Simplified Backpropagation Equalization in WDM Coherent Polarization Multiplexed Systems

• Type: Article in International Conference Proceedings Book
• Date: 2009

Authors

H. M. Salgado (Author) FEUP; L. M. Pessoa (Author) Other; I. Darwazeh (Author) Other

Conference proceedings International

Title: ICTON: 2009 11TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS, VOLS 1 AND 2

Pages: 604-608

11th International Conference on Transparent Optical Networks

S Miguel, PORTUGAL, JUN 28-JUL 02, 2009

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 1 Citation

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-003-QDV

DOI: 10.1109/icton.2009.5185082

Abstract (EN): The digital equalization of fibre impairments in coherent optical communications allows for ultimate limits of spectral efficiency to be achieved, while reducing the cost and complexity compared to optical based solutions. Digital backpropagation (BP) was proposed recently as a reduced complexity approach for jointly compensating linear and non-linear impairments in single polarization coherent optical systems. Furthermore, polarization division multiplexed quadrature phase-shift keying (PDM-QPSK) has emerged as a promising format to increase spectral efficiency. Here we assess the performance of the simplified backpropagation equalization in both single channel and multiple channel transmission in combination with polarization multiplexing for different dispersion map configurations. It is shown that polarization multiplexing induces a degradation in performance due to cross-phase modulation polarization scattering, the backpropagation algorithm still overperforming linear equalization.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5