We introduce a flexible, software-defined real-time multi-modulation format receiver implemented on an off-the-shelf general-purpose graphics processing unit (GPU). The flexible receiver is able to process 2 GBaud 2-, 4-, 8-, and 16-ary pulse-amplitude modulation (PAM) signals as well as 1 GBaud 4-, 16- and 64-ary quadrature amplitude modulation (QAM) signals, with the latter detected using a Kramers-Kronig (KK) coherent receiver. Experimental performance evaluation is shown for back-to-back. In addition, by using the JGN high speed R&D network testbed, performance is evaluated after transmission over 91 km field-deployed optical fiber and reconfigurable optical add-drop multiplexers (ROADMs).
@article{arxiv.2011.13695,
title = {Field Trial of a Flexible Real-time Software-defined GPU-based Optical Receiver},
author = {Sjoerd van der Heide and Ruben S. Luis and Benjamin J. Puttnam and Georg Rademacher and Ton Koonen and Satoshi Shinada and Yohinari Awaji and Hideaki Furukawa and Chigo Okonkwo},
journal= {arXiv preprint arXiv:2011.13695},
year = {2021}
}
Comments
Accepted for publication at Journal of Lightwave Technology, already available via JLT Early Access, see supplied DOI. This v2 version of the article is improved w.r.t. v1 after JLT peer-review. This article is a longer journal version of the conference paper: S.P. van der Heide, et al., Real-time, Software-Defined, GPU-Based Receiver Field Trial, ECOC 2020 paper We1E5, also via arXiv:2010.14333