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Coatings for harsh environment
For more than a decade Exail has developed a unique know-how in the design of optical fibers in radiative environments such as nuclear power plants, high energy physics labs, nuclear waste repository sites and even all the way into space. Exail develops and maintains a comprehensive product line of fibers designed to fit many of such applications. Our fibers can be used for data transmission, sensing or experiment monitoring.
More fibers are available on stock and we have furthermore the ability to custom design your fiber based on your specific application. Do not hesitate to contact us with your specific technical requirements.
Features
Benefits
Low radiation induced attenuation- Low bending losses
- Chemical core compositions adapted to each radiative environment
- Large choice of coatings, including metallic coatings (Aluminum, Carbon + Copper)
- Outstanding mechanical protection
Applications
- Nuclear Environment
- High-energy physics
- Space
Products
Publications
Temperature Dependence of Radiation-Induced Attenuation of a Fluorine-Doped Single-Mode Optical Fiber at Infrared Wavelengths
IEEE Transactions on Nuclear Science ( Volume: 70, Issue: 4, April 2023) https://doi.org/10.1109/TNS.2023.3239986
In this paper, we report a similar systematic study performed, in the IR spectral domain, on a F-doped single-mode fiber, manufactured by Exail through the Modified Chemical Vapor Deposition (MCVD) proces
Temperature Dependence of Radiation-Induced Attenuation of a Fluorine-Doped Single-Mode Optical Fiber at Infrared Wavelengths
IEEE Transactions on Nuclear Science ( Volume: 70, Issue: 4, April 2023) https://doi.org/10.1109/TNS.2023.3239986
Toward Confocal Chromatic Sensing in Nuclear Reactors: In Situ Optical Refractive Index Measurements of Bulk Glass
IEEE Transactions on Nuclear Science ( Volume: 69, Issue: 4, April 2022) https://doi.org/10.1109/TNS.2022.3150221
Here, the optical fiber was a radiation-hardened (rad-hard) optical fiber made by Exail with an aluminum coating allowing its use up to 400°C.
Toward Confocal Chromatic Sensing in Nuclear Reactors: In Situ Optical Refractive Index Measurements of Bulk Glass
IEEE Transactions on Nuclear Science ( Volume: 69, Issue: 4, April 2022) https://doi.org/10.1109/TNS.2022.3150221
Radiation Effects on Pure-Silica Multimode Optical Fibers in the Visible and Near-Infrared Domains: Influence of OH Groups
Appl. Sci. 2021, 11(7), 2991 https://doi.org/10.3390/app11072991
For the present investigation, three MM optical fibers with pure silica cores, fluorine-doped claddings and polyimide coatings have been manufactured by Exail (Lannion, France).
Radiation Effects on Pure-Silica Multimode Optical Fibers in the Visible and Near-Infrared Domains: Influence of OH Groups
Appl. Sci. 2021, 11(7), 2991 https://doi.org/10.3390/app11072991
Combined effect of radiation and temperature: towards optical fibers suited to distributed sensing in extreme radiation environments
30th Conference on Radiation and its Effects on Components and Systems (RADECS 2019) – September 2019
Combined effect of radiation and temperature on the response of polyimide coated radiation hardened single-mode fibers is investigated in the context of distributed monitoring of large nuclear infrastructures. Radiation induced attenuation (RIA) is evaluated for doses ranging from 1 to 10 MGy(SiO2) and temperatures up to ~250 °C.
Combined effect of radiation and temperature: towards optical fibers suited to distributed sensing in extreme radiation environments
30th Conference on Radiation and its Effects on Components and Systems (RADECS 2019) – September 2019
Radiation resistant single-mode fiber with different coatings for sensing in high dose environments
IEEE Transactions on Nuclear Science – 10 December 2018
A radiation single-mode optical fiber has been specifically developed for distributed sensing in harsh environments associated with MGy(SiO2) dose radiation. Different types of coating have been used: acrylate, polyimide, aluminum that allow extending the range of accessible temperatures up to 400°C…
Radiation resistant single-mode fiber with different coatings for sensing in high dose environments
IEEE Transactions on Nuclear Science – 10 December 2018
Radiation hardened temperature measurement chain based on femtosecond laser written fbgs in a specific optical fiber
5th Workshop on Specialty Optical Fiber and Their Applications – October 2017
A radiation resistant temperature measurement chain based on femtosecond laser written FBGs is described. First results confirm a suitable design to withstand foreseen harsh nuclear envirnoment both in term of temperature and cumulated dose.
Radiation hardened temperature measurement chain based on femtosecond laser written fbgs in a specific optical fiber
5th Workshop on Specialty Optical Fiber and Their Applications – October 2017
