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Proceedings Paper

64-element fiber laser sensing system with interferometric interrogation
Author(s): Junbin Huang; Hongcan Gu; Bo Tang; Xin Mao
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Paper Abstract

We have developed a 64-element fiber laser sensing system based on 8 wavelength and 8 space division multiplexing. The array consists of four 980nm pump source which illuminate eight group distributed feedback fiber lasers(DFB FL) and eight optical switches which addressing in turns. The wavelength shifts of the DFB FL are converted to phase changes by routing the reflected signal through a nearly path balanced fiber Michelson Interferometer(MI). Through introducing an improved symmetric phase recovering method based on a 3×3 coupler, the influence of light intensity and splitting ratio is decreased. A 64 channels real-time synchronous demodulation system has been realized based on FPGA.

Paper Details

Date Published: 25 October 2016
PDF: 6 pages
Proc. SPIE 9686, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices, 96861S (25 October 2016); doi: 10.1117/12.2243140
Show Author Affiliations
Junbin Huang, Naval Univ. of Engineering (China)
Hongcan Gu, Naval Univ. of Engineering (China)
Bo Tang, Naval Univ. of Engineering (China)
Xin Mao, Naval Univ. of Engineering (China)


Published in SPIE Proceedings Vol. 9686:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices
Yadong Jiang; Bernard Kippelen; Junsheng Yu, Editor(s)

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