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Rad-hard FBG
FBG, DFB & Photosensitive Fibers
Radiation hardened FBG for sensing and filtering applications
Our radiation-hardened Fiber Bragg Gratings (FBGs) are ideal for diagnostic and wavelength selection devices operating in harsh radiation environments. These FBGs are inscribed in a specially designed radiation-hardened optical fiber that minimizes end-of-life optical losses. Our proprietary FBG manufacturing process ensures excellent spectral response stability under combined radiation exposure (X-rays, γ-rays, neutrons, and protons) as well as at high temperatures.
Our technology has been field-proven up to the MGy range and temperatures of 350 °C. These FBGs are also suitable for space missions (up to 63 MeV protons) and nuclear reactor environments, with radiation resistance up to ~5 × 10¹⁹ n/cm².
Features
- Based on proprietary Exail low Radiation Induced Attenuation (RIA) fiber: 150 dB/km up to 10 MGy (γ-dose) at high dose rate
- Stabilized optical response in harsh environement thanks to dedicated FBG manufacturing process : suppression of radiation wavelength shift
- Field tested: temperature sensing with 1°C accuracy up to MGy level and up to 350°C obtained using IXC-FBG-RAD components
- Discrete point sensing, FBG-based mirror
- Strain sensors and wavelength selective mirrors for harsh environments
- FBG suitable for Tokamak environment
- Nuclear environment
- High energy physics
- Space
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