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dc.contributor.authorHusko, C.
dc.contributor.authorVo, T. D.
dc.contributor.authorCorcoran, B.
dc.contributor.authorLi, Juntao
dc.contributor.authorKrauss, Thomas Fraser
dc.contributor.authorEggleton, B. J.
dc.date.accessioned2012-06-19T14:01:02Z
dc.date.available2012-06-19T14:01:02Z
dc.date.issued2011-10-10
dc.identifier22771843
dc.identifier34e86049-7802-49a2-8cba-c8702f80e252
dc.identifier000296065700092
dc.identifier80053951070
dc.identifier.citationHusko , C , Vo , T D , Corcoran , B , Li , J , Krauss , T F & Eggleton , B J 2011 , ' Ultracompact all-optical XOR logic gate in a slow-light silicon photonic crystal waveguide ' , Optics Express , vol. 19 , no. 21 , pp. 20681-20690 . https://doi.org/10.1364/OE.19.020681en
dc.identifier.issn1094-4087
dc.identifier.urihttps://hdl.handle.net/10023/2810
dc.description.abstractWe demonstrate an ultracompact, chip-based, all-optical exclusive-OR (XOR) logic gate via slow-light enhanced four-wave mixing (FWM) in a silicon photonic crystal waveguide (PhCWG). We achieve error-free operation (<10(-9)) for 40 Gbit/s differential phase-shift keying (DPSK) signals with a 2.8 dB power penalty. Slowing the light to v(g) = c/32 enables a FWM conversion efficiency, eta, of -30 dB for a 396 mu m device. The nonlinear FWM process is enhanced by 20 dB compared to a relatively fast mode of v(g) = c/5. The XOR operation requires approximate to 41 mW, corresponding to a switching energy of 1 pJ/bit. We compare the slow-light PhCWG device performance with experimentally demonstrated XOR DPSK logic gates in other platforms and discuss scaling the device operation to higher bit-rates. The ultracompact structure suggests the potential for device integration. (C) 2011 Optical Society of America
dc.format.extent10
dc.format.extent2015012
dc.language.isoeng
dc.relation.ispartofOptics Expressen
dc.subjectPhotonic crystal waveguidesen
dc.subjectPhase modulationen
dc.subjectOptical logic devicesen
dc.subjectQC Physicsen
dc.subject.lccQCen
dc.titleUltracompact all-optical XOR logic gate in a slow-light silicon photonic crystal waveguideen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEuropean Commissionen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doi10.1364/OE.19.020681
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/F001622/1en
dc.identifier.grantnumberen


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