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Proceedings Paper

Multiplexing architectures for fiber laser strain sensors employing intracore Bragg gratings
Author(s): Shawn E. Karr; A. Tino Alavie; Shang Yuan Huang; Andreas Othonos; Raymond M. Measures
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Paper Abstract

An area of concern for erbium doped Fiber Laser Sensors (FLS) has been the issue of `cost per sensor'. To address this issue and promote the FLS as a viable sensor system, techniques for multiplexing intracore Bragg gratings in serial and parallel fiber laser architectures are presented. These configurations allow multiple lasing lines to be supported using a single 980 nm pump. The architectures are examined in terms of power requirements, complexity, and strain sensitivity. Simultaneous tracking of multiple sensors subject to either temperature or strain variations has been achieved and the data is presented. Preliminary results indicate a low level of crosstalk between sensors.

Paper Details

Date Published: 7 February 1994
PDF: 10 pages
Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); doi: 10.1117/12.166858
Show Author Affiliations
Shawn E. Karr, Univ. of Toronto (Canada)
A. Tino Alavie, Univ. of Toronto (Canada)
Shang Yuan Huang, Univ. of Toronto (Canada)
Andreas Othonos, Univ. of Toronto (Canada)
Raymond M. Measures, Univ. of Toronto (Canada)


Published in SPIE Proceedings Vol. 2072:
Fiber Optic Physical Sensors in Manufacturing and Transportation
John W. Berthold; Richard O. Claus; Michael A. Marcus; Robert S. Rogowski, Editor(s)

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