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Proceedings Paper

The fiber-optic displacement sensor based on the DBR fiber laser
Author(s): Guoyu Li; Yan Li; Kang Yang; Mingsheng Liu
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Paper Abstract

The fiber-optic displacement sensor based on the distributed Bragg reflector fiber laser is proposed, that is, the fiber laser cavity is attached to the measured object, when the measured object is stretched or contracted, and the length of the fiber laser cavity is changing too. In view of nonlinearity of the fiber-optic displacement sensor, the calibration based on piezoelectric ceramics is applied to improve the linearity of the displacement sensor. Experiment results show that the fiber-optic displacement sensor has a linear response with the nominal working distance of 90 μm. Furthermore, the fiber-optic displacement sensor may realize the dynamic measurement.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842144 (17 October 2012); doi: 10.1117/12.970259
Show Author Affiliations
Guoyu Li, Handan College (China)
Yan Li, Handan College (China)
Kang Yang, Handan College (China)
Mingsheng Liu, Handan College (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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