Spatial resolution enhancement in fiber Raman distributed temperature sensor by employing ForWaRD deconvolution algorithm

被引：39

作者：

Bahrampour, A. R. ^{[2
]}

Moosavi, A. ^{[1
]}

Bahrampour, M. J. ^{[3
]}

Safaei, L. ^{[4
]}

机构：

[1] Int Ctr Sci High Technol & Environm Sci, Kerman, Iran

[2] Sharif Univ Technol, Dept Phys, Tehran, Iran

[3] Shahid Bahonar Univ, Dept Civil Engn, Kerman, Iran

[4] Shahid Bahonar Univ, Dept Phys, Kerman, Iran

来源：

OPTICAL FIBER TECHNOLOGY | 2011年 / 17卷 / 02期

关键词：

ForWaRD; Fiber Raman; Temperature sensor; Resolution enhancement; DOMAIN; LIGHT;

D O I：

10.1016/j.yofte.2011.01.005

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：

Governing equations of a Raman fiber distributed temperature sensor supported by a counter propagating pumped Raman amplifier are written in the form of integral equations. Forward pump and backward going probe are in the pulsed and continuous wave modes of operation respectively. It is shown that powers of the forward and backward Raman signals (stokes and anti stokes) approximately are the convolution of the input forward pump pulse and corresponding optical fiber impulse responses. The Fourier Wavelet Regularized Deconvolution (ForWaRD) method is employed to improve the spatial resolution in fiber Raman distributed temperature sensor without reducing the pulse width of the laser source. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：128 / 134

页数：7

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