期刊论文

中文

光通信技术

1002-5561

2012

36

1

25-28

10.13921/j.cnki.issn1002-5561.2012.01.013

本校为第一机构

采用Optisystem软件，对比分析了非归零码(NRZ)、归零码(RZ)、载波抑制归零码(CS-RZ)和载波抑制归零差分相移键控码(CSRZ-DPSK)四种码型在8×40Gb/s DWDM系统的传输性能。结果表明，CSRZ-DPSK码抗色度色散和PMD性能最优，CS-RZ码的OSNR容限最低。当入纤光功率适中、色散和色散斜率同时补偿时，CSRZ-DPSK码和CS-RZ码的最大传输距离超过2700km。

By using Optisystem software the performance comparison of NRZ,RZ,CS-RZ and CSRZ-DPSK four kinds of formats in the 40Gb/s DWDM system have been analyzed. The simulation shows that CSRZ-DP- SK format has higher tolerance of chromatic dispersion and PMD than the others, and CS-RZ format has lowest OSNR tolerance.The longest transmission distance of CSRZ-DPSK format and CS-RZ format all exceed 2700kin under the conditions of medium input optical power of each channel in the 40Gb/s DW...