400 Gbit/s 256 QAM-OFDM transmission over 720 km with a 14 bit/s/Hz spectral efficiency by using high-resolution FDE | Zendy

Tatsunori Omiya | Zendy; Masato Yoshida | Zendy; Masataka Nakazawa | Zendy

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400 Gbit/s 256 QAM-OFDM transmission over 720 km with a 14 bit/s/Hz spectral efficiency by using high-resolution FDE

Author(s) -

Tatsunori Omiya,

Masato Yoshida,

Masataka Nakazawa

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.002632

Subject(s) - orthogonal frequency division multiplexing , quadrature amplitude modulation , polarization division multiplexing , qam , optics , transmission (telecommunications) , multiplexing , spectral efficiency , bit error rate , electronic engineering , physics , computer science , telecommunications , wavelength division multiplexing , channel (broadcasting) , engineering , wavelength

We demonstrate 400 Gbit/s frequency-division-multiplexed and polarization-division-multiplexed 256 QAM-OFDM transmission over 720 km with a spectral efficiency of 14 bit/s/Hz by using high-resolution frequency domain equalization (FDE) and digital back-propagation (DBP) methods. A detailed analytical evaluation of the 256 QAM-OFDM transmission is also provided, which clarifies the influence of quantization error in the digital coherent receiver on the waveform distortion compensation with DBP.

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