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dc.contributor.authorChen, Jian
dc.contributor.authorBamiedakis, N
dc.contributor.authorVasil'ev, P P
dc.contributor.authorEdwards, Tom
dc.contributor.authorBrown, C Tom A
dc.contributor.authorPenty, Richard
dc.contributor.authorWhite, Ian
dc.identifier.citationChen , J , Bamiedakis , N , Vasil'ev , P P , Edwards , T , Brown , C T A , Penty , R & White , I 2015 , ' High-bandwidth and large coupling tolerance graded-index multimode polymer waveguides for on-board high-speed optical interconnects ' , IEEE Journal of Lightwave Technology , vol. In press .
dc.identifier.otherPURE: 236979812
dc.identifier.otherPURE UUID: fc46360b-0725-4661-8892-16d74baf355f
dc.identifier.otherScopus: 84977266316
dc.identifier.otherWOS: 000379751500007
dc.identifier.otherORCID: /0000-0002-4405-6677/work/86537173
dc.descriptionThe authors thank EPSRC via the Complex Photonic Systems II (COPOS II) project for supporting the work.en
dc.description.abstractOptical interconnects have attracted significant research interest for use in short-reach board-level optical communication links in supercomputers and data centres. Multimode polymer waveguides in particular constitute an attractive technology for on-board optical interconnects as they provide high bandwidth, offer relaxed alignment tolerances, and can be cost-effectively integrated onto standard printed circuit boards (PCBs). However, the continuing improvements in bandwidth performance of optical sources make it important to investigate approaches to develop high bandwidth polymer waveguides. In this paper, we present dispersion studies on a graded-index (GI) waveguide in siloxane materials designed to deliver high bandwidth over a range of launch conditions. Bandwidth-length products of >70 GHz×m and ~65 GHz×m are observed using a 50/125 μm multimode fibre (MMF) launch for input offsets of ±10 μm without and with the use of a mode mixer respectively; and enhanced values of >100 GHz×m are found under a 10× microscope objective launch for input offsets of ~18 × 20 μm2. The large range of offsets is within the -1 dB alignment tolerances. A theoretical model is developed using the measured refractive index profile of the waveguide, and general agreement is found with experimental bandwidth measurements. The reported results clearly demonstrate the potential of this technology for use in high-speed board-level optical links, and indicate that data transmission of 100 Gb/s over a multimode polymer waveguide is feasible with appropriate refractive index engineering.
dc.relation.ispartofIEEE Journal of Lightwave Technologyen
dc.rights© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at:
dc.subjectOptical interconnectionsen
dc.subjectPolymer waveguidesen
dc.subjectMultimode waveguidesen
dc.subjectWaveguide dispersionen
dc.subjectQC Physicsen
dc.titleHigh-bandwidth and large coupling tolerance graded-index multimode polymer waveguides for on-board high-speed optical interconnectsen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Commissionen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

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