Effect of high dose rate irradiations on COTS optical fibres

Sylvain Girard; Jacques Baggio; Martial Martinez

doi:10.1117/12.624042

23 May 2005 Effect of high dose rate irradiations on COTS optical fibres

Sylvain Girard, Jacques Baggio, Martial Martinez

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/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).

Citation Download Citation

Sylvain Girard, Jacques Baggio, and 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); https://doi.org/10.1117/12.624042

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