激光器的混沌動力學及其混沌控制與同步研究.pdf

1、廣西師范大學碩士研究生學位論文繁784742激光器的混沌動力學及其混沌控制與同步研究Study011thechaoticdynamicofLaseranditschaoscontrolandchaossynchronization院系：物理與信息工程學院年級：二OO二級專業(yè)：電路與系統(tǒng)研究方向：非線性電路理論及其應用導師：羅曉曙教授研究生：黃良玉完成時間：二00五年四月英文摘要StudyonthechaoticdynamicofLase

2、randitschaoscontrolandchaossynchrOnizatiOnGraduatestudent：HuangLiangYuAdvisor：ProfLuoXiaoShuCollegeofPhysicalandInformationengineeringScience，GuangxiNormalUniversityAbstractInthisthesis，theanalysisofchaoticdynamicsforsev

3、eraltypicallasersisincludedAndthechaoscontrolandchaossynchronizationoflasersarestudiedThemainresearchworkofthisarticlehasfivepartsasfollows：First，thedevelopmenthistoryoflaserandlaserchaostheoryissumupChaoticdynamicscanar

4、iseinseveralwaysinsemiconductorlasers，such∞opticalinjection，externalcavityfeedbackanddirectlymodulationThechaoticdynamiccharacteristicsofsemiconductorlasermodulatedbythethreemodulationwaysaboveandthechaoticdynamiccharact

5、eristicsofsinglemodeC02laserwithmodulatedcavitylossesaredeeperanalyzedbaseonpreviousresearch；MoreoverthechaoticdynanaicsofthelasermodelofLorenzHakenandlossmodulatedNd：YAGlaseraredescribedsimplySecondthepreviousresearches

6、of1aserchaoscontrolandsynchronizationaresmnmarizedThebasicconceptionsofchaoscontrolandchaossynchronizationareintroducedEspeciallythreetypicalcontrolmethodsoflaserchaos，such∞delayfeedback，externallightinjectionandsinglemo

7、decontrolandthreetypicalsynchronizationmethodsoflaserchaos，suchasopticalinjectionfeedback，opticalcouplingandchaossynchronizationthroughreversephasea∞describedThird，weputforwardthemultiplicativeslidingmodevariables咖cturec

8、ontrolschemetocontrolthechaoticmotionofthesemiconductorl鵲erwithextemalopticalfeedbackTheadvantageofthismethodisthatthestableoutputlasercallbeobtainedinashorttimeandtheoutputpowerstrengthofthelasercallbeadjustedflexiblyin

9、accordancewiththeengineeringrequirementTheoryanalysisandsimulationresuItsshowthattheresuItsoftheconUolhavepowerfulstabilityandrobustOurresearchresultshavemanyhelpfulvaluestoimprovethespeedofstableoutput，flexibleadjustmen

10、toflaseroutputpoweraswellasefficiencyofenergytransformationforreallasersystemFourth，weraisetheparametricadaptivecontrolschemetocontrolthechaoticmotionofa1。55urndifecflymodulatedsemiconductorlaserTheadvantageofthismethodi

11、sthatthestableoutput1asercanbeobtainedifonlythecontrollerwasselectedaccordingtothecontr01targetOurresearchresultshavemanyhelpfulvaluestoimprovethespeedofstableoutput，flexibleadjustmentoflaseroutputpoweraswellasefficiency

12、ofenergytransformationforreallasersystemFifth，thechaoticdynamicsofStorage—RingFreeElectronLaserisanalyzedThen，weproposeabidirectionalcoupledsynchronizationschemewiththestiffnessofcouplingvariedperiodicallywiththesafflefr

13、equencyasthatoftheexternalmodulationofsystemThroughthiswaytwoStorage—RingFreeElectronLasercanbemodulatedtosynchronizationinashorttimeWeproofthepossibilityofsynchronizationbymeansofwhethertheensembleaverageofthedifferenti

14、alcoefficientofLyapunovfunctionlessthanzeroBothnumericalsimulationandtheoreticanalysisshowthatsynchronizationoftransmitterandreceiverisfeasiblebythismean8Ourresearchresultshavemanyhelpfulvaluestochaossynchronizationoftwo