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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 ƒrep, ƒopt, and 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.

The FFC-100 is
made in America
Supercontinuum Performance | |
Optical Bandwidth | >1,000 nm |
Average Power | >30 mW |
ƒCEO Performance | |
Signal-to-noise | >35 dB |
Linewidth | <200 kHz (typical <125 kHz) |
In-loop Allan Deviation | <10-16/√τ |
Oscillator Performance | |
Center Wavelength | 1560 ± 10 nm |
Oscillator Monitor Output Power | >5 mW |
Bandwidth | >10 nm |
Nominal Repetition Rate1 | 80, 100, 200, 250 MHz |
Electrical Pump Power Modulation Bandwidth2 | 1 MHz |
Polarization Extinction Ratio | ≥20 dB |
Optical Outputs | |
Supercontinuum, Oscillator, and Amplifier | PC/APC PM 1550 fiber (key aligned to slow axis) |
Repetition Rate Control | |
Computer Control3 | 1-5 ppm |
PZT Modulation Control Input Range3,4 | 0.3-1 ppm |
PZT Control Transfer Function3 | 15-50 ppb/V |
PZT Control Bandwidth5 | >100 kHz |
Temperature Control Range6 | 300 ppm |
Temperature Control Transfer Function | 10 ppm/°C |
Temperaure Set Point Resolution | <0.1 mK |
Repetition Rate Stability7 | <1 ppm/°C |
Monitor Outputs | |
ƒrep | |
RF Bandwidth | 500 MHz |
RF Power | >-10 dBm |
ƒopt | |
RF Bandwidth | >50 MHz |
RF Power | >-40 dBm |
ƒCEO | |
RF Bandwidth | >50 MHz |
RF Power | >-40 dBm |
Oprical Output | Oscillator and/or amplifier power |
Physical Properties | |
Power Input | 100-240 VAC; 50-60 Hz |
Power Consumption | <40 W |
Dimensions8 | 19" rack mountable: 19" x 10" x 2U |
All specifications subject to change without notice.
1Can be factory tuned to within 5 kHz
2Loop bandwidth limited by Er:fiber to ~30 kHz
3Depends on nominal repetition rate
40-100 V input
5Small signal (±10 V range centered at nominal set point)
6Assuming 40°C range
7With respect to room temperature
8Includes all electro-optical components and drivers, but not servo controllers