Thermal bleaching of gamma-induced-defects in optical fibers

A. Morana (1, 2) , A. Boukenter (2) , Y. Ouerdane (2) , Sébastien Girard (3) , M. Cannas (1) , J. Perisse (4) , J. R. Macé (4)

1 DIPARTIMENTO DI SCIENZE FISICHE ED ASTRONOMICHE, UNIVERSITà DI PALERMO - Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo
2 LHC - Laboratoire Hubert Curien [Saint Etienne]
3 DCRE CEA - Département de Conception et Réalisation des Experimentations, CEA-DIF
4 AREVA

Ge-doped and F-doped gamma-irradiated fibers with a maximum accumulated dose of 10 MGy were subjected to isochronal annealing treatments up to 750°C. The thermal treatment influence on the point defect generation and transformation were investigated through Radiation Induced Attenuation (RIA) changes in the visible and IR spectral domains. The thermal bleaching of gammainduced-defects depends on both temperature and composition of optical fibers.

Keywords: silica; fiber; radiation; thermal treatment; optical measurement

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

A. Morana, A. Boukenter, Y. Ouerdane, Sébastien Girard, M. Cannas, et al.. Thermal bleaching of gamma-induced-defects in optical fibers. Si02 Advanced Dielectrics and Related Devices, Jun 2012, Hyères, France. pp.49-50. ⟨ujm-00732499⟩