Nonlinear Mitigation using Carrier Phase Estimation and Digital Backward Propagation in Coherent QAM Transmission

Lin CY, Asif R, Holtmannspötter M, Schmauß B (2012)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2012

Journal

Optics Express Optical Society of America

Edited Volumes: Optics Express

Book Volume: 20

Pages Range: B405-B412

Conference Proceedings Title: Proceedings of the 38th European Conference and Exhibition on Optical Communication (ECOC)

DOI: 10.1364/OE.20.00B405

Abstract

We investigate the performance of carrier phase estimation (CPE) and digital backward propagation (DBP) in compensating fiber nonlinearity for 224Gbps polarization-multiplexed quadrature-amplitudemodulation coherent systems with level of 4 and 16 (PM-4-QAM and PM-16-QAM) over standard single-mode fiber (SSMF) uncompensated link. The results from numerical simulation show the individual performance of CPE and DBP as well as their mutual influence. With DBP compensation, required CPE tap number for optimal performance can be reduced by 50% for 4-QAM signal and 67% for 16-QAM signal compared to linear compensation. On the other hand, employing CPE compensation after DBP also allows to reduce DBP steps. In the mentioned PM-16-QAM system, 60% reduction in the required number of DBP steps to achieve BER=10-3 is possible, with a step-size of 200km, which reveals great potential to reduce the complexity for future real time implementation. © 2012 Optical Society of America.

Authors with CRIS profile

Chien-Yu Lin Lehrstuhl für Hochfrequenztechnik Muhammad Rameez Asif Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik Michael Holtmannspötter Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik Bernhard Schmauß Professur für Hochfrequenztechnik mit dem Schwerpunkt Optische Hochfrequenztechnik und Photonik

How to cite

APA:

Lin, C.-Y., Asif, R., Holtmannspötter, M., & Schmauß, B. (2012). Nonlinear Mitigation using Carrier Phase Estimation and Digital Backward Propagation in Coherent QAM Transmission. In Proceedings of the 38th European Conference and Exhibition on Optical Communication (ECOC) (pp. B405-B412).

MLA:

Lin, Chien-Yu, et al. "Nonlinear Mitigation using Carrier Phase Estimation and Digital Backward Propagation in Coherent QAM Transmission." Proceedings of the Proceedings of the 38th European Conference and Exhibition on Optical Communication (ECOC) 2012. B405-B412.

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