Open AccessReal-time measurements of a 40 Gb/s coherent system
Author(s) -
Han Sun,
Kuang-Tsan Wu,
Kim Roberts
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.000873
Subject(s) - optics , polarization mode dispersion , phase shift keying , phase modulation , quadrature amplitude modulation , physics , polarization (electrochemistry) , polarization division multiplexing , keying , optical communication , dispersion (optics) , phase noise , bit error rate , computer science , wavelength division multiplexing , telecommunications , wavelength , decoding methods , chemistry
Continuous real-time measurements are shown from a coherent 40 Gb/s transmission system that uses Dual-Polarization Quadrature Phase Shift Keying (DP-QPSK) modulation. Digital compensation is used for dispersion and polarization effects, with little performance degradation created by 150 ps of rapidly varying 1st-order PMD.