23 May 2005 Effect of high dose rate irradiations on COTS optical fibres
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Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005); doi: 10.1117/12.624042
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium
Abstract
Commercial off-the-shelf (COTS) single-mode and multimode germanosilicate optical fibres are intended for use as part of control-command applications in the future Laser Megajoule facility. We evaluated their vulnerability to the radiative environment associated to this project by characterizing their transient radiation responses at infrared wavelengths (1064, 1310 and 1550 nm) after high dose rate exposure (> 108 Gy/s). Our results showed that these COTS fibres exhibit very different transient responses (10-9 s to 1 s after pulse) and permanent damages (times > 1s), depending on the wavelength of transmitted signal and on their compositions. Presented results could be used to define several choices to ensure the functionality of these applications for both shortest times after a shot (10-9 to 103 s) and during the whole LMJ lifetime (30 years).
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Sylvain Girard, Jacques Baggio, Martial Martinez, "Effect of high dose rate irradiations on COTS optical fibres", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624042; https://doi.org/10.1117/12.624042
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KEYWORDS
Optical fibers

Commercial off the shelf technology

X-rays

Cladding

Absorption

Germanium

Laser applications

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