Temperature Dependence of Characteristics for Multimode Interference Based 3

摘要 Thetemperaturedependenceofcharacteristicsformultimodeinterference(MMI)based3-dBcouplerinsilicon-on-insulatorisanalyzed,whichoriginatesfromtherelativelyhighthermo-opticcoefficientofsilicon.Forrestrictedinterference3-dBMMIcoupler,theoutputpoweruniformityisideally0atroomtemperatureandbecomes0.32dBwhentemperaturerisesupto550K.Forsymmetricinterference3-dBMMIcoupler,thepoweruniformitykeepsideally0duetoitsintrinsicsymmetricinterferencemechanism.Withthetemperaturerising,theexcesslossofthebothdevicesincreases.TheperformancedeteriorationduetotemperaturevarietyismoreobvioustorestrictedinterferenceMMI3-dBcoupler,comparingwiththatofsymmetricinterferenceMMI3-dBcoupler.

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Temperature Dependence of Characteristics for Multimode Interference Based 3—dB Coupler in SOI

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Temperature Dependence of Characteristics for Multimode Interference Based 3—dB Coupler in SOI

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