Athanasios Vgenis

Learn More
We compare three quadrature imbalance compensation algorithms for coherent PDM-QPSK systems, including a novel, blind, adaptive equalizer. We show that dedicated quadrature imbalance compensation is mandatory and cannot be performed by regular distortion mitigating equalizers. 1. Introduction Coherent phase-diversity receivers suffer from quadrature(More)
—Polarization division multiplexed (PDM) quadra-ture phase-shift keying (QPSK) coherent optical systems employ blind adaptive linear electronic equalizers for polarization-mode dispersion (PMD) compensation. In this paper, we compute the performance of various adaptive, fractionally spaced, feed-forward electronic equalizers, using the outage probability as(More)
In coherent optical systems, apart from fiber chromatic dispersion and polarization mode dispersion, transmitter and local oscillator phase noise and intermediate frequency offset also have a significant impact on the systempsilas performance. We study, by simulation, the performance of adaptive equalization, assisted by a recursive phase noise-removing(More)
  • 1