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

Bobo Gu | Zendy; Wu Yuan | Zendy; Michael H. Frosz | Zendy; A. Ping Zhang | Zendy; Sailing He | Zendy; Ole Bang | Zendy

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

Author(s) -

Bobo Gu,

Wu Yuan,

Michael H. Frosz,

A. Ping Zhang,

Sailing He,

Ole Bang

Publication year - 2012

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.37.000794

Subject(s) - materials science , optics , photonic crystal fiber , optical fiber , fiber optic sensor , graded index fiber , dispersion shifted fiber , polarization maintaining optical fiber , microstructured optical fiber , four wave mixing , refractive index , wavelength , nonlinear optics , optoelectronics , physics , laser

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 postprocessing of the fiber. Strain sensitivity of -0.23 pm/με is achieved experimentally and numerical simulations reveal that for the present fiber the sensitivity can be increased to -4.46 pm/με by optimizing the pump wavelength and power.

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