Photonic Sensors, Volume. 4, Issue 1, 43(2014)
Fiber-Optic Displacement Sensor Based on the DBR Fiber Laser
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 also stretched or contracted accordingly. In view of the 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.
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Guoyu LI, Yan LI, Kang YANG, and Mingsheng LIU. Fiber-Optic Displacement Sensor Based on the DBR Fiber Laser[J]. Photonic Sensors, 2014, 4(1): 43
Received: Jul. 16, 2013
Accepted: Aug. 28, 2013
Published Online: Jan. 2, 2014
The Author Email: LI Guoyu (guoyu_li@foxmail.com)