Impact of signal-ASE four-wave mixing on the effectiveness of digital back-propagation in 112 Gb/s PM-QPSK systems.
Danish Rafique,Andrew D. Ellis +1 more
TLDR
A significant performance constraint is identified, originating from four-wave mixing between signals and amplified spontaneous emission noise which induces a linear increase in the standard deviation of the received field with signal power, and linear dependence on transmission distance.Abstract:
Limitations in the performance of coherent transmission systems employing digital back-propagation due to four-wave mixing impairments are reported for the first time. A significant performance constraint is identified, originating from four-wave mixing between signals and amplified spontaneous emission noise which induces a linear increase in the standard deviation of the received field with signal power, and linear dependence on transmission distance.read more
Citations
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Journal ArticleDOI
From Scaling Disparities to Integrated Parallelism: A Decathlon for a Decade
Peter J. Winzer,David T. Neilson +1 more
TL;DR: The identification of fundamental scaling disparities between the technologies used to generate and process data and those used to transport data could lead to the data transport network falling behind its required capabilities by a factor of approximately 4 every five years, leading to an optical network capacity crunch.
Journal ArticleDOI
Performance limits in optical communications due to fiber nonlinearity
TL;DR: How predictions were made from the outset of research in laser based optical communications and how they have evolved to their present form, accurately predicting the performance of coherently detected communication systems are described.
Journal ArticleDOI
On the performance of multichannel digital backpropagation in high-capacity long-haul optical transmission.
TL;DR: The performance of digital backpropagation (DBP) equalization when applied over multiple channels to compensate for the nonlinear impairments in optical fiber transmission systems is investigated and the effectiveness of the algorithm is evaluated.
Journal ArticleDOI
Nonlinear Interference Mitigation: Methods and Potential Gain
Ronen Dar,Peter J. Winzer +1 more
TL;DR: In this paper, the potential benefits of digital nonlinearity compensation (NLC) techniques in fully loaded coherent wavelength-division multiplexed (WDM) transmission systems were explored. And the authors showed that while the BP gain is similar to single-carrier systems, PPRN removal can have a much stronger effect, particularly for higher order QAM systems, implying that SCM can be advantageous not only for constant modulus formats such as QPSK, but also for high spectral efficiency systems.
Proceedings ArticleDOI
Exceeding the nonlinear-shannon limit using raman laser based amplification and optical phase conjugation
Ian Phillips,Mingming Tan,Marc Stephens,Mary E. McCarthy,Elias Giacoumidis,Stelios Sygletos,Pawel Rosa,Simon J. Fabbri,Son Thai Le,Thavamaran Kanesan,Sergey Turitsyn,Nick Doran,Paul Harper,Andrew D. Ellis +13 more
TL;DR: It is demonstrated that a combination of Raman laser based amplification and optical phase conjugation enables transmission beyond the nonlinear-Shannon limit.
References
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Journal ArticleDOI
Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation
Ezra Ip,Joseph M. Kahn +1 more
TL;DR: In this article, the use of digital backpropagation (BP) in conjunction with coherent detection to jointly mitigate dispersion and fiber nonlinearity is studied. But the authors focus on the noniterative asymmetric split-step Fourier method (SSFM) for solving the inverse nonlinear Schrodinger equation (NLSE).
Journal ArticleDOI
Random walk of coherently amplified solitons in optical fiber transmission
James P. Gordon,Hermann A. Haus +1 more
TL;DR: It is shown that amplifier noise causes a soliton's group velocity to undergo a random-walk process, which limits the system's product of length times bit rate, in one example, to about 24 000 GHz-km.
Journal ArticleDOI
Phase noise in photonic communications systems using linear amplifiers
TL;DR: The question of phase detection in photonic communications systems that use linear optical amplifiers is considered, owing to the nonlinear Kerr effect in the transmission fiber, which limits the capacity and range of such systems to a range of a few thousand kilometers.
Journal ArticleDOI
Nonlinear limits to the information capacity of optical fibre communications.
TL;DR: This work uses a key simplification to investigate the theoretical limits to the information capacity of an optical fibre arising from these nonlinearities and relates the nonlinear channel to a linear channel with multiplicative noise, for which it is able to obtain analytical results.
Posted Content
Nonlinear limits to the information capacity of optical fiber communications
TL;DR: In this article, the authors show that the capacity of the nonlinear information channel of an optical fiber does not grow indefinitely with increasing signal power, but has a maximal value, which is the same as that of a linear channel with multiplicative noise.
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Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation
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