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Proceedings Paper

High temperature multiparameter sensor
Author(s): R. B. Walker; D. Grobnic; S. J. Mihailov; P. Lu
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Paper Abstract

Spectral characteristics of fiber Bragg gratings are affected by both strain and temperature. While this makes gratings useful for sensing, care must be taken to ensure adequate discrimination between spectral shifts associated with strain and those due to changes in temperature. Recently, monitoring of cladding modes has been utilized for this purpose. In this paper, such measurement capabilities are evaluated at high temperature by exploiting the characteristics of Type II femtosecond infrared written gratings, achieving similar responsivity with significantly improved thermal durability.

Paper Details

Date Published: 23 February 2011
PDF: 12 pages
Proc. SPIE 7934, Optical Components and Materials VIII, 79340D (23 February 2011); doi: 10.1117/12.875241
Show Author Affiliations
R. B. Walker, Communications Research Ctr. Canada (Canada)
D. Grobnic, Communications Research Ctr. Canada (Canada)
S. J. Mihailov, Communications Research Ctr. Canada (Canada)
P. Lu, Communications Research Ctr. Canada (Canada)

Published in SPIE Proceedings Vol. 7934:
Optical Components and Materials VIII
Michel J. F. Digonnet; Shibin Jiang; John W. Glesener; J. Christopher Dries, Editor(s)

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