Open AccessXPM reduction in hybrid 10G/40G transmission using 10-Gb/s narrow-filtered DPSK modulation
Author(s) -
Marco Bertolini,
P. Serena,
N. Rossi,
A. Boi
Publication year - 2009
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.005919
Subject(s) - optics , phase shift keying , keying , quadrature amplitude modulation , differential phase , modulation (music) , phase modulation , cross phase modulation , self phase modulation , amplitude and phase shift keying , transmission (telecommunications) , physics , optical communication , wavelength division multiplexing , materials science , computer science , phase noise , telecommunications , bit error rate , nonlinear optics , decoding methods , wavelength , laser , acoustics
We propose a possible improvement for optical hybrid transmission systems, based on 40G differential quadrature shift Keying (DQPSK) and 10G differential phase shift keying (DPSK) received by means of a Gaussian narrow filter. We report a reduced cross phase modulation (XPM), at the cost of a slightly more complex setup. This technique is especially effective for systems with low inline dispersion and offers similar performances on different types of fiber.