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Proceedings Paper

Fiber-optic Fabry-Perot sensor based on graded-index multimode fiber: numerical simulations and experiments
Author(s): Yuan Gong; Tian Zhao; Yun-Jiang Rao; Yu Wu; Yu Guo
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Paper Abstract

Numerical simulations based on the ray-transfer-matrix (RTM) method is realized for explaining the principle of a graded-index multimode fiber (GI-MMF) based hybrid fiber Fabry-Perot (GI-FFP) sensor. It is verified by the numerical simulations and experimental results that the high fringe contrast of the reflective spectrum of the sensor is due to the periodic focusing effect of the GI-MMF. Experimental results are in good agreement with the theory. A typical GI-FFP sensor is fabricated and its response to the external refractive index is measured with a maximum sensitivity of ~160 dB/RIU.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775315 (17 May 2011); doi: 10.1117/12.884856
Show Author Affiliations
Yuan Gong, Univ. of Electronic Science and Technology of China (China)
Tian Zhao, Univ. of Electronic Science and Technology of China (China)
Yun-Jiang Rao, Univ. of Electronic Science and Technology of China (China)
Yu Wu, Univ. of Electronic Science and Technology of China (China)
Yu Guo, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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