Femtosecond Mode-Locked Laser - MLL-100

The MLL-100 Femtosecond Mode-Locked Laser is a stable, all-fiber source of sub-100 fs pulses. High-bandwidth control over oscillator pump power and cavity length allow for stabilization of carrier envelope offset frequency (ƒCEO) and optical frequency (ƒopt) or repetition rate (ƒrep).

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Femtosecond Mode-Locked Laser - MLL-100

MLO-100 Mode-Locked sub-100 femtosecond Oscillator

Vescent’s The MLL-100 Femtosecond Mode-Locked Laser is a stand-alone femtosecond laser designed for ease of use and high performance. Built around an Er:doped fiber and an EDFA (Erbium Doped Fiber Amplifier), it will reliably deliver sub-100 fs pulses with a bandwidth of over 40 nm. The heart of the MLL-100 is our FO-100 Fiber Oscillator including a gain fiber, mode-locker, and our unique cavity length adjustment tool for exact repetition rate control (and matching). The MLL-100 houses the amplifier and pump diodes, current sources and temperature control, as well as the requisite drive electronics and user interface.

Designed for ease of use and performance, the MLL-100 Femtosecond Mode-Locked Laser’s combination of touch screen interface and rotary knob input makes for simple set up and control. Modulation and control of the pump power as well as fast and slow tuning of the repetition rate makes the MLL-100 Mode-Locked Laser ideal as the engine for your frequency comb development. The slow integrator controlling the precise temperature set point allows long-term repetition rate locking when combined with the fast PZT loop.

Designed for performance, the MLL-100 mode locked laser accepts a user-supplied pump-control input. Modulation and control of the pump power as well as fast (PZT) and slow (temperature) tuning of the cavity length makes our oscillator design ideal for frequency comb development.

PZT bandwidth of cavity length control

  • Applications include satellite-deployed GPS clocks, free-space time transfer, satellite formation flying


The MLL-100 is 100% made in America!

We also offer gigahertz repetition rate mode-locked lasers from Menhir Photonics.

US Patent 11,462,881

MLL-100 Mode-Locked Laser Characteristic

  • Master Oscillator Power Amplifier design
  • Repetition rates from 80 to 250 MHz
  • Fast and slow actuators for repetition rate control
    • Fast PZT actuator for cavity length
      •  >200 kHz bandwidth
      • 100 Hz stroke with 100 V tuning1
    • Slow TEC actuator for cavity length control
      • >1 Hz bandwidth
      • >10 kHz stroke with 10°C tuning1
  • Oscillator Current feedback
    • >30 kHz bandwidth
  • Matched repetition rates (requires less than 5°C temperature tuning of oscillators)
  • Integrated amplifier
  • Rack-mount and table-top packaging available with integrated electronics
Center Wavelength 1560±10 nm
Optical Bandwidth >40 nm
Average Power >100 mW
Pulsewidth ≤100 fs
Nominal Repetition Rate 100, 125, 200 MHz
Pump Power Modulation Bandwidth2 1 MHz
Repetition Rate Control
Computer Control 1-5 ppm
PZT Modulation Control Input Range 0.3-1 ppm
PZT Control Transfer Function 15-50 ppb/V
PZT Control Bandwidth >200 kHz
Temperature Control Range 300 ppm
Temperature Control Transfer Function 10 ppm/°C
Temperaure Set Point Resolution <0.1 mK
Repetition Rate Stability <1 ppm/°C
Monitor Outputs
RF Bandwidth 500 MHz
RF Power >-10 dBm
RF Bandwidth >50 MHz
RF Power >-40 dBm
Optical Output Oscillator and/or amplifier power
Physical Properties
Power Input 100-240 VAC; 50-60 Hz
Power Consumption <40 W
Dimensions 19" rack mountable: 19" x 10" x 2U

All specifications subject to change without notice.

1100 MHz repetition rate
2Bandwidth of the control electronics. ƒCEO stabilization bandwidth limited by Er:fiber to ~30 kHz