Multi-span digital non-linear compensation for dual-polarization quadrature phase shift keying long-haul communication system

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

Publication Language: English

Publication Type: Journal article

Publication year: 2012

Journal

Optics Communications Elsevier

Publisher: Elsevier

Book Volume: 285

Pages Range: 1814-1818

Journal Issue: 7

DOI: 10.1016/j.optcom.2011.11.120

Abstract

We have numerically investigated a method to reduce the complexity of the digital backward propagation algorithm (DBP). A filtered logarithmic step-size based split-step Fourier method (SSFM) is investigated in this paper to digitally compensate chromatic dispersion (CD) and non-linearities (NL) in dual-polarization quadrature phase shift keying (DP-QPSK) systems. The algorithm was evaluated for coherently-detected multiple channel DP-QPSK system over un-compensated transmission links with diverse baud-rates i.e. 14 GBaud, 28 GBaud and 56 GBaud. The results depict efficient mitigation of CD and NL, therefore improving the non-linear threshold point (NLT) by 4 dB. Furthermore by implementing a low-pass-filter (LPF) in each DBP stage, the required number of DBP stages are significantly reduced (multi-span DBP) by 75%. The results delineate improved system performance of logarithmic step size based filtered DBP (FL-DBP) both in terms of efficiency and complexity which will be helpful in future deployment of DBP algorithm with real-time signal processing modules for non-linear compensation. © 2011 Elsevier B.V. All rights reserved.

Authors with CRIS profile

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

How to cite

APA:

Schmauß, B., Holtmannspötter, M., Lin, C.-Y., & Asif, R. (2012). Multi-span digital non-linear compensation for dual-polarization quadrature phase shift keying long-haul communication system. Optics Communications, 285(7), 1814-1818. https://dx.doi.org/10.1016/j.optcom.2011.11.120

MLA:

Schmauß, Bernhard, et al. "Multi-span digital non-linear compensation for dual-polarization quadrature phase shift keying long-haul communication system." Optics Communications 285.7 (2012): 1814-1818.

BibTeX: Download