Optical fiber sensor based on a radio frequency Mach-Zehnder interferometer

被引：51
|
作者：
Wei, Tao [1 ]
Huang, Jie [1 ]
Lan, Xinwei [1 ]
Han, Qun [1 ,2 ]
Xiao, Hai [1 ]
机构：
[1] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA
[2] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China
来源：
OPTICS LETTERS | 2012年 / 37卷 / 04期
关键词：
LASER SENSOR; BEAT-FREQUENCY; FILTERS;
D O I：
10.1364/OL.37.000647
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This Letter proposes an optical fiber radio frequency (RF) Mach-Zehnder interferometer (MZI) for sensing applications. An RF modulated laser source is injected into an optical fiber RF-MZI and collected by a photodiode. The interference pattern is observed in the RF domain by sweeping the frequency using a network analyzer. The proposed sensor has a linear response to applied temperature change. In addition, the sensitivity, observation frequency range, and the length of the sensing arm are discussed. (C) 2012 Optical Society of America
引用
收藏
页码：647 / 649
页数：3
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