Journal Published Online: 05 May 2020
Volume 49, Issue 1

Effects of Bending Radius and Fiber-Crack Angle on Polymer Optical Fiber Loss for Potential Application in Pavement Crack Monitoring

CODEN: JTEVAB

Abstract

This paper investigates the potential of polymer optical fiber (POF) in pavement crack monitoring. Firstly, the critical radius of macrobending and microbending of POF was analyzed theoretically. Then, the relationship between the bending loss and the bending radius was established and verified by experiments, and a reasonable bending radius was recommended. Subsequently, the POF was fixed on a simulated pavement with various fiber-crack angles, and the effect of fiber-crack angles on light loss was analyzed. The results showed that the optical loss decreased exponentially with the increase of the bending radius when the bending radius was less than 8 mm, but it changed slowly when the bending radius was more than 8 mm. The output optical power value was related to the initial fiber-crack angle and the bending radius. Under the same bending radius, the optical loss became greater if the initial fiber-crack angle was smaller.

Author Information

Xing, Xiangyang
School of Highway, Chang’an University, Shaanxi, China
Zhang, Jiupeng
School of Highway, Chang’an University, Xi’an, Shaanxi, China
Wang, Ling
School of Highway, Chang’an University, Shaanxi, China
Pei, Jianzhong
School of Highway, Chang’an University, Shaanxi, China
Chen, Xu
PowerChina International Group Limited, Beijing, China
Pages: 13
Price: $25.00
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Details
Stock #: JTE20190842
ISSN: 0090-3973
DOI: 10.1520/JTE20190842