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Fiber-optic Bragg-grating differential-temperature sensor

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2 Author(s)
Kersey, A.D. ; US Naval Res. Lab., Washington, DC, USA ; Berkoff, T.A.

A differential temperature sensor based on fiber-optic Bragg-grating elements is described. A high sensitivity to thermally induced Bragg wavelength shifts is obtained using an interferometric detection approach. Results presented show a temperature resolution of <0.05 degrees C, corresponding to a Bragg wavelength shift resolution of <6*10/sup -4/ nm.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:4 ,  Issue: 10 )