Span length and information rate optimisation in optical transmission systems using single-channel digital backpropagation.

The optimisation of span length when designing optical communication systems is important from both performance and cost perspectives. In this paper, the optimisation of inter-amplifier spacing and the potential increase of span length at fixed information rates in optical communication systems with practically feasible nonlinearity compensation schemes have been investigated. It is found that in DP-16QAM, DP-64QAM and DP-256QAM systems with practical transceiver noise limitations, single-channel digital backpropagation can allow a 50% reduction in the number of amplifiers without sacrificing information rates compared to systems with optimal span lengths and linear compensation.

[1]  M. Feder,et al.  New bounds on the capacity of the nonlinear fiber-optic channel. , 2014, Optics letters.

[2]  A. Carena,et al.  Suppression of spurious tones induced by the split-step method in fiber systems simulation , 2000, IEEE Photonics Technology Letters.

[3]  Atsushi Takada,et al.  High gain two-stage amplification with erbium-doped fibre amplifier , 1990 .

[4]  J.-M.P. Delavaux,et al.  Multi-stage erbium-doped fiber amplifier designs , 1995 .

[5]  Cristian B. Czegledi,et al.  On the limits of digital back-propagation in the presence of transceiver noise. , 2017, Optics express.

[6]  Polina Bayvel,et al.  Achievable information rates estimates in optically-amplified transmission systems using nonlinearity compensation and probabilistic shaping , 2017, Optics letters.

[7]  E. Forestieri,et al.  Achievable Information Rate in Nonlinear WDM Fiber-Optic Systems With Arbitrary Modulation Formats and Dispersion Maps , 2013, Journal of Lightwave Technology.

[8]  P. Winzer,et al.  Capacity Limits of Optical Fiber Networks , 2010, Journal of Lightwave Technology.

[9]  Rameez Asif,et al.  Impact of channel baud-rate on logarithmic digital backward propagation in DP-QPSK system with uncompensated transmission links , 2011 .

[10]  P. Winzer,et al.  On the Limits of Digital Back-Propagation in Fully Loaded WDM Systems , 2016, IEEE Photonics Technology Letters.

[11]  Grell,et al.  On the Limits of Digital BackPropagation in the Presence of Transceiver Noise , 2016 .

[12]  J. Kahn,et al.  Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation , 2008, Journal of Lightwave Technology.

[13]  Henk Wymeersch,et al.  On nonlinearly-induced noise in single-channel optical links with digital backpropagation. , 2013, Optics express.

[14]  R. Essiambre,et al.  Nonlinear Shannon Limit in Pseudolinear Coherent Systems , 2012, Journal of Lightwave Technology.

[15]  Guifang Li,et al.  Folded digital backward propagation for dispersion-managed fiber-optic transmission. , 2011, Optics express.

[16]  Maxim Kuschnerov,et al.  Digital Fiber Nonlinearity Compensation: Toward 1-Tb/s transport , 2014, IEEE Signal Processing Magazine.

[17]  A. Yariv.  Signal-to-noise considerations in fiber links with periodic or distributed optical amplification. , 1990, Optics letters.

[18]  M. Feder,et al.  Accumulation of nonlinear interference noise in fiber-optic systems. , 2013, Optics express.

[19]  P. Poggiolini,et al.  A Simple and Effective Closed-Form GN Model Correction Formula Accounting for Signal Non-Gaussian Distribution , 2014, Journal of Lightwave Technology.

[20]  Junho Cho,et al.  Trans-Atlantic field trial using probabilistically shaped 64-QAM at high spectral efficiencies and single-carrier real-time 250-Gb/s 16-QAM , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).

[21]  Polina Bayvel,et al.  Maximizing the optical network capacity , 2016, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[22]  P. Poggiolini,et al.  On the Performance of Nyquist-WDM Terabit Superchannels Based on PM-BPSK, PM-QPSK, PM-8QAM or PM-16QAM Subcarriers , 2011, Journal of Lightwave Technology.

[23]  Erwan Pincemin,et al.  Optimal span length in high-speed transmission systems with hybrid Raman-erbium-doped fiber amplification. , 2005, Optics letters.

[24]  Polina Bayvel,et al.  Information Rates of Next-Generation Long-Haul Optical Fiber Systems Using Coded Modulation , 2016, Journal of Lightwave Technology.

[25]  Polina Bayvel,et al.  On Achievable Rates for Long-Haul Fiber-Optic Communications , 2015, Optics express.

[26]  Danish Rafique,et al.  Fiber Nonlinearity Compensation: Commercial Applications and Complexity Analysis , 2016, Journal of Lightwave Technology.

[27]  Gunnar Jacobsen,et al.  Chromatic dispersion compensation in coherent transmission system using digital filters. , 2010, Optics express.

[28]  Maxim Kuschnerov,et al.  Reduced Complexity Digital Back-Propagation Methods for Optical Communication Systems , 2014, Journal of Lightwave Technology.

[29]  Polina Bayvel,et al.  Modulation format dependence of digital nonlinearity compensation performance in optical fibre communication systems. , 2017, Optics express.

[30]  A D Ellis,et al.  Minimising total energy requirements in amplified links by optimising amplifier spacing. , 2014, Optics express.

[31]  Jianjun Yu,et al.  Transmission of 200 G PDM-CSRZ-QPSK and PDM-16 QAM With a SE of 4 b/s/Hz , 2013, Journal of Lightwave Technology.