全光超宽带正相和反相monocycle信号源的研究

基于半导体光放大器( SOA)中交叉增益调制(XGM)效应,同时全光实现超宽带(UWB)正相、反相高斯单边信号(monocycle).输出的monocycle脉冲只包含一个波长分量,在光纤传输过程中monocycle上下脉冲不会引入时间差.利用光通信系统软件OptiSystem对方案进行仿真,分析了光源波长对输出monocycle脉冲的影响,结果表明输出的monocycle脉冲具有对光源变化不敏感的优点.

Research of all-optical UWB positive and negative monocycle signal source

We propose a novel scheme all-optical realizing ultra-wideband positive、negative monocycle signal pulse based on the cross-gain modulation(XGM) in a semiconductor optical amplifier(SOA).there is only one single wavelength included in the output UWB monocycle signal pulse,no time differences between the upper and lower pulses is introduced during the transmission process in the fiber.By using the software of Optisystem,the impacts of the wavelengths of the light source on the generated monocycle pulse are numerically simulated and studied.The results show that the output monocycle pulse of this scheme is insensitive to the wavelength change.