[WP4-C] Poster Session 2

[WP4-C14] A Wavelength Swept Laser-based Demodulation Method for Long-distance Fiber Bragg Grating Sensing

〇Jinxiang Sun¹, Zhiguo Zhang¹, Luming Li², Zhehao Yan¹, Rui Zhou¹, Tong Zhai¹, Jiangxing Chen², Xing Liu² (¹Beijing Univ. of Posts and Telecommunications, China, ²Jiangxi Electric Power Company, China)

Keywords:Long distance sensing, FBG demodulation, Rayleigh scattering, wavelength measurement

A novel long distance fiber Bragg grating (FBG) demodulation scheme which can eliminate the influence of Rayleigh scattering is proposed. It can detect changes of FBG reflection wavelengths 100km away with an accuracy about 20 pm.