摘要
光纤的色散特性和散射损耗都取决于光纤内部的折射率分布。本文描述了利用散射谱测量光纤折射率分布的方法,利用微扰法解波动方程,并通过散射谱的位相恢复技术,此法能够以任意理论精度逼近光纤的折射率分布,并能对原理误差给出定量结果。
The dispersion and the scattering loss of optical fiber are dependen on its refractive index profile. A. scattering method for measuring the refractive index profile of optical fiber is described in this paper. Using the perturbation calculus to solve the wave equation and by means of phase retrieval of scattered field, the refractive index profile of optical fiber can be approximate to any theoretical accuracy, and the principle error can be given quantitatively.
出处
《计量学报》
CSCD
1989年第3期207-211,共5页
Acta Metrologica Sinica
