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Proceedings Paper

Laser induced sub-micron changes of the chemical composition of SiO2-based optical fibers
Author(s): Michael A. Fokine
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Paper Abstract

A method to create sub-micron changes of the chemical composition of silica based optical fibers is reviewed. The method is used to create thermally stable refractive index structures, Fiber Bragg gratings, which can be used e.g. as sensors operating at very high temperatures. The method is based on UV induced chemical reactions of the silica glass with in-diffused molecular hydrogen. A change in the chemical composition is attained after thermal treatment, and the mechanism is attributed to diffusion of hydrogen compounds within the glass.

Paper Details

Date Published: 18 November 2003
PDF: 10 pages
Proc. SPIE 5063, Fourth International Symposium on Laser Precision Microfabrication, (18 November 2003); doi: 10.1117/12.541170
Show Author Affiliations
Michael A. Fokine, Acreo (Sweden)


Published in SPIE Proceedings Vol. 5063:
Fourth International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Andreas Ostendorf; Koji Sugioka; Henry Helvajian, Editor(s)

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