Compact, submilliwatt, 2 × 2 silicon thermo-optic switch based on photonic crystal nanobeam cavities-中国期刊网

摘要 Weproposeandexperimentallydemonstratea2×2thermo-optic(TO)crossbarswitchimplementedbydualphotoniccrystalnanobeam(PCN)cavitieswithinasilicon-on-insulator(SOI)platform.Bythermallytuningtherefractiveindexofsilicon,theresonancewavelengthofthePCNcavitiescanbered-shifted.WiththehelpoftheultrasmallmodevolumesofthePCNcavities,only～0.16mWpowerisneededtochangetheswitchingstate.Withaspectralpassbandof0.09nmatthe1583.75nmoperationwavelength,theinsertionloss(IL)andcrosstalk(CT)performancesweremeasuredasIL(bar)=-0.2dB,CT(bar)=-15dB,IL(cross)=-1.5dB,andCT(cross)=-15dB.Furthermore,thethermaltuningefficiencyofthefabricateddeviceisashighas1.23nm/mW.

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Compact, submilliwatt, 2 × 2 silicon thermo-optic switch based on photonic crystal nanobeam cavities

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Compact, submilliwatt, 2 × 2 silicon thermo-optic switch based on photonic crystal nanobeam cavities

来源期刊

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