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Proceedings Paper

High birefringence fibre interrogating interferometer for optical sensing applications
Author(s): D. C. C. Norman; Y. Lai; D. J. Webb
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Paper Abstract

We describe the use of high birefringence fibre forming a differential path interferometer for heterodyne fibre optic sensing applications. We firstly recover a low frequency strain amplitude of 1με at 1Hz applied to a fibre Bragg grating sensor demonstrating a noise limited resolution of around 100nε/√Hz. Secondly we interrogate a Mach-Zehnder interferometer sensor using the dual wavelength technique to detect a change in the Mach-Zehnder OPD of 200μm.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623270
Show Author Affiliations
D. C. C. Norman, Aston Univ. (United Kingdom)
Y. Lai, Aston Univ. (United Kingdom)
D. J. Webb, Aston Univ. (United Kingdom)

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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