SmartComb-ULN
(Compact Optical Frequency Comb Precision in Every Pulse)
Optical Frequency Comb with Ultra-low-noise Performance in a Compact Form Factor
All your comb applications at your fingertips:
Menlo Systems introduces its newest platform for metrology: The SmartComb-ULN, a compact, robust, high-end, and fully-automated Frequency Comb system. This turn-key, all-in-one device, built with Menlo Systems’ robust and reliable figure 9® fiber mode-locked oscillator technology, combines the unrivaled performance of our ultra-low-noise (ULN) frequency comb with a compact form factor of only 3 height units (3U) in a 19” rack format. 6 output ports are readily available to either directly interact with your application in the Er-band or seed spectral extensions and amplifiers, enabling experiments in the spectral range from 500 nm to 2100 nm. An input port for an optical lock at 1.5 μm is also included. The SmartComb-ULN ensures that spectral purity and stability are maintained throughout the entire covered spectral domain, making it ideal for use in both mobile and stationary applications, thus providing reliable performance for a wide range of scenarios. Furthermore, the underlying technology has already proven to be suitable for applications in demanding environments such as on-board aircraft and sounding rockets.
Features
- Wide Comb Mode Spacing
- High Actuator Bandwidth >1 MHz for Repetition Rate and CEO Frequency
- Fully Fiber-coupled CEO Frequency Generation
- Spectral Purity Transfer: Transfer of Optical Reference Stability to all Comb Modes
- 6 Output Ports
- Optical Measurement Input (1.5 μm)
- Internal 10 MHz OCXO Reference
Key Specifications
- Comb Mode Spacing 250 MHz*
- Accuracy <1 x 10⁻¹⁷ (τ > 100 s)
- Stability <5 x 10⁻¹⁷ in 1 s
- Turn-key, Fully Automated, Remotely Controlled, Continuous Operation
- Full Offset Frequency f₀ Tunability
*Others on Request
Applications
- Optical Clocks
- Quantum Applications
- High Precision CW Laser Stabilization
- Calibration of CW Lasers
- Length Metrology
- Cold and Trapped Atoms and Ions
- LIDAR
- Low-noise Microwave Generation
- High Resolution Spectroscopy
Options
- Compatible with all Amplifiers and Spectral Extensions, Delivering Light from 500 nm to 2100 nm
- GPS-based 10 MHz Frequency Reference
- Ultrastable Laser ORS-Mini-based Optical Input for Optical Locking
Complete Solution:
The turn-key, fully hands-off optical setup is integrated into a 19”, 3U rack unit and offers unprecedented performance for its compactness. Even the stability of the highest performance optical clocks can be fully transferred via spectral extensions to your application over the spectral range from 500 nm to 2100 nm.
Specifications
| Comb Mode Spacing | 250 MHz | |
| Central Wavelength | 1560 nm | |
| Average Power | >10 mW | |
| Spectral Width | >25 nm(FWHM) | >50 nm(-10 dB) |
| Stability* (MDEV) | <5 x 10⁻¹⁷ in 1s**, <5 x 10⁻¹⁸ in 1000 s** | <5 x 10⁻¹³ in 1 sᵟ |
| Accuracy | <1 x 10⁻¹⁷ for τ > 100 s** | <1 x 10⁻¹⁴ for τ > 100 sᵟ |
| Integrated Phase Noise | <50 mrad [100 Hz – 2 MHz ], < 90 mrad [1 Hz – 10 MHz] | |
| Tuning Range of Comb Mode Spacing | >4 MHz | |
| Tuning Range of CEO Frequency | Fully Flexible | |
| Optical Outputs | 6 | |
| Linewidth | <1 Hz** for all comb lines and all wavelength extensions |
*out-of-loop comb-comb-comparison
**phase lock to optical reference,
ᵟ phase lock to rf reference
System Facts
| Form Factor | 19” x 3U |
| Weight | <25 kg |
| Operating Voltage | 100…115 VAC or 230 VAC, 50…60 Hz |
| Power Consumption | <100 W |
| Operating Temperature | 25 ± 10 °C |
| Software | Includes full automation |
| Software Interfacing | Ethernet |
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