分布式光纤传感器中孤子效应作用的研究

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

针对目前分布式光纤传感器(DOFS)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较短距离(<1km)的传感中实现高空间分辨率(<0.1m).

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.