论文部分内容阅读
基于一种二阶和三阶色散补偿的光纤级联系统模型 ,用数值法对啁啾皮秒光脉冲作了传输模拟。结果表明 ,完全补偿的高阶色散控制系统消除了三阶色散所引起的脉冲边沿部的振荡 ,减弱了脉冲峰的时间移动 ;另外 ,在确定的配置下 ,给输入脉冲附加一最佳的频率啁啾 ,可使得色散控制孤子稳定传输。脉冲宽度和啁啾以及光强度都围绕在初始值附近波动 ,在每个补偿周期末端 ,基本恢复到初始值 ;最佳啁啾的选取与二阶色散的配置有关 ,与三阶色散的配置无关 ;文中画出了 10 0Gbit/s码率的 64位随机高斯光脉冲序列在完全补偿系统中传输 10 0 0 0km后的眼图。由清晰的眼图可知 ,这种完全补偿系统减弱了脉冲之间的相互作用
Based on a second-order and third-order dispersion-compensated fiber cascaded system model, the chirp picosecond optical pulse is simulated numerically. The results show that the completely compensated high-order dispersion control system eliminates the oscillation of the pulse edge caused by the third-order dispersion and weakens the time-shift of the pulse peak. In addition, under the certain configuration, an optimal frequency is added to the input pulse Chirp, can make the dispersion control soliton stable transmission. Pulse width and chirp, and light intensity all fluctuate around the initial value, and return to the initial value at the end of each compensation period. The optimal chirp selection is related to the configuration of second-order dispersion and has no relation with the third-order dispersion The eye diagram of a 64-bit random Gaussian optical pulse sequence with a bit rate of 100 Gbit / s is transmitted in a complete compensation system after the transmission of 10 000 km. From a clear eye diagram, this complete compensation system reduces the interaction between the pulses