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1.
1 Introduction  Duetothefeatureoflargethird ordernonlinearsusceptibility ,lowpowerthresholdandfastresponsetime ,thelowdimensionsemiconductormaterialshavepotentialapplicationsinthefieldofnonlinearopticaldevices,suchasopticalinformationstorageandopticalsw…  相似文献   

2.
1 Introduction  Thenegative groupdelaydispersion(GDD) providedbyapairofprismordoubleprismshasplayedanimportantroleinintracavity[1] orextracavity[2 ] dispersioncompensationforultra shortpulse generationduetoitsadvantages,suchaslowloss,easyalignmentandcompactne…  相似文献   

3.
1 Introduction  SinceC .D .Poole proposedphenomenologicalapproachtoanalyzepolarizationmodedispersion (PMD) [1] ,manymodelsandcalculationsofPMDweredevelopedinRef.[2 ].However,mostofthemfocusedonthe pulsetransmissionofidealpulses,suchasconventionalGaussianpulse ,se…  相似文献   

4.
AnalysesofthePropertiesofTunableFaradayAnomalousDispersionOpticalFilterat589nmAnalysesofthePropertiesofTunableFaradayAnomalou...  相似文献   

5.
1 Introduction  Generationofoptical pulseswithhighrepetitionrateisoneofthekeytechnologiesinthefutureultra highspeedopticalnetworks[1] .Itisalsousefulforgenerationofoptically fedmillimeterwaveinfiber radiotransmission[2~ 4] .Althoughthebandwidthofelectronican…  相似文献   

6.
1 Introduction  ThereisagreatdealofinterestinfiberBragggratingsduetotheirmanyimportantapplicationsinthefieldoftelecommunicationsandfibersensors .BecausefiberBragggratingsexhibitdispersionbothinreflection ,especiallywhenthe gratingischirped[1] ,andintransm…  相似文献   

7.
1 Introduction  High performance opticalswitchingtechnologiesarecurrentlyofenormousinterestforthecommunicationsindustry .Todatemanytechnologieshave producedhigh performancecharacteristics[1,2 ] .Therequirementforthesuccessfultechnologieswillbelowinsertionlo…  相似文献   

8.
1 Introduction  Anongoingchallengeintheopticalcommunicationsistomaximisethedatatransmissioncapacityofasinglefiber.TheintroductionofmultiplechannelsthroughDenseWavelengthDivisionMultiplexing(DWDM )systemshasgreatlyimprovedthiscapacity ,becauseofthesteady…  相似文献   

9.
1IntroductionUsingdispersioncompensatingtechniquestoupgradetheexistingnondispersionshiftedfiber(NDSF)telecommunicationsystemi...  相似文献   

10.
1 Introduction  Theinfraredchargecoupleddevice(IRCCD )sensitivefrom 3to 5μmhasnumerousapplicationsinbothmilitaryandcivilindustries[1] .To getlargearrayIRCCD ,recenttrendsinIRCCDtechnologyaretoreduceboth pixelsizeandtheactivearea .Whereastheformerincreasesarra…  相似文献   

11.
1 Introduction  Thefiberdevicesbasedonfiberfusednullcouplerarerecentlyofgreatinterest.All fiberacousto opticswitch[1] ,tunableopticalfilter[2 ] ,opticaladd dropmultiplexer (OADM ) [3] andfiberpolarizer[4 ] havebeenreported .Foralltheseapplications ,nullcouplerwithlow…  相似文献   

12.
1 Introduction  Thesynthesisofcarbonnitridethinfilmshasbeenthesubjectofintensestudysincethetheoretical predication[1,2 ] andexperimentalrealization[3] of β C3N4thinfilms.Manyattemptshavebeenmadetosynthesizethismaterialby physicalandchemicalmethods ,suchasreact…  相似文献   

13.
1 Introduction  Responsesofbiologicaltissuetolaserirradiationaretypicallyclassifiedasphotochemical,photomechanical,photothermaland photoablativeeffets[1] .Althoughthereare quiteafewimportantapplicationsusinglaser photochemicalandphotomechanicaleffects,them…  相似文献   

14.
1 Introduction  Forveryhighdatarates,intersatelliteopticalcommunications (IOC)holdapotentialperformanceedgeovermicrowave (RF )communicationsintermsofhigherdatarates,smallerantennasandlow probabilityofjammingandintercept[1] .WiththewidedevelopmentofIOCtechnol…  相似文献   

15.
1 Introduction  InWDMopticalfibercommunicationandnetworkapplications,manyopticalcontrollabledevicesaredemanded ,suchaschannelgain/ powerequalizer,channelselector,opticalswitching ,andadd/dropmultiplexer,etc .Inmanycases,wavelengthtunabilityisneeded .Thebulkw…  相似文献   

16.
1 Introduction  Long periodfiber gratings (LPGs )recentlyattractedmuchattentionforuseinopticalsensingapplications[1,2 ] .Theyareusedassensingcomponentstomeasuretemperature ,strainandbendingoffiber .However ,minimizingthecrosstalkbetweendifferentmeasurands,espec…  相似文献   

17.
RecentAdvancesinBiophysical/Biochemical/BiomedicApplicationsofRamanSpectroscopyNaiteng;Yuand;XiaoyuanLi(DepartmentofChemistry...  相似文献   

18.
Duringthepastyearsarevolutionhasemergedtoproduceultrashortandextremelyhigh intensitylaser pulseswiththedevelopmentofthetechniqueofchirpedpulseamplification (CPA ) [1] .Concurrently ,theavailabilityoftheultrashortintense pulsesopensanewregimeofstrongfield mat…  相似文献   

19.
1 Introduction  Extractingusefulinformationaboutthedynamicalscatterersfromthetemporalfluctuationsofscatteringlightfieldhasbeenstudiedformanyyears.Thedevelopmentofdiffusing wavespectroscopy[1~ 3 ] (DWS)hasextendedthetraditionalapplicationsinsingle scatterin…  相似文献   

20.
SolitonPropagationinOpticalFiberswithRandomPolarizationDispersion¥TANGXiongyan;YEPeida(DepartmentofRadioEngineering,BeijingUn...  相似文献   

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