Secondary Bragg grating based fiber sensors for the application in high temperature environment

被引：0

作者：

Ran, Yang ^{[1
,2
]}

Feng, Fu-Rong ^{[1
]}

Jin, Long ^{[1
]}

Guan, Bai-Ou ^{[1
]}

机构：

[1] Jinan Univ, Inst Photon Technol, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Guangdong, Peoples R China

[2] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA

来源：

FIBER OPTIC SENSORS AND APPLICATIONS XV | 2018年 / 10654卷

基金：

中国国家自然科学基金;

关键词：

Fiber Bragg grating; photosensitivity; Talbot effect; distributed Bragg reflector (DBR); fiber lasers; high temperature resistance; NEGATIVE-INDEX GRATINGS; OPTICAL-FIBERS; IIA; LASER; NM;

D O I：

10.1117/12.2302806

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

As one of the most proven fiber optic sensors, novel fiber Bragg gratings are continually investigated to extend their roles in extreme environments. In this paper, a newly found "secondary Bragg grating" (SBG) is proposed. The presence of SBG occurs in the case of the type-IIa Bragg grating inscribed in small active fibers, where an additional resonance appears at the shorter wavelength. The SBG provides a variety of interesting characteristics, such as the dip integration, high temperature resistance and high reflectivity, showing promising potential in high temperature sensing.

引用

页数：6

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