Resolution-increased fiber-optic strain sensor with a large dynamic range driven by white light

被引：2

作者：

Zhou, Biying ^{[1
]}

Wang, Wenrui ^{[1
]}

Bai, Xueqian ^{[1
]}

Hu, Jun ^{[1
]}

Chen, Bin ^{[2
]}

Ye, Lingyun ^{[1
]}

Song, Kaichen ^{[1
]}

机构：

[1] Zhejiang Univ, Hangzhou 310027, Peoples R China

[2] Hangzhou City Univ Res Off, Hangzhou 310015, Peoples R China

来源：

OPTICS LETTERS | 2024年 / 49卷 / 04期

关键词：

Fiber optics;

D O I：

10.1364/OL.510910

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The white light interferometer is advantageous for wavelength division multiplexing (WDM), but the excessive noise floor limits its application in practicality. In this Letter, we propose a fiber-optic sensor driven by a broadband light source, which uses a fiber-optic Fabry-Perot cavity and a reference interferometer to enhance strain resolution. In the experiment, the strain resolution of a 5.86 m resonant sen root sor is 18.5 f epsilon/ Hz at 1.5 kHz, while the maximum detectable signal is over 230 rad at 1 kHz. With low cost, this method provides a new, to the best of our knowledge, solution for WDM sensing arrays with a large dynamic range. (c) 2024 Optica Publishing Group

引用

页码：1057 / 1060

页数：4

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