%0 Journal Article %T Radiation Effects on Ytterbium- and Ytterbium/Erbium-Doped Double-Clad Optical Fibers %+ Département de Conception et Réalisation des Experimentations, CEA-DIF (DCRE CEA) %+ Laboratoire Hubert Curien (LHC) %+ IxFiber SAS (IxFiber) %+ DAM Île-de-France (DAM/DIF) %+ Sandia National Laboratories [Albuquerque] (SNL) %+ TRIUMF [Vancouver] %A Girard, Sébastien %A Ouerdane, Y. %A Tortech, B. %A Marcandella, C. %A Robin, T. %A Cadier, B. %A Baggio, J. %A Paillet, P. %A Ferlet-Cavrois, V. %A Boukenter, A. %A Meunier, J.-P. %A R. Schwank, J. %A R. Shaneyfelt, M. %A E. Dodd, P. %A W. Blackmore, E. %< avec comité de lecture %@ 0018-9499 %J IEEE Transactions on Nuclear Science %I Institute of Electrical and Electronics Engineers %V 56 %N 6 %P 3293-3299 %8 2009-12-18 %D 2009 %R 10.1109/TNS.2009.2033999 %K Color centers %K erbium %K gamma %K optical fibers %K protons %K radiation effects %K ytterbium %Z Physics [physics]/Physics [physics]/Optics [physics.optics]Journal articles %X We characterize by different spectroscopic techniques the radiation effects on ytterbium-(Yb) and ytterbium/erbium (Yb/Er)-doped optical fibers. Their vulnerability to the environment of outer space is evaluated through passive radiation-induced attenuation (RIA) measurements during and after exposure to 10 keV X-rays, 1 MeV gamma-rays, and 105 MeV protons. These fibers present higher levels of RIA (1000 x) than telecommunication-type fibers. Measured RIA is comparable for gamma-rays and protons and is on the order of 1 dB/m at 1.55 mu m after a few tenths of a kilorad. Their host matrix codoped with aluminum (Al) and/or phosphorus (P) is mainly responsible for their enhanced radiation sensitivity. Thanks to the major improvements of the Er-doped glass spectroscopic properties in case of Yb-codoping, Yb/Er-doped fibers appear as very promising candidates for outer space applications. In the infrared part of the spectrum, losses in P-codoped Yb-doped fibers are due to the P-1 center that absorbs around 1.6 mu m and are very detrimental for the operation of Er-codoped devices in a harsh environment. The negative impact of this defect seems reduced in the case of Al and P-codoping. %G English %L ujm-00457967 %U https://ujm.hal.science/ujm-00457967 %~ UNIV-ST-ETIENNE %~ CEA %~ IOGS %~ CNRS %~ LAHC %~ PARISTECH %~ DAM %~ UDL