皮秒脉冲传输系统中三阶色散补偿的研究

Third-Order Dispersion Compensation in Picosecond Pulse Transmission System

模拟了皮秒高斯光脉冲在理想的二阶和三阶色散都作了补偿的光纤链中的传输。结果表明 ,与二阶色散补偿能消除脉冲展宽一样 ,三阶色散补偿不仅能防止脉冲展宽 ,而且也能有效地消除脉冲边沿部的振荡结构和脉冲峰的时移。文中画出了 10 0Gb/s码率的 6 4位高斯光脉冲序列在色散补偿光纤链中传输 2 0 0 0km后的眼图 ,由眼图的清晰程度可看出这种补偿系统对改善短脉冲传输的有效性。

In a second order dispersion and third order dispersion compensation optical fiber links system, 1 ps Gaussian pulse's transmission is simulated. It is concluded that as second order dispersion compensation can avoid pulse broadening, third order dispersion compensation not only can avoid pulse broadening, but also eliminate pulse edge's oscillating and temporal shift of pulse peak. The eye diagrams of 64 bit random data pattern of 100 Gb/s Gaussian pulse series after transmitting 2000 km are obtained. It is shown through the clear eye diagram that third dispersion compensation system can efficiently improve the transmission performance of short pulse.