利用高双折射光纤的色散效应产生微波脉冲

研究了一种基于啁啾高斯脉冲在高双折射光纤中的光学色散效应和干涉产生微波脉冲的新方法，推导了啁啾高斯光脉冲在经过色散延迟后产生的微波频率的解析表达式。输出的微波频率可以通过选择不同的光学系统参数和啁啾高斯脉冲参数实现控制。研究了不同啁啾参数对输出脉冲强度、脉冲持续时间和脉冲频率的影响，结果表明，输入脉冲啁啾参数的引入不仅可以提高输出脉冲的持续时间，还可以使所需脉冲频率实现约10％的可选范围。

Generation of Microwave Pulses Using Dispersion in High-birefringence Fiber

A new method to generate microwave pulses based on dispersion and interference of chirp Gauss pulses in high birefringence fiber is investigated. The theoretical expression of the microwave frequency is derived by coupled mode theory. The frequency of generated pulses can be controlled by changing the parameters of the system. The results are given with different chirp parameters and dispersion coefficient, which show that the chirp coefficient not only increases the duration of the output pulses, also improves about 10% frequency tunable range of desired microwave.