Photonic crystal fiber strain sensor based on multimode/air spherical cavity structure

被引：6

作者：

Gao, Peng ^{[1
]}

Liu, Ying ^{[1
]}

Zheng, Xiaolin ^{[1
]}

Wang, Zimu ^{[1
]}

机构：

[1] Shenyang Normal Univ, Sch Phys, Shenyang 110034, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2023年 / 526卷

关键词：

Mach-Zehnder interferometer; Strain sensor; Air sphere cavity; Multimode fiber (MMF); Photonic crystal fiber (PCF); TEMPERATURE; INTERFEROMETER; LOOP;

D O I：

10.1016/j.optcom.2022.128942

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a novel high-sensitivity strain sensor based on Mach-Zehnder interference is drawn up and implemented. A single-mode fiber (SMF)-splitter-PCF-combiner-SMF structure is required for the sensor. The beam splitter and beam combiner, for example, have both used MMF and an air spherical cavity, respectively. When the symmetric structure of the air spherical cavity is utilized, the strain sensor has a maximum sensitivity of -8.15 pm/mu epsilon. The device has the benefits of high sensitivity, small size, and good repeatability, making it a possible application in strain shift measurement.

引用

页数：11

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