Single-channel 15.3 Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 8.3 bit/s/Hz.
Single-channel 15.3 Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 8.3 bit/s/Hz.
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单通道 15.3 Tbit/s、64 QAM 相干奈奎斯特脉冲传输距离超过 150 km,频谱效率为 8.3 bit/s/Hz。
DOI:
10.1364/oe.27.028952
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发表时间:
2019
期刊:
影响因子:
3.8
通讯作者:
M. Nakazawa
中科院分区:
文献类型:
--
作者:
Masato Yoshida;K. Kimura;Taro Iwaya;K. Kasai;T. Hirooka;M. Nakazawa
We report the first single-channel 15.3 Tbit/s, 1.28 Tbaud, 64 QAM transmission using 670 fs coherent Nyquist pulses. We newly constructed an optical gate to improve the signal-to-noise ratio (SNR) of the homodyne detection signal, a coherent spectral expansion technique, and an optical phase-locked loop (OPLL) circuit with a 0.6 deg. phase noise. We also constructed an active 70 fs timing stabilization circuit between the OTDM signal and Nyquist LO pulse to realize precise homodyne detection. With these new techniques, we successfully achieved a record speed of 15.3 Tbit/s in a single channel transmission over 150 km with a spectral efficiency of 8.3 bit/s/Hz.
影响因子:
2.5
作者:
Yoshida, Masato;Kasai, Keisuke;Nakazawa, Masataka
通讯作者:
Nakazawa, Masataka