在仅使用掺铒光纤放大器（EDFA）的情况下，在2800公里的标准单模光纤（SMF-28）上进行108.4千兆波特偏振复用四相相移键控（PDM-QPSK）信号（40×433.6吉比特/秒）的波分复用（WDM）传输。

WDM transmission of 108.4-Gbaud PDM-QPSK signals (40 × 433.6-Gb/s) over 2800-km SMF-28 with EDFA-only.

作者信息

Li Xinying, Yu Jianjun, Dong Ze, Chien Hung-Chang, Jia Zhensheng, Chi Nan

机构信息

Department of Communication Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China.

出版信息

Opt Express. 2012 Dec 10;20(26):B217-22. doi: 10.1364/OE.20.00B217.

DOI:10.1364/OE.20.00B217

PMID:23262854

Abstract

We experimentally demonstrated the transmission of 40 × 433.6-Gb/s Nyquist wavelength-division-multiplexing (N-WDM) optical time-division-multiplexing (OTDM) over 2800-km single-mode fiber (SMF)-28 with Erbium-doped fiber amplifier (EDFA)-only amplification, adopting polarization-division-multiplexing carrier-suppressed return-to-zero quadrature-phase-shift-keying (PDM-CSRZ-QPSK) modulation as well as post filter and 1-bit maximum likelihood sequence estimation (MLSE). Each channel occupies 100 GHz, yielding a spectral efficiency of 4.05 b/s/Hz. The bit-error ratio (BER) of all channels is less than the pre-forward-error-correction (pre-FEC) limit of 3.8 × 10(-3) after 2800-km SMF-28 transmission.

摘要

我们通过实验证明了采用偏振复用载波抑制归零四相相移键控（PDM-CSRZ-QPSK）调制以及后置滤波器和1比特最大似然序列估计（MLSE），在仅使用掺铒光纤放大器（EDFA）放大的2800公里单模光纤（SMF）-28上传输40×433.6-Gb/s奈奎斯特波分复用（N-WDM）光时分复用（OTDM）信号。每个信道占用100GHz，频谱效率达到4.05b/s/Hz。在2800公里SMF-28传输后，所有信道的误码率（BER）均低于前向纠错（pre-FEC）极限3.8×10(-3)。