuitive use.
It incorporates all required electronics, e.g., a low-noise laser driver and a very fast (analog) servo loop for laser frequency stabilization.
The user controls all parameters using either the 7” front-panel touchscreen or a GUI on a remote PC.
The onboard software ensures automatic cavity locking and system monitoring.
Features
- Robust rack system
- Field-ready design
- OEM compatibility
- Lowest phase Noise
- Automated laser locking
Key Specifications
- Stability <3 x 10-15 at 1 s
- Linewidth <2 Hz
- Output Power >10 mW
- Wavelength 1535-1565 nm or 1061-1067 nm
Applications
- Quantum Computing
- Ultra-low Noise Microwave Generation
- Frequency Comb Stabilization
- High Resolution Spectroscopy
- Laser Cooling and Trapping
Specifications
| Wavelength | 1535-1565 nm or 1061-1067 nm |
| Stability (MADEV at 1 s, Linear Drift Removed) | <3 x 10⁻¹⁵ |
| Linewidth | <2 Hz |
Phase Noise (at 1550 nm*, Laser Source Dependent)
*Scaling accordingly for different carrier frequencies | at 1 Hz -5 dBc/Hz at 10 Hz -23 dBc/Hz at 100 Hz -45 dBc/Hz at 1000 Hz -65 dBc/Hz |
| Output Power | >10 mW (SC/APC Connector) |
| PDH Servo Bandwidth | approx. 1.5 MHz |
| Cavity Spacer | 5 cm, ULE, Cubic Design (Developed in Collaboration with the NPL, UK) |
| Free Spectral Range | 3 GHz |
| Linear Drift Rate | approx. 150 mHz/s after 12 months |
| Vibration Isolation Platform | Not Included |
| System Dimensions / Weight | 450 x 550 x 360 mm (8U) / 35 kg |
Requirements
| Operating Voltage | 100 / 115 / 230 VAC |
| Line Frequency | 50 to 60 Hz |
| Operating Temperature | 22 ± 5 °C |
| Power Consumption | <100 W |
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