Liquid-crystal based Fabry-Perot interferometer displacement sensor

被引：18

作者：

Song, Boyi ^{[1
]}

Hu, Jianyang ^{[1
]}

Xia, Chunli ^{[1
]}

Zhang, Hai ^{[1
]}

Lu, Yuelan ^{[1
]}

Sun, Weimin ^{[1
]}

Liu, Yongjun ^{[1
]}

机构：

[1] Harbin Engn Univ, Key Lab Fiber Integrated Opt, Minist Educ China, Harbin, Heilongjiang, Peoples R China

来源：

APPLIED OPTICS | 2019年 / 58卷 / 02期

基金：

中国国家自然科学基金;

关键词：

TEMPERATURE SENSOR; PRESSURE SENSOR; FIBER;

D O I：

10.1364/AO.58.000410

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Fabry-Perot interferometer displacement sensor is proposed and demonstrated. This sensor is prepared by inserting two ceramic ferrules into a polydimethylsiloxane (PDMS) hose to generate a Fabry-Perot cavity. The cavity is filled with nematic liquid crystals (NLCs), which induce a Vernier effect due to the birefringence of NLCs. The flexible PDMS hose makes the cavity length adjustable. A displacement sensor with sensitivity of similar to 2.97 nm/mu m and a dynamic range of 0.9 mm at the center wavelength of 1550 nm is experimentally demonstrated. (C) 2019 Optical Society of America

引用

页码：410 / 414

页数：5

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