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Proceedings Paper

Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source
Author(s): G. A. Cranch; Gordon M. H. Flockhart; C. K. Kirkendall
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Paper Abstract

An efficient multiplexing method for fiber Bragg grating sensors based on a broadband mode-locked laser source and interferometric interrogation is described. The system has the capability to interrogate several hundred fiber Bragg grating sensors on a single fiber, whilst achieving sub-microstrain resolution over bandwidths greater than 100 kHz. A demonstration system with 8 sensors is presented, which achieves strain resolutions less than 213 nε/Hz1/2 up to 100 Hz.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623816
Show Author Affiliations
G. A. Cranch, SFA, Inc. (United States)
Gordon M. H. Flockhart, SFA, Inc. (United States)
C. K. Kirkendall, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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