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Proceedings Article

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

[+] Author Affiliations
Sylvain Girard, Claude Marcandella

CEA (France)

Arnaud Laurent, Thierry Robin, Benoît Cadier

iXFiber SAS (France)

Marilena Vivona

iXFiber SAS (France) and Lab. Hubert Curien, CNRS, Univ. de Saint-Etienne (France)

Aziz Boukenter, Youcef Ouerdane

Lab. Hubert Curien, CNRS, Univ. de Saint-Etienne (France)

Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79142P (February 10, 2011); doi:10.1117/12.875494
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From Conference Volume 7914

  • Fiber Lasers VIII: Technology, Systems, and Applications
  • Jay W. Dawson
  • San Francisco, California, USA | January 22, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Sylvain Girard ; Arnaud Laurent ; Marilena Vivona ; Claude Marcandella ; Thierry Robin, et al.
"Radiation effects on fiber amplifiers: design of radiation tolerant Yb/Er-based devices", Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79142P (February 10, 2011); doi:10.1117/12.875494; http://dx.doi.org/10.1117/12.875494


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