利用梳状色散光纤实现光脉冲压缩的特性研究

Performance Study of a Comb-Like Dispersion Profiled Fiber Compressor

提出了一种采用梳状色散光纤 (CDPF)实现光脉冲压缩的设计方法 ,并给出了相应的适于模拟梳状色散光纤压缩器的数值模型 ,主要研究了不同入射峰值功率下 ,梳状色散光纤输出脉冲宽度及时域波形与脉冲峰值处非线性相移ΔNL之间的变化关系。结果表明 ,在设计适用于超高速光时分复用系统的梳状色散光纤压缩器时 ,应当综合考虑脉冲峰值功率和非线性相移对压缩后脉冲的影响。

A method using comb-like dispersion profiled fiber (CDPF) to achieve pulse compressing is given, and corresponding numerical model is also presented. Based on this model, the effect of nonlinear phase shift on pulse width and waveform from CDPF compressor was studied under the condition of different pulse peak power. The numerical results reveal that the incident pulse peak power and nonlinear phase shift should be satisfy certain conditions, to get the suited CDPF compressor for using in the ultrahigh speed optical time division multiplexing (OTDM) system.