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Proceedings Paper

Fiber laser sensor interrogation system development and test
Author(s): Zhihui Sun; Jinyu Wang; Jun Chang; Jiasheng Ni; Li Min; Chang Wang; Gangding Peng
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Paper Abstract

The development and test of the fiber laser interrogation system is demonstrated in this paper. Unbalanced Michelson interferometer and digital phase-generated carrier (PGC) demodulation are adopted by the interrogation system. Interferometric interrogation principle and overall interrogation system are described. The interrogation system consists of digital PGC demodulation algorithm, data acquisition, photodiode amplifier and low-pass filter, PGC phase carrier generation and unbalanced Michelson interferometer. Realization methods and the performance of the above system components are discussed in detail. In order to simulate the wavelength shift induced by measurand, a standard wavelength shift signal generator is set up and its frequency response is tested. Interrogation experiment of acoustics signal in water is carried out, and the frequency response of the uncoated DFB fiber laser is obtained.

Paper Details

Date Published: 30 January 2012
PDF: 9 pages
Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 83513E (30 January 2012); doi: 10.1117/12.915967
Show Author Affiliations
Zhihui Sun, Laser Institute of Shandong Academy of Sciences (China)
Jinyu Wang, Laser Institute of Shandong Academy of Sciences (China)
Jun Chang, Shandong Univ. (China)
Jiasheng Ni, Laser Institute of Shandong Academy of Sciences (China)
Li Min, Laser Institute of Shandong Academy of Sciences (China)
Chang Wang, Laser Institute of Shandong Academy of Sciences (China)
Gangding Peng, The Univ. of New South Wales (China)


Published in SPIE Proceedings Vol. 8351:
Third Asia Pacific Optical Sensors Conference
John Canning; Gangding Peng, Editor(s)

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