FBG-based wavelength-shift detection system with enhanced temperature sensitivity

被引:0
作者
Zhang, ZG [1 ]
Zhang, M [1 ]
Ye, PD [1 ]
Su, FG [1 ]
机构
[1] Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Opt Commun & Lightwave Technol, Beijing 100876, Peoples R China
来源
PASSIVE COMPONENTS AND FIBER-BASED DEVICES II, PT 1 AND 2 | 2005年 / 6019卷
关键词
fiber Bragg grating; thermistance; matching-FBG; database;
D O I
10.1117/12.633574
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Proposed and demonstrated in this letter is a scheme of fiber Bragg grating (FBG) interrogation system based on thermistance and matching-FBG of temperature sensitivity enhancement. According to the relationship between the period of the matching-FBG and the resistance value of the thermistance, the scheme interrogates the wavelength-shift by adjusting the matching-FBG's temperature and detecting the resistance value of the thermistance. In measured experiments, the results show that the precision of the proposed system is 0.048nm in a range of 5.9nm.
引用
收藏
页码:U509 / U513
页数:5
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