Abstract
Information transmission through fiber-optic channel is subjected to several impairments such as chromatic and polarization mode dispersion, nonlinear phase noise due to interaction of amplifier noise with fiber Kerr nonlinearity, and nonlinear effects such as self- and cross-phase modulation. In addition, laser phase noise and frequency offset between signal and local oscillators also degrade the received signal quality. Unless these impairments are mitigated, the performance of high data rate optical communication systems is degraded. We describe two approaches to mitigate fiber impairments in high data rate coherent optical communication systems. In the first approach, nonlinearity and dispersion in either fibers or semiconductors is used to undo the effects of transmission fiber on the optical carrier. We propose the use of mid-span spectral inversion, realized using counter-propagating dual pumped four-wave mixing in fibers, to mitigate dispersion and nonlinearity in 40 Gbps QPSK systems. We describe our work on realizing optical phase conjugation in semiconductor optical amplifiers. In the second approach, the optical signal is sampled after coherent reception and processed using digital signal processing algorithms to mitigate dispersion and nonlinearity. We describe Kalman filters to estimate and track phase noise in 100 Gbps QPSK systems. We also describe radial basis function neural network equalizer to mitigate nonlinearity in 80 Gbps 16 QAM CO-OFDM systems.
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References
The Zettabyte Era–Trends and Analysis (2016) White paper by Cisco Networks, Document ID: 1465272001812119
Kaminow IP, Li T, Willner AE (eds) (2013) Optical fiber telecommunications, vol 6B. Academic Press
Michael G (2009) Taylor: phase estimation methods for optical coherent detection using digital signal processing. J Lightwave Technol 27:901–914
Kumar S et al (2005) Effect of chromatic dispersion on nonlinear phase noise in optical transmission systems. Opt Lett 24:3278–3280
Zhou X, Xie C (eds) (2016) Enabling technologies for high spectral-efficiency coherent optical communication networks. Wiley-IEEE Press
Leven Andreas et al (2007) Frequency estimation in intradyne reception. IEEE Photonics Technol Lett 6:366–368
Kuschnerov Maxim et al (2009) DSP for coherent single-carrier receivers. J Lightwave Technol 27:3614–3622
Ho Keang-Po et al (2004) Electronic compensation technique to mitigate nonlinear phase noise. J Lightwave Technol 22:779–783
Kaminow IP, Li T, Willner AE (eds) (2013) Optical fiber telecommunications, vol 6A. Academic Press
Wabnitz S, Eggleton B (eds) (2015) All-Optical signal processing: data communications and storage applications. Springer
Yariv A et al (1979) Compensation for channel dispersion by nonlinear optical phase conjugation. Opt Lett 4:52–54
Jansen SL et al (2006) Long-haul DWDM transmission systems employing optical phase conjugation. J Lightwave Technol 12:505–520
Morshed MM et al (2013) Mid-span spectral inversion for coherent optical OFDM systems: fundamental limits to performance. J Lightwave Technol 31:58–66
Inoue K et al (1997) Spectral inversion with no wavelength shift based on four-wave mixing with orthogonal pump beams. Opt Lett 22:1772–1774
Corchia A et al (1999) Mid-span spectral inversion without frequency shift for fiber dispersion compensation: a system demonstration. IEEE Photonics Technol Lett 11:275–278
Jain Ankita, Kumar Krishnamurthy Pradeep (2016) Phase noise tracking and compensation in coherent optical systems using Kalman filter. IEEE Commun Lett 20:1072–1075
Haykin SO et al (2009) Neural networks and learning machines.Pearson Edition Ltd, New York, USA
Jarajreh MA et al (2015) Artificial neural network nonlinear equalizer for coherent optical OFDM. IEEE Photonics Technol Lett 27:387–390
Ahmad ST, Kumar KP (2016) Radial basis function neural network nonlinear equalizer for 16-QAM coherent optical OFDM. IEEE Photonics Technol Lett 28:2507–2510
Anchal A et al (2016) frequency-shift-free optical phase conjugation using counter-propagating dual pump four-wave mixing in fiber. J Opt 18:116–120
Anchal A et al (2016) Experimental demonstration of optical phase conjugation using counter-propagating dual pumped four-wave mixing in semiconductor optical amplifier. Opt Commun 369:106–110
Anchal A et al (2016) Mitigation of nonlinear effects through frequency shift free mid-span spectral inversion using counter-propagating dual pumped FWM in fiber. J Opt 18:105703
Janer CL, Connelly MJ et al (2011) Optical phase conjugation technique using four-wave mixing in semiconductor optical amplifier. Electron Lett 47
Grewal MS, Andrews AP (2001) Kalman filtering: theory and practice using MATLAB, (2nd ed)
Mecozzi A (2004) Probability density functions of the nonlinear phase noise. Opt Lett 29:673–675
Barletta Luca et al (2013) Bridging the gap between Kalman filter and Wiener filter in carrier phase tracking. IEEE Photonics Technol Lett 25:1035–1038
Ezra LP, Kahn JM (2008) Compensation of dispersion and nonlinear impairments using digital backpropagation. IEEE J Lightwave Technol 26:3416–3425
Ip Ezra, Kahn JM (2007) Digital equalization of chromatic dispersion and polarization mode dispersion. J Lightwave Technol 25:2033–2043
Giacoumidis E et al (2015) Fiber nonlinearity-induced penalty reduction in CO-OFDM by ANN-based nonlinear equalization. Opt Lett 40:5113–5116
Acknowledgements
The experiments on OPC in SOA were performed at the School of Electronic Engineering, Dublin City University, Dublin, Ireland in collaboration with Profs. Pascal Landais and P. Anandarajaiah and Dr. Sean O’Dull under the Marie Curie International Research Staff Exchange Scheme Fellowship within the 7th European community framework programme (Grant agreement number 318941). We are grateful to them for their support. We also acknowledge the support from Science Research and Engineering Board for the sponsored project (SERB/S3/EECE/011/2014).
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Anchal, A., Jain, A., Ahmad, S., Krishnamurthy, P.K. (2018). Nonlinearity Mitigation in Coherent Optical Communication Systems: All-Optical and Digital Signal Processing Approaches. In: Pradhan, A., Krishnamurthy, P. (eds) Selected Topics in Photonics. IITK Directions, vol 2. Springer, Singapore. https://doi.org/10.1007/978-981-10-5010-7_5
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DOI: https://doi.org/10.1007/978-981-10-5010-7_5
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