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.
College of Sciences, Harbin Engineering University, Harbin 150001, China. zhangjianzhong@hrbeu.edu.cn
Jianzhong
J
Zhang
Weimin
W
Sun
Libo
L
Yuan
Gang-Ding
GD
Peng