15 October 2013 Intensity-modulated strain sensor based on fiber Mach-Zehnder interferometer employing core-offset
Author Affiliations +
Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 89240X (2013) https://doi.org/10.1117/12.2034250
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China
Abstract
A novel intensity-modulated strain sensor based on a fiber in-line Mach-Zehnder interferometer is proposed and demonstrated, which is constructed by splicing a thin core fiber between two single mode fibers with a core offset. Such an interferometer exhibits a large fringe visibility of more than 15 dB. When used in axial strain sensing from 0 to 400 με, the interferometer operates at intensity mode of detection with a high sensitivity of -0.023 dB/μεwithout the cross sensitivity between temperature and strain. Its ease of fabrication, high strain sensitivity and intensity mode of detection makes it a low-cost alternative to existing sensing applications.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jiangtao Zhou, Changrui Liao, Yiping Wang, Kaiming Yang, Xiaoyong Zhong, Zhengyong Li, Yingjie Liu, Guangjun Wang, "Intensity-modulated strain sensor based on fiber Mach-Zehnder interferometer employing core-offset", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240X (15 October 2013); doi: 10.1117/12.2034250; https://doi.org/10.1117/12.2034250
PROCEEDINGS
4 PAGES


SHARE
Back to Top