Simultaneous measurement of temperature and RI based on an optical microfiber coupler assembled by a polarization maintaining fiber

被引：25

作者：

Zhao, Li ^{[1
]}

Zhang, Yundong ^{[1
]}

Chen, Yunhao ^{[1
]}

Wang, Jinfang ^{[2
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Inst Optoelect, Harbin 150080, Heilongjiang, Peoples R China

[2] Shanghai Aerosp Control Technol Inst, Shanghai Engn Res Ctr Inertia, Shanghai 200233, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2019年 / 114卷 / 15期

基金：

国家重点研发计划;

关键词：

REFRACTIVE-INDEX; LOOP MIRROR; INTERFEROMETER; STRAIN;

D O I：

10.1063/1.5096621

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A temperature and refractive index simultaneous measurement sensor based on an optical microfiber coupler (OMC) combined with a polarization maintaining fiber (PMF) is proposed and experimentally demonstrated. The OMC-PMF sensor is fabricated by inserting a section of PMF between two output ports of the OMC. The interference spectrum of the OMC-PMF sensor has different responses to temperature and refractive index variations. Temperature and the refractive index can be measured by monitoring the dip intensity variation and the dip wavelength shift of the interference spectrum, respectively. The experimental results show that the refractive index sensitivity is 12 020 nm/RIU, and the temperature sensitivity is 0.88 dB/degrees C upon increasing temperature from 35 degrees C to 41 degrees C. Published under license by AIP Publishing.

引用

页数：5

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