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Proceedings Paper

Radiation effects on fiber amplifiers: design of radiation tolerant Yb/Er-based devices
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Paper Abstract

Rare-earth doped optical fibers have been shown to be very sensitive to radiations, limiting the integration of fiber-based systems in space missions. In this paper, we present the characterization of two amplifiers based on a set of prototype active Erbium/Ytterbium codoped double clad fibers developed by Ixfiber SAS. One of these fibers has been codoped with cerium inside its core to enhance its radiation tolerance whereas the other is a classical phosphosilicate Er/Yb fiber. The two amplifiers based on these fibers have been exposed to γ-rays at a low dose rate (0.3 rad/s) and to doses up to 90 krad. Previous studies indicated that Er/Yb amplifiers using this type of fiber suffered significant degradation for cumulated dose above 5-10 krad. We observed, on the contrary, that with our radiation hardened fiber, the degradation of the fiber amplifier's output power can be limited to less than 30% after an exposure dose of ~90 krad.

Paper Details

Date Published: 10 February 2011
PDF: 6 pages
Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79142P (10 February 2011); doi: 10.1117/12.875494
Show Author Affiliations
Sylvain Girard, CEA (France)
Arnaud Laurent, iXFiber SAS (France)
Marilena Vivona, iXFiber SAS (France)
Lab. Hubert Curien, CNRS, Univ. de Saint-Etienne (France)
Claude Marcandella, CEA (France)
Thierry Robin, iXFiber SAS (France)
Benoît Cadier, iXFiber SAS (France)
Aziz Boukenter, Lab. Hubert Curien, CNRS, Univ. de Saint-Etienne (France)
Youcef Ouerdane, Lab. Hubert Curien, CNRS, Univ. de Saint-Etienne (France)

Published in SPIE Proceedings Vol. 7914:
Fiber Lasers VIII: Technology, Systems, and Applications
Jay W. Dawson, Editor(s)

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