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利用光通信系统设计平台,研究了一种基于直接调制激光器和非零色散位移光纤(NZDSF)的高速粗波分复用(CWDM)系统的优化方案。通过软件的参数优化和扫描计算等独有功能,着重分析了光纤色散对高速直接调制信号的影响,比较并证实了NZDSF的CWDM升级方案的可行性。研究发现,负色散系数的光纤与光脉冲啁啾相互作用能更好地改善传输质量。
Using optical communication system design platform, an optimization scheme of high speed coarse wavelength division multiplexing (CWDM) system based on direct modulation laser and non-zero dispersion shifted fiber (NZDSF) was studied. Through the software’s unique parameters such as parameter optimization and scanning calculation, the influence of fiber dispersion on high-speed direct modulation signal is emphatically analyzed. The feasibility of NZDSF CWDM upgrade scheme is verified and verified. The study found that the negative dispersion coefficient of optical fiber and optical pulse chirp interaction can better improve the transmission quality.