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
M. Nakazawa
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Masato Yoshida;K. Kimura;Taro Iwaya;K. Kasai;T. Hirooka;M. Nakazawa

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我们报告了第一个使用 670 fs 相干奈奎斯特脉冲的单通道 15.3 Tbit/s、1.28 Tbaud、64 QAM 传输。我们新构建了一个光闸来提高零差检测信号的信噪比(SNR)、相干光谱扩展技术以及具有0.6度的光学锁相环(OPLL)电路。相位噪声。我们还在 OTDM 信号和 Nyquist LO 脉冲之间构建了一个有源 70 fs 定时稳定电路,以实现精确的零差检测。通过这些新技术,我们成功实现了超过150km的单通道传输速度达到创纪录的15.3Tbit/s,频谱效率达到8.3bit/s/Hz。
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.
DOI: 10.1109/jqe.2007.901289
发表时间: 2007-07-01
影响因子: 2.5
作者:
Yoshida, Masato;Kasai, Keisuke;Nakazawa, Masataka
通讯作者: Nakazawa, Masataka