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Proceedings Paper

Toward ultralucent optical fibers
Author(s): Akira J. Ikushima; Kazuya Saito; Hiroshi Kakiuchida
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Paper Abstract

From infrared absorption spectra, the present authors elucidated behaviors of the structural relaxation in silica glass doped with various elements, and claim that sub-relaxation process exists besides the main-relaxation given by the viscous flow. Light scattering measurement also suggested the existence of such an additional relaxation channel. The sub- and main-structural relaxations are in general greatly accelerated by a proper dopant. And, the sub-relaxation, which extends below the glass transition temperature, gives a breakthrough to bring silica glass to a more stable structure even below the glass transition temperature. The sub-relaxation then reduces the Rayleigh scattering, a predominant component of the optical loss in the glass. Fluorine and chlorine seem to greatly accelerate the relaxations in silica glass.

Paper Details

Date Published: 29 October 2001
PDF: 12 pages
Proc. SPIE 4594, Design, Fabrication, and Characterization of Photonic Devices II, (29 October 2001); doi: 10.1117/12.446557
Show Author Affiliations
Akira J. Ikushima, Toyota Technological Institute (Japan)
Kazuya Saito, Toyota Technological Institute (Japan)
Hiroshi Kakiuchida, Toyota Technological Institute (Japan)

Published in SPIE Proceedings Vol. 4594:
Design, Fabrication, and Characterization of Photonic Devices II
Marek Osinski; Soo-Jin Chua; Akira Ishibashi, Editor(s)

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