Departure from linearity of fibre Bragg grating temperature coefficients

Authors
Publication date
1 January 2002
Publisher
'Institute of Electrical and Electronics Engineers (IEEE)'

Abstract

We have measured the Bragg wavelength shift of three gratings from -30degreesC to +80degreesC. The observed deviation from linearity is a quadratic function of temperature, arising from the non-linear thermo-optic coefficient of silica glass

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