Polarization- and temperature-insensitive 8x400GHz O-band cascaded AWG for large radix data center and AI/ML networks

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dc.contributor.authorPalmer, Roberten
dc.contributor.authorBulthuis, Henken
dc.contributor.authorAntony, Cleitusen
dc.contributor.authorZvěřina, Jakuben
dc.contributor.authorBeelen, Gunteren
dc.contributor.authorSarkis, Jaden
dc.contributor.authorBhatti, AbuBakaren
dc.contributor.authorTalli, Giuseppeen
dc.contributor.authorKuschnerov, Maximen
dc.contributor.funderHorizon 2020en
dc.date.accessioned2025-12-16T12:12:13Z
dc.date.available2025-12-16T12:12:13Z
dc.date.issued2025en
dc.description.abstractWe demonstrate a PLC-based O-Band 8-channel cascaded AWG design. The manufactured prototypes achieve 400 GHz channel spacing while simultaneously reaching a 1 dB bandwidth of 300 GHz and a crosstalk below -40 dB. The measured fiber-to-fiber loss is as low as 2.7 dB and the PDL is below 0.2 dB. We determine a low thermal drift of -1.8 GHz/Kelvin. The combination of low IL, high bandwidth, low crosstalk, and low thermal drift make the device particularly attractive for WDM-based data center and AI networks architectures that benefit from a large network switch radix.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPalmer, R., Bulthuis, H., Antony, C., Zvěřina, J., Beelen, G., Sarkis, J., Bhatti, A., Talli, G. and Kuschnerov, M. (2025) 'Polarization- and temperature-insensitive 8x400GHz O-band cascaded AWG for large radix data center and AI/ML networks', Journal of Lightwave Technology. https://doi.org/10.1109/JLT.2026.3660127en
dc.identifier.doi10.1109/JLT.2026.3660127
dc.identifier.eissn1558-2213en
dc.identifier.journaltitleJournal of Lightwave Technologyen
dc.identifier.urihttps://hdl.handle.net/10468/18349
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/HE::HORIZON-IA/101070178/EU/Advance co-packaged optics enabling high-efficiency cloud computing/ADOPTIONen
dc.rights© 2025, the Authors.en
dc.subjectAWGen
dc.subjectDemultiplexingen
dc.subjectIntegrated opticsen
dc.subjectMultiplexingen
dc.subjectPLCen
dc.titlePolarization- and temperature-insensitive 8x400GHz O-band cascaded AWG for large radix data center and AI/ML networksen
dc.typeArticle (peer-reviewed)en
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