Yu Jianjun, Zhou Xiang, Huang Ming-Fang, Qian Dayou, Ji Philip N, Wang Ting, Magill Peter
NEC Laboratories America, Princeton, NJ 08540, USA.
Opt Express. 2009 Sep 28;17(20):17928-33. doi: 10.1364/OE.17.017928.
We have generated 4 x 100-Gb/s orthogonal WDM optical signal by employing polarization-division-multiplexed (PDM) return-to-zero (RZ) QPSK modulation format and tight optical filtering technique. The required optical signal-to-noise ratio (OSNR) at bit error ratio (BER) of 2 x 10(-3) for the 400 Gb/s orthogonal DWDM signal is measured to be approximately 22.8 dB/0.1 nm. After transmission over 1040-km standard single mode fiber (EDFA-only amplification, 80-km amplifier span and fully receiver-side electrical dispersion compensation), the measured BER for all the four orthogonal subchannels are smaller than 2 x 10(-3).
我们通过采用偏振复用归零（PDM-RZ）四相相移键控（QPSK）调制格式和紧密光学滤波技术，生成了4×100 Gb/s的正交波分复用（WDM）光信号。对于400 Gb/s正交密集波分复用（DWDM）信号，在误码率（BER）为2×10⁻³时所需的光信噪比（OSNR）测量值约为22.8 dB/0.1 nm。在通过1040公里标准单模光纤传输后（仅采用掺铒光纤放大器（EDFA）放大，放大器跨度为80公里且在接收端进行完全电色散补偿），所有四个正交子信道的测量误码率均小于2×10⁻³。
