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Proceedings Paper

How sensitive is the fibre laser strain sensor?
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Paper Abstract

It is known that the strain resolution of fibre laser sensors is determined by frequency noise of the laser sensor element. We compare the frequency noise of a number of distributed feedback fibre laser sensors and find that all exhibit similar dominant 1/f noise below 10kHz. Examination of current theories of thermodynamic noise and 1/f noise in fibre lasers suggests that these lasers may be close to the theoretical limits of strain sensitivity.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043J (16 May 2008); doi: 10.1117/12.785936
Show Author Affiliations
Scott Foster, Defence Science and Technology Organisation (Australia)
Geoffrey A. Cranch, SFA Inc. (United States)
Alexei Tikhomirov, Defence Science and Technology Organisation (Australia)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors
David Sampson; Stephen Collins; Kyunghwan Oh; Ryozo Yamauchi, Editor(s)

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