Fiber Bragg Gratings

/ Fiber sensors

IDIL Fibres Optiques provides a wide range of Fiber Bragg Gratings (FBG) designed according to customers’requirements.

IDIL Fibres Optiques can work from single-mode, multi-mode and polarization maintaining fibers and supply every type of connectors. Furthermore we calculate and design the profile of FBG. We also characterize and realize multiplexed FBG (cf opposite) with several gratings on the same optical fiber (from one to about twenty) which can be close as a few millimeters or separated by a few kilometers. Finally we offer athermal, small size and weight packaging.

Our FBG lead to numerous applications in the fields of optical sensors (temperature, strain, pressure…). Our technology is ideal for structural health monitoring of aircraft, buildings and dams; improving turbines and industrial equipment efficiency, detecting instabilities within tunnels and power plants, etc.


  • Complete interrogation solution (interrogator, software interface and sensors)
  • On-site installation, training and data acquisition
  • SM, MM and PM fibers & every types of connectors
  • Multiplexed FBG (typically up to 20)
  • Multi-parameters: temperature, strain, pressure, acceleration, displacement, etc.
  • Produce in clean room
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Wavelength From 1 µm to 1.8 µm
Spectral width From 100 pm to several tens nm
FBG packaging Acrylate recoat; composite, embedded, miniature polyimide, surface and weldable sensor
Fiber type SMF, MMF, PMF
Buffer 250 µm; 900 µm; 2.8 mm
Transmission From 1% to 99.9%
Connector FC, LC, SC, SMA, ST, MU, E2000, other
Power handling Up to 10 W
Calibration Possible
Number of sensors Single or multiple FBG (typical 20)
Operating temperature Typical: From -10°C to 120°C (FOS-TA) / higher: Please specify


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  • Structural health monitoring
  • Industrial improvement
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Fiber Bragg Gratings technology consist of selecting only a very precise wavelength thanks to an optical mirror which was firstly photo imprinted by UV beam pattern into an optical fiber.

When the optical fiber is stressed or when its temperature is modified, the wavelength varies proportionally.

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