中文摘要：

我们建议一个新奇计划产生极端宽带(UWB ) 马甲信号脉搏基于在一个半导体的跨获得的调整(XGM ) 光放大器(SOA ) 。在计划，仅仅光来源和 SOA 被需要。因为仅仅有一波长，在产量马甲信号脉搏包括，没有时差在之间上面并且在脉搏下面在传播过程期间被介绍。由使用 Optisystem 7.0 的软件，光力量， SOA 水流，波长和输入的影响在产生马甲脉搏上表明脉搏宽度被模仿并且 tudied 数字地。结果证明当输入信号脉搏的脉搏宽度更大时，产量信号脉搏更好，并且对波长的变化感觉迟钝。另外，极端宽带的积极、否定的独轮脚踏车能被选择合适的光来源功率和 SOA 电流产生。

英文摘要：

We propose a novel scheme to generate the ultra-wideband （UWB） doublet signal pulse based on the cross-gain modulation （XGM） in a semiconductor optical amplifier （SOA）. In the scheme, only an optical source and an SOA are needed. As there is only one wavelength included in the output doublet signal pulse, no time difference between the upper and down pulses is introduced during the transmission process. By using the software of Optisystem 7.0, the impacts of the optical power, the SOA current, the wavelength and the input signal pulse width on the generated doublet pulse are simulated and tudied numerically. The results show that when the pulse width of the input signal pulse is larger, the output signal pulse is better, and is insensitive to the change of wavelength. In addition, the ultra-wideband positive and negative monocycles can be generated by choosing suitable optical source power and SOA current.