光子学报, 2009, 38 (3): 660, 网络出版: 2010-07-16
40 Gb/s差分相移键控格式抗偏振模色散的性能研究
Performance Research on 40 Gb/s DPSK Format Against Polarization-mode Dispersion
光纤通信 差分相移键控 偏振模色散 调制格式 Optical communication Differential phase-shift keying Polarization-mode dispersion Modulation format
摘要
研究了40Gb/s非归零或归零格式下,差分相移键控和开关键控信号对一阶偏振模色散的影响.比较分析了不同偏振模色散影响下的各种调制格式的眼开度.结果表明:使用非归零和归零格式，在一阶偏振模色散情况下，差分相移键控信号均比开关键控信号有更高的眼开度；与归零差分相移键控格式相比，非归零差分相移键控格式受偏振模色散影响眼开度要小；对于给定的比特率，载波抑制归零差分相移键控格式比归零差分相移键控格式有更好的抗偏振模色散能力.
Abstract
The influences of first-order polarization-mode dispersion (PMD) on systems using differential phase-shift keying (DPSK) and on-off keying (OOK) with 40 Gb/s non-return-to-zero (NRZ) or return-to-zero (RZ) formats were studied.The eye open value of modulation formats on the different PMD effects were compared and analyzed.The simulation results show that when either the NRZ or RZ format is used,DPSK exhibits higher eye open performance than OOK in the presence of first-order PMD; NRZ-DPSK,as compared with RZ-DPSK,incurs smaller eye open due to PMD effects; CSRZ-DPSK format has better tolerance than RZ-DPSK format to PMD for a given bit rate.
何晶, 陈林, 文双春. 40 Gb/s差分相移键控格式抗偏振模色散的性能研究[J]. 光子学报, 2009, 38(3): 660. HE Jing, CHEN Lin, WEN Shuang-chun. Performance Research on 40 Gb/s DPSK Format Against Polarization-mode Dispersion[J]. ACTA PHOTONICA SINICA, 2009, 38(3): 660.
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