FC1500-250-ULN
Ultra Low Noise Optical Frequency Comb
The FC1500-250-ULN Ultra Low Noise Optical Frequency Comb is a compact and versatile fiber-based metrology system. Laser operation relies on the figure 9® mode locking technology, which ensures excellent stability and low-noise operation. The femtosecond laser is ready-to-use at the press of a single button, and automatic phase lock loops ensure easy stabilization to either a RF or an optical reference. Thanks to the mature system design, users report long-term uninterrupted operation. With a variety of extension packages and add-ons, systems are exactly tailored to the individual experimental requirements.
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 FC1500-250-ULN 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 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. Choose between two variants, depending on the stability and accuracy that you require in your lab.
FEATURES
■ 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
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
SPECIFICATIONS FC1500-250-ULN VARIANT 1 FC1500-250-ULN VARIANT 2 Comb Spacing 250 MHz 250 MHz Accuracy 1 x 10-16 (t >100 s)*,
1 x 10-14 (t >1000 s)Δ1 x 10-17 (t >100 s)*,
1 x 10-14 (t >1000 s)ΔStability ≤5 x 10-16 in 1 s*,
≤5 x 10-17 in 1000s*,
≤5 x 10-13 in 1 sΔ≤1 x 10-16 in 1 s*,
≤1 x 10-18 in 1000s*,
≤5 x 10-13 in 1 sΔIntegrated Phase Noise <100 mrad [100 Hz-2 MHz] <100 mrad [100 Hz-2 MHz] Linewidth <<1 Hz** <<1 Hz** Tuning Range of Spacing
Between Individual Comb Lines >2 MHz >2 MHz Tuning Range of CEO Frequency >250 MHz >250 MHz Laser Outputs five fiber-coupled,
linearly polarized,
PM output portsfive fiber-coupled,
linearly polarized,
PM output portsCenter Wavelength 1560 nm 1560 nm Spectral Range >25 nm (500-1050 nm with M-VIS, 1050-2100 nm with M-NIR) >25 nm (500-1050 nm with M-VIS, 1050-2100 nm with M-NIR) Average Output Powe >12 mW from each laser port
(>60 mW with M-VIS, >
200 mW with M-NIR)>12 mW from each laser port
(>60 mW with M-VIS,
>200 mW with M-NIR)
* phase lock to optical reference, rphase lock to RF reference, **limited by resolution bandwidth of analyzer
Requirements
| Input Requirements | 10 MHz frequency reference, power level +7 dBm | - cw optical refeence, power level approx.1 mW (see Menlo ORS and ORS-Cubic datasheet) - 10 MHz frequency reference power level +7 dBm |
| Operating Voltage | 100/115/230 VAC | 100/115/230 VAC |
| Frequency | 50 to 60 Hz | 50 to 60 Hz |
| Power Consumption | <500 W | <500 W, <3kW including chiller |
| Cooling Requirements | no water cooling required | - <500 W, <3kW including chiller - closed cycle chiller included |
| Operating Temperature | 22 ± 5 °C | 22 ± 5 °C |
| Optical Unit Dimensions/Weight | 706 x 716 mm, approx. 80 kg*** | 706 x 716 mm, approx. 80 kg*** |
| Control Electronics Dimensions/Weigh | 600 x 800 mm, approx. 140 kg*** | 600 x 800 mm, approx. 140 kg*** |
***Standard system configuration
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