Demodulation of a weak fiber Bragg grating array using a fiber delay line

被引：5

作者：

Ding, Peng ^{[1
]}

Liu, Wen ^{[2
]}

Gu, Hongcan ^{[2
]}

Wang, Yunyun ^{[2
]}

Wu, Jing ^{[3
]}

Huang, Junbin ^{[2
]}

Tang, Jinsong ^{[1
]}

机构：

[1] Naval Univ Engn, Coll Elect Engn, Wuhan 430033, Peoples R China

[2] Naval Univ Engn, Dept Weapon Engn, Wuhan 430033, Peoples R China

[3] Naval Univ Engn, Dept Operat Res & Programming, Wuhan 430033, Peoples R China

来源：

APPLIED OPTICS | 2020年 / 59卷 / 08期

基金：

中国国家自然科学基金;

关键词：

HIGH-REFLECTIVITY; INTERROGATION; LASER;

D O I：

10.1364/AO.382131

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the use of a fiber delay line (FDL) to demodulate a weak fiber Bragg grating (WFBG) array. The FDL is composed of a fiber-ring cavity, by which the delay time is matched with the interval length of the adjacent WFBGs. Two pulses reflected by the former WFBG with delay and a pulse reflected by the rear WFBG without delay overlap and interfere. The emitted sounds can be given by the interference signals of a 5-WFBG array with the FDL. Using the FDL, it is demonstrated that the simple structure can be used to demodulate the WFBG array. (C) 2020 Optical Society of America

引用

页码：2325 / 2328

页数：4

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