Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data

AUTOR(ES)

Portela, Thiago F., Souto, Diego V., Rozental, Valery N., Ferreira, Hugo B., Mello, Darli A. A., Griesser, Helmut

FONTE

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

DATA DE PUBLICAÇÃO

2011-06

RESUMO

This paper evaluates several signal processing techniques for optical dual-polarization quadrature phase-shift keying (DP-QPSK) coherent receivers, using offline post-processing of experimental data. In addition to electronically separating the two polarization multiplexed signals, the investigated signal processing algorithms also compensate for chromatic dispersion (CD) and polarization mode dispersion (PMD). In particular, we investigate two distinct architectures: 1) Constant modulus algorithm (CMA) equalization followed by feedforward phase recovery. 2) Decision-directed least mean square (DD-LMS) equalization combined with decision-directed phase recovery. The interplay of both architectures with bulk dispersion compensators and carrier recovery algorithms is also analyzed.

Documentos Relacionados

• Caracterização espectral e avaliação de desempenho para formatos avançados de modulação digital optica em 40 Gb/s
• Transmission of a 20 Gb/s NRZ OOK signal throughout a 390 km fiber link and a cascade of 11 x 50 GHz filters and 9 x EDFAs
• Experimental optical generation of DP-16QAM modulation format for high spectral efficiency optical transmission
• Análise comparativa de formatos de modulação OOK, DPSK e DQPSK para sistemas de fibras ópticas operando a taxas de 40 Gb/s
• Experimental analysis of all-optical 4-ASK signal generation through parametric amplification