Fiber-grating based strain sensor with phase sensitive detection

A. D. Kersey

doi:10.1117/12.2298037

1 May 1992 Fiber-grating based strain sensor with phase sensitive detection

A. D. Kersey

Proceedings Volume 1777, First European Conference on Smart Structures and Materials; 17770E (1992) https://doi.org/10.1117/12.2298037
Event: First European Conference on Smart Structures and Materials, 1992, Glasgow, United Kingdom

Abstract

A technique for the detection of dynamic strain inducedwavelength shifts in fiber Bragg grating sensors which is capable of highresolution sensing is described. The scheme is based on the use of anunbalanced-interferometer wavelength discriminator to transpose thewavelength shift of light reflected from a strained fiber grating into thephase shift of an electrical carrier signal.

Citation Download Citation

A. D. Kersey "Fiber-grating based strain sensor with phase sensitive detection", Proc. SPIE 1777, First European Conference on Smart Structures and Materials, 17770E (1 May 1992); https://doi.org/10.1117/12.2298037

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