Design of a single-multimode-single-mode filter demodulator for fiber Bragg grating sensors assisted by mode observation.
We propose a simple analysis of a single-multimode-single-mode fiber (SMSMF) filter by observing the excited modes in multimode fiber (MMF). The method is used to design a SMSMF filter demodulator for fiber Bragg grating sensors, and a corresponding demodulation system is created. The static and dynamic measurements based on the system are given to prove the feasibility of the intensity demodulator.
Zhang
Jianzhong
J
College of Sciences, Harbin Engineering University, Harbin 150001, China. zhangjianzhong@hrbeu.edu.cn
Sun
Weimin
W
Yuan
Libo
L
Peng
Gang-Ding
GD