ANALYSIS OF THE WAVELENGTH DEPENDENCE OF RAMAN BACKSCATTER IN OPTICAL FIBER THERMOMETRY

被引：7

作者：

SAMSON, PJ

机构：

[1] BHP Central Research Laboratories, NSW, P.O. Box 188 Wallsend

来源：

ELECTRONICS LETTERS | 1990年 / 26卷 / 03期

关键词：

Optical fibres; Optical measurement; Optical sensors;

D O I：

10.1049/el:19900111

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：

We present an analysis of the Raman backscatter for optical fibre distributed temperature sensors to quantify the effect varying the pump wavelength. An optimal pump wavelength was found based on maximising the anti-Stokes back-scattered power from the endpoint of the fibre. This optimum pump wavelength was found to vary as the fourth root of the distance to the endpoint of the fibre. The sensitivity of system response to non-optimum pump wavelengths was alsoanalysed. Results are presented for both direct detection and photon counting schemes. © 1990, The Institution of Electrical Engineers. All rights reserved.

引用

页码：163 / 165

页数：3

共 7 条

[1] BACKSCATTERING IN SINGLE-MODE FIBERS [J].