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

Thiago F. Portela et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo

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Author / responsible party
Thiago F. Portela et al
Publisher
Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
ISSN
2179-1074
ISSN
2179-1074
Language
English

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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.

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APA 7

al, T. F. P. E. (s. f.). Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data. https://doi.org/10.1590/S2179-10742011000100016

MLA

al, Thiago F. Portela et. "Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data.". https://doi.org/10.1590/S2179-10742011000100016.

Chicago

al, Thiago F. Portela et. s. f. "Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data.". https://doi.org/10.1590/S2179-10742011000100016.

Harvard

al, T. F. P. E. s. f, Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data, Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo, available at: https://doi.org/10.1590/S2179-10742011000100016 [Accessed 7 Aug. 2026].

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Title
Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data
Author / contributors
Thiago F. Portela et al
Publisher
Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo
ISSN
2179-1074
ISSN
2179-1074
Language
English

Subjects

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Blind equalization; coherent receiver; optical communications; polarizations demultiplexing
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