Nonlinear fiber-optic strain sensor based on four-wave mixing in microstructured optical fiber

Bobo Gu, Scott Wu Yuan, Michael H. Frosz, A. Ping Zhang, Sailing He, Ole Bang

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Abstract

We demonstrate a nonlinear fiber-optic strain sensor, which uses the shifts of four-wave mixing Stokes and anti-Stokes peaks caused by the strain-induced changes in the structure and refractive index of a microstructured optical fiber. The sensor thus uses the inherent nonlinearity of the fiber and does not require any advanced post-processing of the fiber. Strain sensitivity of -0.23 pm/mu epsilon is achieved experimentally and numerical simulations reveal that for the present fiber the sensitivity can be increased to -4.46 pm/mu epsilon by optimizing the pump wavelength and power.
Original languageEnglish
JournalOptics Letters
Volume37
Issue number5
Pages (from-to)794-796
ISSN0146-9592
DOIs
Publication statusPublished - 2012

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-37-5-794. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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