Alxenses Company Ltd.

Your Fiber Optics Sensor Partner

FBG (Fiber Bragg Grating) Array

November 23, 2012

FBG (Fiber Bragg Grating) Array

Alxenses’s Fiber Bragg Grating (FBG) array is produced using advanced fabrication technique to write many FBGs in a single strand of optical fiber without any splicing points. The mechanical strength of Alxenses’s FBG arrays is therefore significantly better than FBG arrays produced by slicing many FBG arrays produced by slicing many FBGs together. The high quality FBG array with customized wavelength and spacing allow distributed measurement over long distance. FBG arrays are particular suitable for large-scale sensing in strain, temperature or pressure monitoring in oil, gas, civil engineering, aviation and marine industries.


  • Low insertion loss
  • Spliceless FBG Array
  • Customized FBG array configuration
  • Accurate FBG wavelength and reflectivity


  • Large-scale strain and temperature monitoring in oil, gas, civil engineering, aviation and marine industries.

FBG Array Specifications

FBG Arrays ( Fiber Bragg Grating Array)
Parameters Values Units Data Sheet
Wavelength Range 1510~1590 nm
Wavelength Tolerance +/-0.5 nm
FBG length 3 5 10 15 mm
Reflectivity >70 >75 >90 >90 %
Bandwidth at 3dB <0.7 <0.7 <0.3 <0.3 nm
Side Lobe Suppress Ratio (SLSR) >15 dB
Mini Spacing 10 mm
Spacing Accuracy <5 mm
Coating & Recoating Material Acrylate or Polyimide --
Proof Test >100 kpsi
Fiber Type SMF-28 compatible / polyimide --
Fiber Termination Bare Fiber, FC/UPC, FC/APC --
Pigtail Length from FBG 1m / Customized length m
Operating Temperature -5 ~ +80 °C
Storage Temperature -40 ~ +85 °C

*Alxenses Company Limited reserves the right to make changes to the FBG Array products without notice.

For FBG and Sensor enquiry, please email to

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