Long-distance fiber-optic point-sensing systems based on the second-order random fiber laser

Zinan Wang; Yunjiang Rao; Han Wu; Peiyun Li; Weili Zhang

doi:10.1117/12.975255

17 October 2012 Long-distance fiber-optic point-sensing systems based on the second-order random fiber laser

Zinan Wang, Yunjiang Rao, Han Wu, Peiyun Li, Weili Zhang

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84215C (2012) https://doi.org/10.1117/12.975255
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

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.

Citation Download Citation

Zinan Wang, Yunjiang Rao, Han Wu, Peiyun Li, and Weili Zhang "Long-distance fiber-optic point-sensing systems based on the second-order random fiber laser", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84215C (17 October 2012); https://doi.org/10.1117/12.975255

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