中文摘要：

采用简化法分别研究了差分相移键控（DPSK）色散管理线性和类孤子系统的传输特性，得出较为简洁明了的脉宽以及脉；中啁啾随距离演化的方程组．研究的结果发现，线性的DPSK系统只有在色散完全补偿的情形下是一种临界的稳定，而类孤子的DPSK系统即使在欠补偿情形下，系统也是完全的稳定，啁啾的演化是独特的闭合曲线．其完全稳定性的物理实质来自于非线性效应引入的自柬绰势．从而说明DPSK色散管理类孤子系统良好的传输性能．

英文摘要：

The transmission charaeteristics of Differential Phase Shift Keying （DPSK） Dispersion Managed Soliton-like （DMS） anti width and chirp with di linear systems are analyzed by simplifying. The concise evolution equations of pulse are gotten. The had discleared that the linear DPSK system ix critical steady only in condition of dispersion completely completely steady even in lack of dispersion compe curve. The completed stability of soliton-likc DPSK self-trapping potential energy induced by nonlinear system have a favorable transmission performance. compensated. but the soliton-like DPSK system can nsated, in which the chirp evolution is a unique close system has the physical essential that come from the effects. It can be explained that the DMS of DPSK system have a favorable transmission performance.