文章主要利用HNLF(高非线性光纤)实现超宽带波长转换。从HNLF出发, 简单介绍了光纤的基本原理和参数, 利用光纤的耦合振动方程, 推导了FWM(四波混频)效应进行波长变换的理论依据, 并分析了影响波长转换效率的因素。针对这些因素, 利用Optisystem仿真软件在常规非线性光纤中进行仿真验证。通过调整相关参数, 在自定义参数HNLF中实现了较大带宽和较高效率的波长转换。

In this paper, we use a High Non-Linear Fiber(HNLF) to achieve broadband wavelength conversion. We first introduce the basic principles and parameters of HNLF, and then derive the theory of wavelength conversion based on Four-Wave Mixing (FWM). Finally, the factors which may have influences on the conversion efficiency are analyzed. The simulations are conducted in the software Optisystem. After optimization of several parameters, we demonstrate a broadband and high-efficiency converter based on HNLF.