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Proceedings Paper

Fiber Bragg grating sensors array based on optical frequency domain reflectometry technology
Author(s): Yanling Xiong; Lijuan He; Tao Chen; Xuan Wang; Wenlong Yang
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Paper Abstract

In this paper, the optimized Fiber Bragg Grating Sensor Arrays system, which was based on Optical Frequency Domain Reflectometry(OFDR) Multiplexing and Fabry-Perot Tunable Optical Filter(TOF) Demodulation Technology was Introduced, that FBG sensors in the same operating waveband can be used in different beat frequencies positions was proposed, and then a simulation was made for this proposition. As a result, in the case of duty ratio of the modulation signal w=1, the maximum amplitude B=4OMHz, and saw-tooth frequency fs=5kHz,the maximum measurement range can reach 4000m and , the minimum resolution can be reduced to 2.58m. In addition, A/D converting circuits and a DSP COMS chip were suggested to be designed for the function of frequency mixing, wavelength filtering and Fast Fourier Transform so that instead of expensive frequency analyzer, so that the system cost can be reduced.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65952L (5 March 2007); doi: 10.1117/12.725888
Show Author Affiliations
Yanling Xiong, Harbin Univ. of Science and Technology (China)
Lijuan He, Harbin Univ. of Science and Technology (China)
Tao Chen, Harbin Univ. of Science and Technology (China)
Xuan Wang, Harbin Univ. of Science and Technology (China)
Wenlong Yang, Harbin Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III

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