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DFB fiber laser

/ Laser diodes

The fiber lasers commercialized by IDIL Fibres Optiques are built around the design of a DFB (Distributed Feed Back) laser.

They use an Erbium or Ytterbium doped fiber on which a FBG (Fiber Bragg Grating) is written. By construction, this laser is naturally single-frequency. Such type of laser is then also tunable, via thermal control over several nm without any mode hopping. It is pumped, thanks a multiplexer, by a laser diode operating @ 980 nm.

  • Laser spectroscopy
  • Interferometry
  • Wavelength reference
  • Test and measure equipment for telecom applications Scientific applications
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Output powerUp to 10 mW
Available wavelength1020-1200 nm 1525-1610 nm
Wavelength stability±1 pm peak to peak
Output power stabilityDérive ≤ 5 %
Magnitude stability (20 kHz - 2 GHz)±1.5 % rms
SpectrumSingle-frequency FWHM ≤ 20 kHz
PolarisationLinear
Polarisation ratio> 25 dB
PackageOEM - Benchtop

The optical output is isolated in order to avoid any light feedback which could pertubate the laser. A PM type is also available.

The driver integrates three main functions : the power and temperature stabilisation of the pump laser diode, the temperature stabilisation of the DFB laser via a Proportional Integral and Derivative electronic for setting the right wavelength and the output power controller for the pump laser diode and DFB itself (drift management). Two output power diagnostics are available.

RS232 version is available only on benchtop laser.

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