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Proceedings Paper

Bragg fiber laser sensor
Author(s): A. Tino Alavie; Andreas Othonos; Serge Melle; Kexing Liu; Raymond M. Measures
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Paper Abstract

A tunable erbium fiber laser which utilizes a broadband mirror and an intracore Bragg grating reflector in a side-pump configuration is designed and developed. This arrangement is used as a laser sensor which greatly enhances the performance of a recently developed wavelength demodulation system by University of Toronto Institute for Aerospace Studies. Sensor design parameters for optimal performance in terms of the fiber laser geometry, doped fiber length, and the required pump energies are presented. Laser tuning with temperature has been achieved and shows much improvement in the SNR with respect to the previous techniques, i.e., interrogation of the Bragg grating sensor with a broadband source.

Paper Details

Date Published: 5 March 1993
PDF: 10 pages
Proc. SPIE 1795, Fiber Optic and Laser Sensors X, (5 March 1993); doi: 10.1117/12.141244
Show Author Affiliations
A. Tino Alavie, Univ. of Toronto and The Ontario Laser and Lightwave Research Ctr. (Canada)
Andreas Othonos, Univ. of Toronto and The Ontario Laser and Lightwave Research Ctr. (Canada)
Serge Melle, Univ. of Toronto and The Ontario Laser and Lightwave Research Ctr. (Canada)
Kexing Liu, Univ. of Toronto and The Ontario Laser and Lightwave Research Ctr. (Canada)
Raymond M. Measures, Univ. of Toronto and The Ontario Laser and Lightwave Research Ctr. (Canada)


Published in SPIE Proceedings Vol. 1795:
Fiber Optic and Laser Sensors X
Eric Udd; Ramon P. DePaula, Editor(s)

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