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Proceedings Paper

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

An intracore Bragg grating and a broadband reflector are used as cavity end mirrors of a tunable Erbium-doped fiber laser where the Bragg grating serves the dual purpose of the tuning element and the sensor. This fiber laser sensor (FLS) is integrated with a wavelength demodulation system (WDS) to form a practical strain and temperature sensor. Laser tuning with both temperature and strain have been achieved and the data is presented. To further promote practical applications of the FLS, a two element fiber laser sensor array has also been designed and developed. Preliminary data indicates excellent stability and no cross-talk.

Paper Details

Date Published: 12 July 1993
PDF: 11 pages
Proc. SPIE 1918, Smart Structures and Materials 1993: Smart Sensing, Processing, and Instrumentation, (12 July 1993); doi: 10.1117/12.147987
Show Author Affiliations
A. Tino Alavie, Univ. of Toronto, and The Ontario Laser and Lightwave Research Centre (Canada)
Shawn E. Karr, Univ. of Toronto, and The Ontario Laser and Lightwave Research Centre (Canada)
Andreas Othonos, Univ. of Toronto, and The Ontario Laser and Lightwave Research Centre (Canada)
Raymond M. Measures, Univ. of Toronto, and The Ontario Laser and Lightwave Research Centre (Canada)


Published in SPIE Proceedings Vol. 1918:
Smart Structures and Materials 1993: Smart Sensing, Processing, and Instrumentation
Richard O. Claus, Editor(s)

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