Optimization and experiment of a miniature multimode fiber induced-LPG refractometer

被引：10

作者：

Zhang, Shuo ^{[1
]}

Deng, Sifan ^{[1
]}

Wang, Zemin ^{[1
]}

Yang, Wenlei ^{[1
]}

Sun, Cuiting ^{[1
]}

Chen, Xudong ^{[1
]}

Ma, Yiwei ^{[1
]}

Li, Yuxiang ^{[1
]}

Geng, Tao ^{[1
]}

Sun, Weimin ^{[1
]}

Yuan, Libo ^{[1
,2
]}

机构：

[1] Harbin Engn Univ, Coll Sci, Harbin 150001, Heilongjiang, Peoples R China

[2] Guilin Univ Elect Technol, Photon Res Ctr, Guilin 541004, Peoples R China

来源：

OSA CONTINUUM | 2019年 / 2卷 / 07期

基金：

中国国家自然科学基金;

关键词：

SENSITIVITY REFRACTIVE-INDEX; SENSOR; TEMPERATURE; GRATINGS; INTERFEROMETER; LASER;

D O I：

10.1364/OSAC.2.002190

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We design and fabricate a novel highly integrated all-fiber single mode-multimode-single mode long period grating (SMS-LPG) refractometer. The experiment and simulation results confirm that the powerful local refractive index modulation capability of the multimode fiber (MMF) simultaneously reduces the length of the LPG and achieves excellent refractive index sensitivity. The spectral characteristics and sensing responses of different duty cycles are investigated. The optimized SMS-LPG sample achieved a refractive index sensitivity of 427.01 nm/RIU. The miniature SMS-LPG refractometer is a new sensor for measuring the external refractive index. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2190 / 2198

页数：9

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