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Proceedings Paper

Long-distance fiber-optic point-sensing systems based on the second-order random fiber laser
Author(s): Zinan Wang; Yunjiang Rao; Han Wu; Peiyun Li; Weili Zhang
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Paper Abstract

The novel concept of utilizing the second-order random fiber laser (RFL) to realize long-distance fiber-optic pointsensing systems is proposed. The sensing system consists of a pump laser, a fiber Bragg grating (FBG) at the pump side and 100km single mode fiber (SMF), and another FBG at the end of the SMF. The first FBG is used to enhance the lasing efficiency, and the second FBG is use as the remotely-located sensing head. The Bragg wavelengths of the two FBGs correspond to the first-order and the second-order random lasing spectrum, respectively. Its ability for remote temperature sensing is experimentally demonstrated.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84215C (17 October 2012); doi: 10.1117/12.975255
Show Author Affiliations
Zinan Wang, Univ. of Electronic Science and Technology of China (China)
Yunjiang Rao, Univ. of Electronic Science and Technology of China (China)
Han Wu, Univ. of Electronic Science and Technology of China (China)
Peiyun Li, Univ. of Electronic Science and Technology of China (China)
Weili Zhang, Univ. of Electronic Science and Technology of China (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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