DBR-FIBER-LASER-BASED ACTIVE TEMPERATURE SENSOR AND ITS APPLICATIONS IN THE MEASUREMENT OF FIBER BIREFRINGENCE

被引：21
|
作者：
Liu, Bo [1 ]
Jia, Chenglai [1 ]
Zhang, Hao [1 ]
Luo, Jianhua [1 ]
机构：
[1] Nankai Univ, Key Lab Optoelect Informat Sci & Technol, Coll Informat Tech Sci, Minist Educ, Tianjin 300071, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2010年 / 52卷 / 01期
关键词：
fiber sensor; fiber birefringence; distributed Bragg reflector (DBR); fiber laser; temperature active sensor;
D O I：
10.1002/mop.24820
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A fiber active temperature sensor based on single-longitudinal-mode distributed Bragg reflector (DBR) fiber laser is proposed and experimentally demonstrated. The dual-polarization mode DBR fiber laser could be employed as a temperature sensor through beat frequency interrogation. The temperature sensitivities of this polarimetric sensor are experimentally compared both through frequency and wavelength interrogations. By calculating the fiber birefringence at different temperature, temperature dependence of fiber birefringence is also investigated. Theoretical analysis and experiment results indicate that the fiber birefringence would linearly decrease with the increase of temperature. Based on the frequency and wavelength interrogations, respectively, the fiber active sensor would provide an effective way to achieve simultaneous measurement of multi-parameters. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 41-44, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24820
引用
收藏
页码：41 / 44
页数：4
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