Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source

G. A. Cranch; Gordon M. H. Flockhart; C. K. Kirkendall

doi:10.1117/12.623816

23 May 2005 Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source (Invited Paper)

G. A. Cranch, Gordon M. H. Flockhart, C. K. Kirkendall

Author Affiliations +

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623816
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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/Hz^1/2 up to 100 Hz.

Citation Download Citation

G. A. Cranch, Gordon M. H. Flockhart, and C. K. Kirkendall "Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source (Invited Paper)", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623816

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