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Studies on multi-wavelength fiber Bragg grating laser strain sensor

Authors:	Zuowei Yin Shengchun Liu Liang Zhang Xiangfei Chen

Affiliation:	^a The National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China ^b Institute of Fiber Optics, Heilongjiang University, Harbin 150080, China ^c The Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, China

Abstract:	A novel stable multi-wavelength fiber Bragg grating laser is achieved and its sensing characteristic with the strain is studied. The beat signals generated by the multi-wavelength fiber laser are measured under different strains. Four-wave mixing (FWM) is firstly observed in such a short-cavity fiber laser.

Keywords:	Beat frequency Four-wave mixing (FWM) Fiber laser strain sensor Nonlinear effect
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