分布式光纤传感器中孤子效应作用的研究

针对目前分布式光纤传感器的优缺点，提出利用孤子效应来提高喇曼型ＤＯＦＳ的空间分辨率，具体分析了孤子效应对喇曼散射型分布式光纤传感器的作用，指出高阶孤子效应能在一距离 的传感中实现高空间分辨率。在分析中考虑了输入光脉冲波形变化和预测调频对返回脉冲的影响。

Study on the soliton's effect on distributed optical-fiber sensors

In this paper, through studying on the advantage and defect of current distributed optical\|fiber sensors(DOFS), we firstly put forward the method of using soliton to improve the spatial resolution of DOFS based on spontaneous Raman scattering. We studied in detail the soliton's effect on DOFS, and pointed out that if using high\|order soliton in relatively short sensing distance (<1 km) we can improve the spatial resolution observably. We also consider the effect of the variation of incident pulse form and the initial chirp.