宽带声光可调谐滤波器的设计及应用

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1、天津大学硕士学位论文宽带声光可调谐滤波器的设计及应用姓名：杨兆祥申请学位级别：硕士专业：光学指导教师：刘迎20090501ABSTRACTIAOTFhasmanymeritssuchasverywidetunablerange，narrowlinewidth，quicktuningspeed，lowinsertloss，lowdrivepoweranduniquepropertiesofsimuiraneousmulti．wavelengthfiltering，SOithasenormouspotentialinfuturewavelength．division．m

2、ultiplexing(WDM)system．Forexample，itcanbeusedasamulti．channeltransformation，distribution，diversity,routingandtheusersendingandreceivingmulti．channel．Inaddition，theAOTFisalsocommonlyusedinsemiconductorlasersasrapidtunablefilter,aswellasintherapidscanningspectrometer,radiometer,multi．spe

3、ctralimaging，lightdetection，Ramanscatteringmeasurement，andSOon．Thepaperiscomposedofthreemainpartsasfollows：1．Thestudyoftheoutputcharacteristicsofthequasi-collinearAOTF，Accordingtothetheoryofcouplingmodewegetthetransferfunctionandtheoutputcharacteristicsofthequasi．collinearAOTF,thenitso

4、utputcharacteristicsarediscussedtheoreticallyandexperimentally．2．Thestudyoftheoutputcharacteristicsofacousto-opticaltunableerbium·dopedfiberringlaser：first,aerbium．dopedfiberringlaser，whichutilizesasingle。stagepoladzation．independentacousto．optictunablefilterbyuseofquasi-collinearcoupl

5、ingasthetuningcomponent，isproposed．Thenthecompensationoffrequency．shiftandoutputcharacteristicsaretheoreticallyanalyzed．AndthentheexDerimenthasbeenrealizedinacousto-opticaltunableerbium—dopedringlasersystem，finally,thedifferencesbetweentheoryandexperimentarediscussed．3．Researchonbroadb

6、andAOTFspectrometer：firstofall，inordertowidenthespectrummeasurementrangeofthespectrometer,weinvestigatethebroadbandinterdigitaltransducerandproposeanewstructureofAOTF(doublebroadbandinterdigitaltransducers)tofurtherextendtherangeofthespectrometer．Secondly,wecarryondetailedanalysistovar

7、iouskindsofcharacteristicsofthespectrometer．FinallV．weusethemethodofFoureiSelf-Deconvolutiontoimprovethecapabilityofthespectrometer．KEYWORDS：IntegratedOpticsErbium—dopedFiberLaserNear-infraredSpectrometerAOTFBroadbandInterdigitalTransducers独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作和取得的研究成果，除了