FFC-100 Fiber Frequency Comb

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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.

FFC Allan Deviation

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.

American flag

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


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