Pulse reference-based compensation technique for intensity-modulated optical fiber sensors

被引：0
|
作者：
卞强 [1 ,2 ]
宋章启 [1 ]
陈宇中 [1 ]
张学亮 [1 ]
机构：
[1] Academy of Ocean Science and Engineering, National University of Defense Technology
[2] College of Optoelectronics Science and Engineering, National University of Defense Technology
来源：
Chinese Optics Letters | 2017年 / 15卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Pulse reference-based compensation technique for intensity-modulated optical fiber sensors;
D O I：
暂无
中图分类号：
TP212 [发送器（变换器）、传感器];
学科分类号：
080202 ;
摘要：
We propose a compensation technique based on pulse reference for intensity-modulated optical fiber sensors that can compensate the power fluctuation of the light source, the change of optical components transmission loss,and the coupler splitting ratio. The theoretical principle of this compensation technique is analyzed and a temperature sensor based on fiber coating-covered optical microfiber is carried out to demonstrate the compensation effect. The system noise is measured to be 0.0005 d B with the temperature sensitivity reaching-0.063 dB∕°C, and the output drift is 0.006 dB in 2h at room temperature. The output shows a slight variation(0.0061 dB) when the light source and the common light path suffer a 3 dB attenuation fluctuation.
引用
收藏
页码：24 / 27
页数：4
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