中国物理B ›› 2011, Vol. 20 ›› Issue (11): 114201-114201.doi: 10.1088/1674-1056/20/11/114201
• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇 下一篇
秦江星, 席丽霞, 张晓光, 田凤
Qin Jiang-Xing(秦江星)†, Xi Li-Xia(席丽霞), Zhang Xiao-Guang(张晓光), and Tian Feng(田凤)
摘要: A novel dual polarization differential quadrature phase shift keying (DP-DQPSK) system is proposed, whose receiver is the same as the single polarization DQPSK system, while it does not need polarization de-multiplexing like the conventional polarization division multiplexing QPSK (PDM-QPSK). Polarization mode dispersion (PMD) is mainly considered and PMD compensation for the DP-DQPSK system is studied. As the feedback signal for PMD compensation, the degree of polarization of the signals is discussed in detail. The results show that PMD tolerance can be improved by 89 ps within 1 dB optical signal noise ratio penalty after PMD compensation for the DP-DQPSK system.
中图分类号: (Polarization)