分布式光纤温度传感器最佳工作波长的确定

Analysis of the optimum wavelength in distributed fiber temperature sensors

本文定量分析了分布式光纤温度传感器中温敏信号即自发拉曼散射中反斯托克斯与工作波长的关系，给出依据使传感光纤尾端的反射托克斯信号最强这一最佳意义下工作波长的表达式，并分析了在非最佳工作波长下传感系统的响应。

e present an analysis of the anti-Stokes in Raman backscatter for distributed fiber tem-perature sensors to quantify the effect of varying the pump wavelength.An optimal pump wavelengthwas found based on maximising the anti-Stokes backscattered power from the endpoint of the fiber. Thesensitivity of the system responses to non-optimum pump wavelengths was also analysed.