A novel: surrounding refractive index sensor based on the polarization characteristics of thin-cladding long-period fiber grating

被引：2
|
作者：
Bai, Yukun [1 ,2 ]
Zhang, Yue [1 ]
Ma, Xiurong [1 ]
机构：
[1] Tianjin Univ Technol, Engn Res Ctr Commun Devices & Technol, Minist Educ, Sch Comp & Commun Engn, Tianjin 300384, Peoples R China
[2] Tianjin Univ, Key Lab Optoelect Informat Sci & Technol, Coll Precis Instrument & Optoelect Engn, Inst Laser & Optoelect,Minist Educ, Tianjin 300072, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2015年 / 355卷
关键词：
Polarization; Thin-cladding; LPFG; SRI; Sensor; OPTICAL-FIBER; BIREFRINGENCE;
D O I：
10.1016/j.optcom.2015.07.004
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a new method to measure the surrounding refractive index (SRI) is proposed. It is based on the core-only photoinduced birefringence of long-period fiber grating (LPFG). The relationship between Stokes parameters of output light polarization states and SRI is analyzed using full-vector coupled mode equations. Compared to the conventional LPFG SRI sensors, this sensing method features a fairly good linearity performance and reasonably high resolution over a much broader SRI measurement range from 1 to 1.46 which may be applied to the humidity and vapor sensing. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：607 / 611
页数：5
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