Single-Laser 32.5 Tbit/s Nyquist WDM Transmission

Single-Laser 32.5 Tbit/s Nyquist WDM Transmission
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DOI:
10.1364/jocn.4.000715
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发表时间:
2012-10-01
影响因子:
5
通讯作者:
Leuthold, Juerg
Leuthold, Juerg
中科院分区:
计算机科学1区
文献类型:
--
作者:
Hillerkuss, David;Schmogrow, Rene;Leuthold, Juerg

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我们演示了单激光器32.5 Tbit/s的16 QAM奈奎斯特波分复用传输超过227公里的SMF-28没有光色散补偿的总长度。从单个激光器获得325个光载波,并使用sinc-shaped奈奎斯特脉冲用双偏振16 QAM数据编码。由于我们不使用保护频带,因此载波具有等于数据的符号速率或奈奎斯特带宽的12.5GHz的间隔。我们实现了6.4位/秒/赫兹的净频谱效率使用软件定义的发射机,它产生的电驱动信号的电光调制器在真实的时间。
We demonstrate single-laser 32.5 Tbit/s 16QAM Nyquist wavelength division multiplexing transmission over a total length of 227 km of SMF-28 without optical dispersion compensation. A number of 325 optical carriers is derived from a single laser and encoded with dual-polarization 16QAM data using sinc-shaped Nyquist pulses. As we use no guard bands, the carriers have a spacing of 12.5 GHz equal to the symbol rate or Nyquist bandwidth of the data. We achieve a net spectral efficiency of 6.4 bit/s/Hz using a software-defined transmitter, which generates the electric drive signals for the electro-optic modulator in real time.