FC1500-ULNⁿᵒᵛᵃ
(Ultra Low Noise Optical Frequency Comb)
Ultra-Low-Noise Optical Frequency Comb Based on PM Erbium-Doped Fiber Laser
The FC1500-ULNⁿᵒᵛᵃ is Menlo System’s latest optical frequency comb synthesizer for ultimate performance.
The core of the new model consists of a redesigned comb oscillator, based on the patented ultra-low-noise (ULN) figure 9® mode locking technology.
The enhanced design of this so-called “nova”-oscillator results in significantly improved robustness against acoustical distortion and thermal drift.
The major benefit is a reduced free running linewidth of only 15 kHz. Owing to this leap in linewidth reduction, the FC1500-ULNⁿᵒᵛᵃ has proven to support a frequency stability on the 10-19 level for 1 s averaging time!
Ever increasing demands for stability and accuracy of time and frequency signals require improved frequency references.
But even the best optical references have very limited spectral coverage.
The FC1500-ULNⁿᵒᵛᵃ overcomes these limitations by transferring the spectral purity of a stable reference to the entire wavelength range of 500-2000 nm.
This unique feature enables the users to compare different (optical) frequency references, stabilize all CW lasers to one absolute frequency reference and use it as a clockwork for optical clocks.
The overall frequency stability is evaluated in an out of loop comparison between two independent optical frequency combs, which is integral part of the quality check during factory acceptance of each system.
Features
- Lowest Phase Noise
- High Repetition Rate
- High Bandwidth >1 MHz Actuators for CEO and Repetition Rate
- Fully Fiber-coupled CEO Frequency Generation
- Turnkey Metrology System Fully Automated,
Including Data Evaluation Software, Designed for Continuous Operation
Key Specifications
- Comb Spacing 250 MHz
- Accuracy 10⁻¹⁷ (τ >100 s)
- Stability: 1 x 10⁻¹⁶ in 1 s, 1 x 10⁻¹⁸ in 1000 s
- Operational Range from 500 nm to 2 µm
- Integrated Phase Noise <100 mrad [100 Hz-2 MHz]
Applications
- FTIR Spectroscopy
- Calibration of Lasers
- High Precision CW Laser Stabilization
- Transfer of CW Laser Stability to Full Comb Spectrum
- Cold Atoms and Ions
- High Resolution Spectroscopy
- Low-noise Microwave Generation
Options
Complete Solution with Modular Extensions
Menlo Systems Optical Frequency Combs are complete solutions. The modular system architecture allows for easy additions of more functionality to an existing system. Multiple extensions can be combined in a system.
- PLUS: Add-On for ultimate performance for a selected wavelength
- M-Mid-IR: Extension Package
- M-NIR: Extension Package
- M-VIS: Extension Package
- HMP: High Power Measuring Port
- P250 PM Pulse EDFA: Erbium-doped Fiber Amplifier
- M-780: High Power output around 780 nm
- BDU: Beat Detection Unit
- LLE-SYNCRO: Laser Locking Electronics
- Microwave: Ultrastable RF Output
- GPS: -based 10 MHz Frequency Reference
- WLM-NIR /WLM-VIS: Integrated Wavelength Meters
Specifications
Requirements
| Input Requirements | cw optical reference, power level approx.1 mW (see Menlo ORS-Compact datasheet) 10 MHz frequency reference, power level +7 dBm |
| Operating Voltage | 100/115/230 VAC |
| Frequency | 50 to 60 Hz |
| Power Consumption | <500 W, <3kW including chiller |
| Cooling Requirements | closed cycle chiller included |
| Operating Temperature | 22 ± 5 °C |
| Optical Unit Dimensions/Weight | 706 x 716 mm, approx. 80 kg (Standard system configuration) |
| Control Electronics Dimensions/Weight | 600 x 800 mm, approx. 140 kg (Standard system configuration) |
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