对分布式光纤温度传感器背向拉曼散射信号提取方法的改进  

Improved Extracting Scheme of Backscattered Raman in Distributed Fiber Temperature Sensors

作　　者：赵洪志[1,2] 李乃吉[1,2] 赵达尊[1,2] 

机构地区：[1]北京清华大学 [2]北京理工大学

出　　处：《光学技术》1997年第1期23-24,共2页Optical Technique

摘　　要：本文提出了一种改进的分布式光纤温度传感器背向拉曼散射信号的提取方案。该方案在不影响反斯托克斯光的前提下，取得了斯托克斯信号，实验证实了它的可行性。We present an improved scheme of distributed fiber temperature sensors. Usually, Stokes and anti Stokes are obtained in the same port of a coupler by splitter. In the scheme, they are obtained in different ports of the coupler with no influence each other. The anti Stokes obtained in the scheme is larger than that in usual scheme. It is of great importance to distributed fiber temperature sensors.

关 键 词：光纤传感器 信噪比 拉曼散射 

分 类 号：TN253[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]