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We investigated the radiation hardening of optical fiber amplifiers operating in space environments. Through a real-time analysis in active configuration, we evaluated the role of Ce in the improvement of the amplifier performance against ionizing radiations. Ce-codoping is an efficient hardening solution, acting both in the limitation of defects in the host glass matrix of RE-doped optical fibers and in the stabilization of lasing properties of the Er3+-ions. On the one hand, in the near-infrared region, radiation induced attenuation measurements show the absence of radiation induced P-related defect species in host glass matrix of the Ce-codoped active fibers; on the other hand, in the Ce-free fiber, the higher lifetime variation shows stronger local modifications around the Er3+-ions with the absence of Ce.
International Society for Optics and Photonics
Publication date: 
20 Nov 2017

Marilena Vivona, Sylvain Girard, Claude Marcandella, Emmanuel Pinsard, Arnaud Laurent, Thierry Robin, Benoît Cadier, Marco Cannas, Aziz Boukenter, Y Ouerdane

Biblio References: 
Volume: 10564 Pages: 105641H
International Conference on Space Optics—ICSO 2012