Orthogonal chirp-division multiplexing for IM/DD-based short-reach systems

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dc.contributor.authorOuyang, Xing
dc.contributor.authorTalli, Giuseppe
dc.contributor.authorPower, Mark
dc.contributor.authorTownsend, Paul
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2019-09-23T10:14:35Z
dc.date.available2019-09-23T10:14:35Z
dc.date.issued2019-08-02
dc.description.abstractOrthogonal chirp-division multiplexing (OCDM) has been recently proposed as an attractive modulation technique for realizing high-speed coherent lightwave systems in virtue of its resilience against system impairments. However, the complex-valued OCDM signal is not directly viable for optical intensity modulation and direct detection (IM/DD) systems. In this paper, a double-sideband (DSB)-modulated OCDM scheme is proposed for short-reach, high-speed IM/DD systems. In the proposed scheme, the real-valued OCDM signal is generated by a simple digital up-conversion technique, which converts the complex-baseband signal to a passband to avoid the aliasing for DSB modulation. At the receiver, inverse operations revert the signal back to the baseband for demodulation. Experiments were carried out to validate the feasibility and advantages of the proposed scheme, and OCDM signals with data rates up to 174.5 Gbit/s were successfully demonstrated. The results confirm that the proposed IM/DD-OCDM system is more robust to impairments and thus achieves better performance than a discrete multi-tone system.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationOuyang, X., Talli, G., Power, M. and Townsend, P. (2019) 'Orthogonal chirp-division multiplexing for IM/DD-based short-reach systems', Optics Express, 27(16), pp. 23620-23632. (12pp.) DOI: 10.1364/OE.27.023620en
dc.identifier.doi10.1364/OE.27.023620en
dc.identifier.eissn1094-4087
dc.identifier.endpage23632en
dc.identifier.issued16en
dc.identifier.journaltitleOptics Expressen
dc.identifier.startpage23620en
dc.identifier.urihttps://hdl.handle.net/10468/8596
dc.identifier.volume27en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Investigator Programme/12/IA/1270/IE/Next Generation Photonic Access and Data Communication Systems/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/en
dc.relation.urihttps://www.osapublishing.org/oe/abstract.cfm?uri=oe-27-16-23620
dc.rights©2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreementen
dc.rights.urihttps://doi.org/10.1364/OA_License_v1en
dc.subjectFiber optic communicationsen
dc.subjectOptical amplifiersen
dc.subjectOptical networksen
dc.subjectOptical transceiversen
dc.subjectSignal processingen
dc.subjectSignal recoveryen
dc.titleOrthogonal chirp-division multiplexing for IM/DD-based short-reach systemsen
dc.typeArticle (peer-reviewed)en
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