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基于硅基光学相控阵的大范围二维光束扫描(英文) Title:Silicon-BasedOpticalPhasedArrayforWide-AngleTwo-DimensionalBeamScanning Introduction: Withtheincreasingdemandforadvancedimagingandcommunicationsystems,thereisagrowingneedforrobustandefficientbeamscanningtechnologies.Opticalphasedarrays(OPAs)haveemergedasapromisingsolution,offeringthecapabilitytosteerandshapethedirectionofopticalbeamswithouttheneedformechanicalmovements.Silicon-basedOPAshavegainedsignificantattentionduetotheirdesirablepropertiessuchashighintegrationdensity,lowpowerconsumption,andcompatibilitywithstandardsemiconductorfabricationprocesses.Inthispaper,weexploretheconceptofasilicon-basedOPAforwide-angletwo-dimensionalbeamscanning. 1.FundamentalsofOpticalPhasedArray: 1.1IntroductiontoOpticalPhasedArray 1.2WorkingPrincipleofOpticalPhasedArray 1.3AdvantagesandApplicationsofOpticalPhasedArray 2.Silicon-BasedOptics: 2.1SiliconPhotonics:AnOverview 2.2FabricationandManufacturingTechniquesforSiliconPhotonics 2.3AdvantagesofSilicon-BasedOpticsforPhasedArraySystems 3.DesignConsiderationsforSilicon-basedOPA: 3.1BeamSteeringRangeandResolution 3.2ElementIntegrationandPitchConsiderations 3.3OpticalWaveguideDesignforEfficientPhaseControl 3.4ThermalManagementforHigh-PowerOperation 4.ArrayCalibrationTechniques: 4.1CalibrationofIndividualPhaseShifters 4.2CompensationforManufacturingVariations 4.3FeedbackControlMechanismsforPhaseandAmplitudeAdjustments 5.Wide-AngleTwo-DimensionalBeamScanning: 5.1ChallengesinAchievingWide-AngleBeamScanning 5.2StrategiesforWide-AngleSteeringRange 5.3BeamFocusingTechniquesforEnhancedScanningPerformance 6.ExperimentalValidation: 6.1DesignandFabricationofSilicon-BasedOpticalPhasedArray 6.2CharacterizationofBeamScanningPerformance 6.3ComparisonwithExistingTechnologies 7.FutureDirectionsandPotentialApplications: 7.1IntegrationwithOpticalCommunicationSystems 7.2AdaptiveBeamformingforHigh-ResolutionImaging 7.3CompactLiDARSystemsforAutonomousVehicles 8.Conclusion: Inthispaper,wepresentedacomprehensivestudyonthedesign,fa