Open AccessDemonstration of PAM4-OCDM system with electrical amplitude-level pre-tuning and post-equalization for data centers applications
Author(s) -
Takahiro Kodama,
Tetsuya Miyazaki,
Masanori Hanawa,
Akihiro Maruta,
Naoya Wada,
Gabriella Cincotti,
Kenichi Kitayama
Publication year - 2019
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.27.011227
Subject(s) - computer science , multiplexing , electronic engineering , optics , equalization (audio) , encoder , digital signal processing , amplitude , signal processing , physics , telecommunications , decoding methods , engineering , computer hardware , operating system
A PAM4-OCDM system with optical multi-/demultiplexing and electrical pre-/post-processing is proposed for short-reach applications. We experimentally demonstrate, for the first time, a power-efficient 4 OC x 10 GSymbol/s PAM4-OCDM system. The four PSK-OCs are simultaneously generated using a single light source and a passive multiport optical encoder and received by a single optical decoder and cascaded DSP. The effectiveness of the electrical-domain amplitude level pre-tuning and post-equalizer are demonstrated, considering different values of shot and beat noises.