Improving spatial resolution in fiber Raman distributed temperature sensor by using deconvolution algorithm

被引：1
|
作者：
张磊 [1 ]
冯雪 [1 ]
张巍 [1 ]
刘小明 [1 ]
机构：
[1] State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science and Technology, Tsinghua University
来源：
Chinese Optics Letters | 2009年 / 7卷 / 07期
关键词：
Improving spatial resolution in fiber Raman distributed temperature sensor by using deconvolution algorithm;
D O I：
暂无
中图分类号：
TP212.11 [];
学科分类号：
080202 ;
摘要：
The deconvolution algorithm is adopted on the fiber Raman distributed temperature sensor (FRDTS) to improve the spatial resolution without reducing the pulse width of the light source. Numerical simulation shows that the spatial resolution is enhanced by four times using the frequency-domain deconvolution algorithm with high temperature accuracy. In experiment, a spatial resolution of 15 m is realized using a master oscillator power amplifier light source with 300-ns pulse width. In addition, the dispersion-induced limitation of the minimum spatial resolution achieved by deconvolution algorithm is analyzed. The results indicate that the deconvolution algorithm is a beneficial complement for the FRDTS to realize accurate locating and temperature monitoring for sharp temperature variations.
引用
收藏
页码：560 / 563
页数：4
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