G.655光纤DWDM系统的DCF色散补偿方案比较  

Comparison of the DCF dispersion compensation schemes in DWDM system with G.655

作　　者：谢幸初[1] 陈雪[1] 周伟勤[1] 施社平[1] 

机构地区：[1]北京邮电大学光通信与光波技术教育部重点实验室,北京100876

出　　处：《光通信技术》2008年第2期25-28,共4页Optical Communication Technology

基　　金：教育部留学归国人员教学;科研经费建设项目资助

摘　　要：研究了NRZ-DPSK和NRZ-DQPSKG.655光纤40Gb/sDWDM通信系统中预补偿和逐段补偿两种色散补偿方案。通过仿真对比了这两种方案的色散性能和非线性性能,得出预补偿方案优于逐段补偿方案。在未来50GHz通道间隔40Gb/sDWDM系统中,采用预补偿能获得更好的传输性能。Tow schemes of dispersion compensation, pre-compensation and section-by-section compensation, are studied in 40Gb/s DWDM system with G.655 using NRZ-DPSK and NRZ-DQPSK modulation formats. A simulation is implemented to compare the dispersion and nonlinearity performance of these two methods, and it is found that pre-compensation performances better than section-by-section-compensation. The usage of pre-compensation will obtain better transmission capability in future 40Gb/s DWDM system with 50GHz channel-spacing.

关 键 词：光通信 G.655 DCF色散补偿 NRZ-DPSK NRZ—DQPSK 

分 类 号：TN929.11[电子电信—通信与信息系统]