Marked performance improvement of 256 QAM transmission using a digital back-propagation method

Kazushi Toyoda; Yuki Koizumi; Tatsunori Omiya; Masato Yoshida; Toshihiko Hirooka; Masataka Nakazawa

doi:10.1364/OE.20.019815

Marked performance improvement of 256 QAM transmission using a digital back-propagation method

Kazushi Toyoda, Yuki Koizumi, Tatsunori Omiya, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We demonstrate substantial performance improvements in 256 QAM transmission in terms of both data rate and distance that we realized by using a digital back-propagation (DBP) method. 160 Gbit/s-160 km and 64 Gbit/s-560 km transmissions were successfully achieved with a polarization-multiplexed 256 QAM signal, in which the symbol rate and transmission distance were greatly increased by compensating for the interplay between dispersion and nonlinearity, which is responsible for the transmission impairment especially for a higher symbol rate and longer distance.

Original language	English
Pages (from-to)	19815-19821
Number of pages	7
Journal	Optics Express
Volume	20
Issue number	18
DOIs	https://doi.org/10.1364/OE.20.019815
Publication status	Published - 2012 Aug 27

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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AU - Hirooka, Toshihiko

AU - Nakazawa, Masataka

PY - 2012/8/27

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AB - We demonstrate substantial performance improvements in 256 QAM transmission in terms of both data rate and distance that we realized by using a digital back-propagation (DBP) method. 160 Gbit/s-160 km and 64 Gbit/s-560 km transmissions were successfully achieved with a polarization-multiplexed 256 QAM signal, in which the symbol rate and transmission distance were greatly increased by compensating for the interplay between dispersion and nonlinearity, which is responsible for the transmission impairment especially for a higher symbol rate and longer distance.

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Marked performance improvement of 256 QAM transmission using a digital back-propagation method

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