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Optical Engineering

Fiber Bragg grating laser sensor
Author(s): Andreas Othonos; A. Tino Alavie; Serge Melle; Shawn E. Karr; Raymond M. Measures
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Paper Abstract

An erbium-doped fiber laser utilizing a broadband mirror as the end reflector and an intracore Bragg grating as the output coupler is designed and developed. This arrangement is used as a laser sensor to improve interrogation efficiency of intracore Bragg gratings over broadband sensor interrogation methods. Wavelength tuning of the fiber laser has been achieved by varying the temperature and strain on the Bragg grating, demonstrating an improved SNR with respect to the previous techniques that use broadband interrogation of the Bragg grating sensor.

Paper Details

Date Published: 1 November 1993
PDF: 6 pages
Opt. Eng. 32(11) doi: 10.1117/12.147704
Published in: Optical Engineering Volume 32, Issue 11
Show Author Affiliations
Andreas Othonos, Univ. of Toronto (Canada)
A. Tino Alavie, Univ. of Toronto (Canada)
Serge Melle, EG&G Opto Electronics Canada (United States)
Shawn E. Karr, Univ. of Toronto (Canada)
Raymond M. Measures, Univ. of Toronto (Canada)


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