Mode-Locked Technology Sp. z o.o., ul. Klecińska 123, 54-413 Wroclaw,Poland info@mode-locked.com

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ModeSeed

Product

ModeSeed is a compact, robust, mode-locked fiber oscillator built in all-fiber technology. Suited for most demanding scientific and industrial applications. It is available with a variety of optional extensions.

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  • Pulse repetition rate (frep): any chosen between 40 and 125 MHz
  • Central wavelength: 1560 nm +/- 10 nm, 1040 nm +/- 10 nm
  • Self-starting, maintenance-free, button-operated
  • Long lifetime
  • No saturable absorber
  • Single-box solution
Central wavelengths Output 1: 1560 nm +/- 10 nm, FWHM > 20 nm
Pulse repetition rate (frep) Chosen between 40 and 125 MHz (others upon request)
Output power > 10 mW at  frep = 100 MHz
Pulse duration Chirped or compressed (down to <100 fs depending on repetition rate)
Output type Fiberized (FC/APC connector)
Polarization Linear

Optional extensions

Option

Parameters
-AMP

All-fiber in-line amplifier integrated with the oscillator

 Output power: >100 mW

Pulse duration: <50 fs
– SMOSC

Intra-cavity stepper motor delay line for broadband repetition rate tuning

 frep tuning range: up to 2 MHz (@ frep = 100 MHz)

Step: 1 µm (others on request)
– PZTslow

Intra-cavity piezoelectric stretcher for repetition rate tuning

 Tuning range: >1.5 kHz (@ frep = 100 MHz)

Bandwidth: > 8 kHz

Input signal: 0 – 150V
– PZTfast

Intra-cavity piezoelectric stretcher for repetition rate tuning

 Tuning range: >40 Hz (@ frep = 100 MHz)

Bandwidth: > 10 kHz

Input signal: 0 – 150V
– EOMosc
Intra-cavity all-fiber electro-optical modulator for fast phase locking to an external reference. Driver included		  frep  tuning range: 200 Hz (@ frep = 100 MHz)

Bandwidth: > 150 MHz

Input signal: 10 Vpp
– EOMPDH
External all-fiber electro-optical modulator for generation of sidebands for Pound-Drever-Hall locking. Driver included		 Bandwidth: > 150 MHz

Input signal: 10 Vpp
– fCEO

Module for detection of the fCEO frequency of the laser. This option includes an additional modulation input of the oscillator’s current.

 fCEO tuning range: from 5 MHz to  frep

fCEO beat SNR: > 30 dB

Modulation input for the pump oscillator: 10 Vpp (Hi-Z), <500 kHz bandwidth

  • Optical spectrum generated from the main output (dB scale).

  • RF spectrum of the fREP monitor port: 4 MHz span, RBW = 1 kHz, no averaging.

  • RF spectrum of the fREP monitor port, 0V at the PZTslow (blue), 150V at PZTfast (purple).

  • RF spectrum of the fREP monitor port, 0V at the PZTfast (blue), 150V at PZTfast (purple).

  • RF spectrum of the fREP monitor port for 5 different settings of the stepper motor position, 4 MHz span, RBW = 1 kHz, no averaging.

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