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Proceedings Paper

A DFB fiber laser sensor system using a NI-Compact-RIO-based PGC demodulation scheme
Author(s): Yan Wang; Jun He; Lei Feng; Fang Li; Yu-liang Liu
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Paper Abstract

An eight-channel distributed feedback fiber laser (DFB FL) sensor system using phase generated carrier (PGC) demodulation scheme is described in this paper. This system employs an unbalanced Michelson interferometer to convert the measurands-induced laser wavelength shifts into the phase shifts. The digital PGC algorithm is realized on the Field Programmable Gate Array (FPGA) module of the commercialized NI-Compact RIO. The influence of the time delay between the interferometric signal and the PGC carrier is then investigated. Finally, the experimental system is setup to validate the analysis above.

Paper Details

Date Published: 24 August 2009
PDF: 6 pages
Proc. SPIE 7381, International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors, 73811O (24 August 2009); doi: 10.1117/12.835659
Show Author Affiliations
Yan Wang, Institute of Semiconductors (China)
Jun He, Institute of Semiconductors (China)
Lei Feng, Institute of Semiconductors (China)
Fang Li, Institute of Semiconductors (China)
Yu-liang Liu, Institute of Semiconductors (China)


Published in SPIE Proceedings Vol. 7381:
International Symposium on Photoelectronic Detection and Imaging 2009: Material and Device Technology for Sensors
Xu-yuan Chen; Yue-lin Wang; Zhi-ping Zhou; Qing-kang Wang, Editor(s)

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