Spectroscopic characterization of silica-based fibers using picosecond SRS technique

Igor V. Alexandrov; Gaston Melo Melchor

doi:10.1117/12.478274

3 July 2003 Spectroscopic characterization of silica-based fibers using picosecond SRS technique

Igor V. Alexandrov, Gaston Melo Melchor

Proceedings Volume 4974, Advances in Fiber Lasers; (2003) https://doi.org/10.1117/12.478274
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

In contrast to the traditional spectroscopic techniques, the picosecond stimulated Raman scattering (SRS) in fibers permits one to determine the anharmonicity constants for silica tetrahedron vibrations and local dopant vibrations. The results of new experiments using the technique of picosecond SRS excitation in pure and doped silica fibers are presented. Apart the fundamental Raman-active silica and dopant vibrations and their overtones the intense combination bands were detected. The comparative studies of undoped and erbium-doped silica fibers were made. When the photoinduced changes took place in a silica fiber core the distinct combination SRS bands were observed, whereas the presence of an erbium ions in silica network didn't disturb the SRS bands originated from silica tetrahedron vibrations.

Citation Download Citation

Igor V. Alexandrov and Gaston Melo Melchor "Spectroscopic characterization of silica-based fibers using picosecond SRS technique", Proc. SPIE 4974, Advances in Fiber Lasers, (3 July 2003); https://doi.org/10.1117/12.478274

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