Strain sensing using a fiber-optic Bragg grating

Serge Melle; Kexing Liu; Raymond M. Measures

doi:10.1117/12.50184

1 December 1991 Strain sensing using a fiber-optic Bragg grating

Serge Melle, Kexing Liu, Raymond M. Measures

Proceedings Volume 1588, Fiber Optic Smart Structures and Skins IV; (1991) https://doi.org/10.1117/12.50184
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

This paper reports on the development of a passive, fast demodulation system for use with in-fiber Bragg gratings used for strain or temperature measurements. This compact, potentially inexpensive self-referencing system permits absolute strain/temperature measurements over a wide dynamic range with fast temporal response by tracking the wavelength shifts of the narrow-band back-reflected Bragg spectrum. The wavelength, bandwidth and strain sensitivity of a Bragg sensor are discussed, and examples of both static and dynamic strain measurements are shown.

Citation Download Citation

Serge Melle, Kexing Liu, and Raymond M. Measures "Strain sensing using a fiber-optic Bragg grating", Proc. SPIE 1588, Fiber Optic Smart Structures and Skins IV, (1 December 1991); https://doi.org/10.1117/12.50184

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