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FFC-100 Fiber Frequency Comb
FFC-100 octave-spanning, fully stabilized fiber frequency comb
Features:
- Turn-key operation
- 1560 nm center wavelength
- >30 mW in supercontinuum
- Low phase & amplitude noise
- A single 2U 19″ rack-mounted enclosure
- ƒrep monitoring, control, and matching
- Input port for ƒopt
- Repetition rates from 80 MHz to 250 MHz
- Made in America
Applications:
- Time & frequency keeping & transfer
- Frequency ruler
- Dual- & multi-comb spectroscopy
- Quantum sensing, computing, & cryptography
- Low-phase noise rf generation
The FFC-100 from Vescent Photonics is a fully stabilized octave-spanning frequency comb with precise control over the repetition rate (ƒrep), optical reference (ƒopt), and the carrier envelope offset frequency (ƒCEO). It is built around the Vescent MLL-100 Mode-Locked Laser, a stand-alone erbium-based femtosecond MOPA. A highly non-linear fiber broadens the spectrum and our unique ƒCEO lock detection reduces the size, weight, and power of the system. The complete FFC-100 frequency comb is designed and built to ensure stable, low-phase noise operation with Allan Deviations supporting the next generation of optical atomic clocks.
The FFC-100 was designed for low SWaP and turn-key, stable operation: A single 2U 19” rack mount chassis contains the oscillator, amplifier, pump lasers, supercontinuum generation module, and ƒCEO detection and lock as well as the control electronics.
The simple oscillator mode locks at startup every time and the innovative passive SESAM mode-locker is specially designed for a robust, long life. Our unique oscillator design also makes it easy to precisely factory match the repetition rate of two (or more) FFC-100 combs for multi-comb spectroscopy experiments.
US Patent 11,462,881
The FFC-100 is made in America
FFC-100 Specifications
| Parameter | Min. | Typ. | Max. | Units | Comments |
| Center Wavelength | 1555 | 1565 | 1575 | nm | |
| Repetition Rate | 100 | 200 | MHz |
100 or 200 MHz Contact factory for other repetition rates. |
|
| Optical Powers | All connectora PM FC/APC | ||||
| Oscillator Average Output Power | 0.01 | mW | >15 nm optical bandwidth | ||
| Amplifer Average Output power | 5 | mW | >30 nm optical Bandwidth | ||
| Supercontinuum Output Power | 20 | mW | 1000-2000 nm spectrum | ||
| RF Outputs | All connectors SMA | ||||
| ƒCEO Signal-to-Noise Ratio | 35 | dB | 100 kHz RBW | ||
| ƒCEO Integrated Phase Noise | 1 | rad | 10 Hz-1 MHz | ||
| ƒCEO Frequency Stability2 | 5.0x10-17/r | Unitless | in-loop Allan Deviation | ||
| ƒopt Optical Input Power | 1 | mW | |||
| ƒopt Signal-to-Noise Ratio3 | 40 | dB | 100 kHz RBW | ||
| ƒopt Integrated Phase Noise3 | 300 | mrad | 10 Hz-1 MHz | ||
| ƒopt Frequency Stability2,3 | 2.5x10-17/r | Unitless | in-loop Allan Deviation | ||
| ƒrep Output Power Level | 0 | dBm | |||
| Frequency Transducers | |||||
| ƒCEO Tuning Range | 100 | MHz | Pump Current Tuning | ||
| ƒCEO Input Voltage Tuning Range | -10 | +10 | V | SMA Input | |
| ƒrep PZT Tuning Range | 30 | Hz | Depends on Repetition Rate. See temperature tuning spec allows for larger changes in ƒrep | ||
| ƒrep Input Voltage Tuning Range | 0 | +6 | V | SMA Input | |
| ƒrep Temprature Tuning Range | 25 | kHz | Touchscreen Control4 | ||
| ƒrep Temprature Tuning Sensitivity | 0.5 | kHz/°C | Depends on Repetition Rate | ||
| Size, Weight, and Power | |||||
| Line Voltage | 90 | 250 | VAC | 50/60Hz | |
| Power Consumption | 50 | W | |||
| Weight | 5.5 | kg | |||
| Size | 12.3 | L | 2U rack mount, 43.5 cm Width x 10.5 cm Height x 27 cm Depth |
1 Does not include the SLICE-FPGA controller, which is sold separately.
2 Allan Deviation from zero-dead-time L counter with 1s gate time.
3 Depends on user-supplied optical reference. Data given for 1 kHz 1560 nm reference laser with >0.1 mW input power when phase locked with a SLICE-FPGA.
4 Allows access to a slow servo correction mode that automatically changes oscillator cavity temperature so that the PZT is centered in its operating range.
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