利用时域光学傅里叶变换实现的2.56太比特/秒/通道偏振复用差分四相相移键控在300公里距离上的传输。

2.56 Tbit/s/ch polarization-multiplexed DQPSK transmission over 300 km using time-domain optical Fourier transformation.

作者信息

Guan Pengyu, Hirano Toshiyuki, Harako Koudai, Tomiyama Yutaro, Hirooka Toshihiko, Nakazawa Masataka

机构信息

Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577 Japan.

出版信息

Opt Express. 2011 Dec 12;19(26):B567-73. doi: 10.1364/OE.19.00B567.

DOI:10.1364/OE.19.00B567

PMID:22274072

Abstract

We demonstrate a 2.56 Tbit/s/ch polarization-multiplexed single-carrier transmission over 300 km using subpicosecond DQPSK signals. We adopted an ultrafast time-domain optical Fourier transformation technique to reduce waveform distortions. For such an ultrashort optical pulse, depolarization components resulting from second-order polarization-mode dispersion (PMD) become a dominant factor as regards signal distortion because of the broad signal bandwidth. The influence of inter-polarization crosstalk induced by second-order PMD, is presented in detail.

摘要

我们展示了使用亚皮秒差分四相相移键控（DQPSK）信号在300公里上实现2.56太比特/秒/通道的偏振复用单载波传输。我们采用了超快时域光学傅里叶变换技术来减少波形失真。对于如此超短的光脉冲，由于信号带宽较宽，二阶偏振模色散（PMD）导致的去偏振分量成为信号失真的主导因素。详细介绍了由二阶PMD引起的偏振间串扰的影响。