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Proceedings Paper

Investigation on upper limit of dynamic range of fiber optic interferometric sensors base on the digital heterodyne demodulation scheme
Author(s): Nan Zhang; Zhou Meng; Wei Rao; Shuidong Xiong
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Paper Abstract

The upper limit of dynamic range (ULDR) of the fiber optic interferometric sensors (FOIS) based on the digital heterodyne demodulation scheme is investigated in this paper. According to the analysis of the demodulation process, the ULDR is restricted by two factors: the heterodyne frequency and the digital orthogonal demodulation algorithm. We discuss the influence of both the factors on the ULDR respectively in detail and give the total ULDR of the FOIS system. Experiments with the different delayed heterodyne scheme are conducted to verify the theoretical analysis and the results are consistent with the analysis conclusion.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421BE (7 November 2012); doi: 10.1117/12.975121
Show Author Affiliations
Nan Zhang, National Univ. of Defense Technology (China)
Zhou Meng, National Univ. of Defense Technology (China)
Wei Rao, National Univ. of Defense Technology (China)
Shuidong Xiong, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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