Radiation effects on Yb- and Er/Yb-doped optical fibers: A micro-luminescence study

B. Tortech (1) , Y. Ouerdane (1) , Sébastien Girard (2) , J.-P. Meunier (1) , A. Boukenter (1) , T. Robin (3) , B. Cadier (3) , P. Crochet (3)

1 LHC - Laboratoire Hubert Curien
2 DCRE CEA - Département de Conception et Réalisation des Experimentations, CEA-DIF
3 IxFiber - IxFiber SAS

The integration of rare-earth doped optical fibers as part of fiber-based systems in space implies the development of waveguides tolerant to the radiation levels associated with the space missions. Erbium (Er)- or Ytterbium/Erbium (Yb/Er)-doped fibers have been shown to be very sensitive to ionizing radiations. Radiations lead to a strong increase of the fiber attenuation around the pump and amplified signal wavelengths. In this paper, we investigate by confocal luminescence microscopy the radiationinduced spectroscopic changes on prototype Yb- or Yb/Er-doped optical fibers. The set of tested fibers allows us to provide new insights into the relative influence of the P, Al doping on the radiation responses of their silica-based host matrix and on the transitions between the energy states of rare-earth ions.

Mots clés: Optical fibers; Luminescence

Domaines: Optique [physics.optics]

B. Tortech, Y. Ouerdane, Sébastien Girard, J.-P. Meunier, A. Boukenter, et al.. Radiation effects on Yb- and Er/Yb-doped optical fibers: A micro-luminescence study. Journal of Non-Crystalline Solids, 2009, 355, pp.1085-1088. ⟨10.1016/j.jnoncrysol.2009.01.055⟩. ⟨ujm-00394028⟩