Title :
UV-photoinduced defects in Ge-doped optical fibers
Author :
Messina, F. ; Cannas, M. ; Médjahdi, K. ; Boukenter, A. ; Ouerdane, Y.
Author_Institution :
Dipartimento di Sci. Fisiche ed Astron., Palermo Univ., Italy
Abstract :
We investigated the effect of continuous-wave (cw) UV laser radiation on single-mode Ge-doped H2-loaded optical fibers. An innovative technique was developed to measure the optical absorption (OA) induced in the samples by irradiation, and to study its dependence from laser fluence. The combined use of the electron spin resonance (ESR) technique allowed the structural identification of several radiation-induced point defects, among which the Ge(1) (GeO4) is found to be responsible of induced OA in the investigated spectral region.
Keywords :
germanium; hydrogen; laser beam effects; optical fibre testing; paramagnetic resonance; photoluminescence; point defects; ultraviolet radiation effects; UV-photoinduced defects; electron spin resonance; laser fluence; optical absorption; radiation-induced point defects; single-mode Ge-doped H2-loaded optical fibers; Fiber lasers; Glass; Luminescence; Optical fibers; Optical harmonic generation; Optical materials; Paramagnetic resonance; Spectroscopy; Temperature; Yarn;
Conference_Titel :
Fibres and Optical Passive Components, 2005. Proceedings of 2005 IEEE/LEOS Workshop on
Print_ISBN :
0-7803-8949-2
DOI :
10.1109/WFOPC.2005.1462146
