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

被引:47
|
作者
Gu, Bobo [1 ,2 ]
Yuan, Wu [1 ]
Frosz, Michael H. [3 ]
Zhang, A. Ping [2 ]
He, Sailing [2 ]
Bang, Ole [1 ]
机构
[1] Tech Univ Denmark, DTU Foton, Dept Photon Engn, DK-2800 Lyngby, Denmark
[2] Zhejiang Univ, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Hangzhou 310058, Zhejiang, Peoples R China
[3] Max Planck Inst Sci Light, D-91058 Erlangen, Germany
关键词
PHOTONIC CRYSTAL FIBERS; REFRACTIVE-INDEX;
D O I
10.1364/OL.37.000794
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (C) 2012 Optical Society of America
引用
收藏
页码:794 / 796
页数:3
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