Fiber Bragg Grating (FBG)

  • High mechanical strength FBGs
  • Hydrogen darkening resistant variants
  • Radiation-induced attenuation resistant variants
  • UV photodarkening resistant variants
  • Flexible spectral characteristics

Typical Applications:

  • Temperature sensing
  • Strain sensing
  • Hydrophone and geophone acoustic sensing
  • Laser wavelength locking
  • Wavelength division multiplexing

Fibercore provides Fiber Bragg Gratings (FBG’s) using targeted techniques on a variety of fibers with different optical coatings to meet the myriad of applications that exist with FBG’s. FBG’s are used for strain sensing, temperature sensing, acoustic sensing, accelerometers, chemical sensing, humidity sensing, and many others as well. Fibercore’s expertise is lining up the right technology of FBG with our specialized optical fibers to provide the optimum performance for the attribute of interest. Contact Fibercore for further information.

    Product Variants Explained
    UV Written FBGFBG written with a UV laser.
    Femtosecond FBGHigh reliability FBG written with a femtosecond laser.
    Central Wavelength (nm) 970 - 1620
    Wavelength Tolerance (nm) ±0.5 (standard)
    ±0.25 (optional)
    Reflectivity (%) 1 - 99
    FWHM Bandwidth (nm) 0.1 - 3
    FBG Length (mm) 1 - 25
    FBG Profile Uniformed or Apodized
    Chirp Not chirped (standard)
    Chirped (optional)
    FBG Arrays Optional
    Fiber Type SM, PM
    Fiber Cladding Diameters (μm) 125, 80, 60, 50
    Fiber Core Composition Germanium Doped
    Technical Bulletins