Abstract
A pi(π)-shifted grating has been used as a passive strain sensor to achieve a resolution of 50 nanostrain (nε). The Pound-Drever-Hall frequency locking technique was used to obtain a stable signal at a distance of 50 km, paving the way for remote detection of sound, temperature and pressure at a long distance from sources of electricity.
© 2020 The Author(s)
PDF ArticleMore Like This
Swapnil Daxini, Deniz Aydin, Jack Barnes, and Hans-Peter Loock
Th4.69 Optical Fiber Sensors (OFS) 2022
Feisheng Wu, Jiageng Chen, Qingwen Liu, Shuangxiang Zhao, Bingxin Xu, and Zuyuan He
T3.64 Optical Fiber Sensors (OFS) 2020
T. A. Berkoff and A. D. Kersey
F23 Optical Fiber Sensors (OFS) 1992