Open AccessUltrahigh-speed “orthogonal” TDM transmission with an optical Nyquist pulse train
Author(s) -
Masataka Nakazawa,
Toshihiko Hirooka,
Peng Ruan,
Pengyu Guan
Publication year - 2012
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.20.001129
Subject(s) - intersymbol interference , nyquist isi criterion , optics , nyquist–shannon sampling theorem , pulse shaping , physics , transmission (telecommunications) , computer science , electronic engineering , telecommunications , decoding methods , engineering , laser
We propose a novel "orthogonal" TDM transmission scheme using an optical Nyquist pulse that enables us to achieve an ultrahigh data rate and spectral efficiency simultaneously without any intersymbol interference (ISI). We analytically describe the principle of orthogonal TDM, and demonstrate a 160 Gbaud optical orthogonal TDM transmission using 40 GHz optical Nyquist pulses. Tolerance to GVD and the dispersion slope is significantly improved by virtue of the orthogonality, reduced bandwidth, and minimum ISI.