Abstract
A high-sensitive fiber optic strain sensor system with low cost is demonstrated. The strain sensor is a microlens based high finesse Fabry-Perot interferometer, and a low-cost wavelength division coupler is used as a wavelength discriminator. A minor fluctuation of strain is changed to a power change at the output. Static strain and dynamic strain are successfully measured using the system. (C) 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53: 1491-1493, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26057
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