Precision Electro-Optic and Laser Technologies

Menhir Photonics MENHIR-1550

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  • 1560 nm
  • <200 fs pulses
  • Ultra low-noise
  • Hermetically sealed laser
  • Transform-limited pulses
  • Compact industrial design
  • User-friendly
  • 24/7 operation
  • All-in-one system
Menhir-1550 phase noise graph

Low phase noise of the 250 MHz and 1 GHz laser models

New characterization publication:

Scott Diddams and his colleagues at NIST, the University of Colorado, and Menhir Photonics published a paper characterizing a 1 GHz frequency comb based on a Menhir-1550 mode-locked laser. ƒCEO was shown to have residual phase noise of 438 mrad and ƒopt residual phase noise was 40.6 mrad.

Download your copy here.


Menhir Photonics femtosecond laser sources are gigahertz lasers based on robust and well-engineered designs, offering excellent reliability with the low-noise performance from soliton mode-locking. Robust, 24/7 operation, user-friendly and self-starting, the MENHIR-1550 series has been made to facilitate OEM integration and enable customers applications.

The Menhir-1550 GHz laser provides control capability over the repetition rate and carrier envelope offset and so it can serve as the engine for a high-repetition rate frequency combs, THz wave generation, and low-phase noise microwave generation.

Do you need 80-250 MHz repetition rate, broader bandwidth, shorter pulses, or matched repetition rates?  We also offer the MLL-100 mode-locked laser.  And fully stabilized frequency comb performance is available from the FFC-100 Frequency Comb.

Vescent is the exclusive Distributor of Menhir high-repetition rate mode-locked lasers in the US and Canada. For more information, visit the Menhir site.


  • Frequency comb development
  • Optical Communication
  • Low-noise microwave generation
  • Timing synchronization
  • Terahertz (THz) generation
  • Fast A/D conversion
ParametersOscillator OnlyWith Amplifier
Optical Properties
Center Wavelength1560 ±10 nm
Pulsewidth<200 fs, transform limited
Spectral Bandwidth>12.5 nm (3 dB points)
Repetition Rate1250, 500 MHz, 1, 1.25, 2 or 2.5 GHz
Peak Power>0.1 kWup to 4 kW
Average Power>50 mWup to 2 W
Pulse Energy>0.05 nJup to 1 nJ
Optical Output2PM FC/APC
Beam QualityTEM00
M2 <1.05
Polarization StateLinear
PER >23 dB (>200:1)
Amplitude Noise<0.1% RMS (24 hr)
Timing Jitter3<30 fs
Physical Properties
Power Input45 VDC / 2 A24 VDC / 2 A
Power Consumption<10 W<50 W
CoolingPassively air-cooled
Warm Up Time10 s from cold start
Laser Head Size240 x 160 x 89 mm
Laser Head Mass5 kg
Operating Temperature+5 to +45°C
Storage Temperature-10 to +60°C
Relative Humidity<80% (Non-condensing)
Analog InterfacePower Modulation, Alarm, Interlock, Trigger, Status, etc.
Digital InterfaceUSB, RS232, Ethernet, CAN
Control UnitNo control unit required, All-in-one system
All specifications subject to change without notice
1Custom rep rates available from 200 MHz to 2.5 GHz, contact Vescent
2Free-space output available
3rms (1 kHz to 10 MHz)
4Power supply for 100 or 240 VAC can be provided as option
Custom modifications are available - Please inquire

Next Step:

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Additional Information:

Related Information:

      • Need 80-250 MHz repetition rate, broader bandwidth, shorter pulses, matched repetition rates?  The MLL-100 is the solution for that.
      • Fully stabilized frequency comb performance is available from the FFC-100.
      • Menhir website

Danger Laser Radiation, class IIIb