Observation on temperature and strain dependency of Brillouin dynamic grating in a few-mode fiber with a ring-cavity configuration

被引：4

作者：

Liu, Yinping ^{[1
,2
]}

Yang, Guangyao ^{[1
,2
]}

Wang, Ning ^{[2
]}

Ma, Lin ^{[1
]}

Alvarado-Zacarias, J. C. ^{[2
]}

Antonio-Lopez, J. E. ^{[2
]}

Sillard, Pierre ^{[3
]}

Amezcua-Correa, A. ^{[3
]}

Amezcua-Correa, R. ^{[2
]}

Fan, Xinyu ^{[1
]}

He, Zuyuan ^{[1
]}

Li, Guifang ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China

[2] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA

[3] Parc Ind Artois Flandres, Prysmian Grp, F-62138 Douvrin, France

来源：

OPTICS LETTERS | 2020年 / 45卷 / 08期

基金：

中国国家自然科学基金;

关键词：

GENERATION; SENSOR;

D O I：

10.1364/OL.388739

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally conduct Brillouin dynamic grating (BDG) operation using a 1-km-long four-mode fiber. By employing a simplified ring-cavity configuration with single-end pumping, the BDG is effectively generated in LP01 mode within a range of 250 m, and three higher-order modes, namely, LP11b, LP21a, and LP02, are chosen as probes to analyze the BDG with a spatial resolution of 1 m. To the best of our knowledge, this is the first time to characterize the responses of BDG frequency to temperature and strain for different modes in a conventional few-mode fiber. By employing the pump-probe pair of LP01-LP02 mode, the highest temperature and strain sensitivities of 3.21 MHz/degrees C and -0.0384 MHz/mu epsilon have been achieved. Also, the performance of simultaneously distributed temperature and strain sensing based on BDG is evaluated. (C) 2020 Optical Society of America

引用

页码：2152 / 2155

页数：4

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