Optromix Magius

Fiber Bragg Grating (FBG) writing station

Fiber Bragg Grating (FBG) writing station consists of:

  • Ultraviolet 257.2 nm fiber laser;
  • Optical table;
  • The air-filter box to dedust FBG writing station;
  • Mechanical and optical elements assembled with adjustment and control components to create a Lloyd scheme interference pattern on the optical fiber.

Technical specifications

Writing wavelength range, nm
Operation wavelength, nm
257.2 ± 0.2
Spectral linewidth, MHz
< 0.5
Frequency Stability (1 hr), MHz
< 500
Output power, mW
Beam quality, M2
Polarization ratio
Output power stability (1 hr)
< 1%
RMS noise in 20 kHz - 20 MHz band
< 0.5%
Electric power consumption, W
< 200


A single-frequency UV fiber laser system with unique specifications makes allows to apply any known FBG writing scheme.