Effective Mitigation of Non-linearities Using Extended Kalman Filtering for Dispersion Managed Links

Pakala L, Schmauß B (2016)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2016

Event location: Leipzig DE

Abstract

We investigate our proposed carrier phase and amplitude noise estimation (CPANE) algorithm using extended Kalman filter (EKF) for mitigation of non-linearities as well as ASE induced phase and amplitude distortions, in fully compensated periodic dispersion managed (DM) links employing standard single mode fiber (SSMF) and dispersion compensating fiber (DCF). Numerical simulations were carried out on a 224 Gb/s polarization multiplexed (PM) 16-quadrature amplitude modulation (QAM) coherent transmission system for DM links with varying launch power and transmission distance, in this study. The non-linear mitigation performance of EKF-CPANE is compared to that of conventional single step non-linear (SSNL) compensation. Numerical results show that EKF-CPANE exhibits slightly improved performance compared to SSNL compensation method. We further investigate the combined performance of these two methods by employing EKF-CPANE after SSNL compensation for the mitigation of residual non-linear distortions. As a result, an enhanced tolerance towards non-linearities of up to 2 dB can be obtained. Moreover, the combination of SSNL compensation and EKF-CPANE is quite feasible for real-time implementations since each method requires only few complex multiplications to recover one symbol.

Authors with CRIS profile

Lalitha Pakala 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:

Pakala, L., & Schmauß, B. (2016). Effective Mitigation of Non-linearities Using Extended Kalman Filtering for Dispersion Managed Links. In Proceedings of the ITG Fachtagung Photonische Netze. Leipzig, DE.

MLA:

Pakala, Lalitha, and Bernhard Schmauß. "Effective Mitigation of Non-linearities Using Extended Kalman Filtering for Dispersion Managed Links." Proceedings of the ITG Fachtagung Photonische Netze, Leipzig 2016.

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