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1、thProceedings,4ChaoticModelingandSimulationInternationalConference31May–3June2011,AgiosNikolaos,CreteGreece*Applicationsofchaoticlasercorrelationrangingtechnology†YuncaiWang,AnbangWang,BingjieWang,MingjiangZhangInstituteofOptoelectronicEngineering,DepartmentofPhysics&Optoelectr
2、onics,TaiyuanUniversityofTechnology,Taiyuan030024,China†Correspondingauthor,e-mail:wangyc@tyut.edu.cnAbstract:Wedemonstratetheapplicationsofthechaoticlasercorrelationrangingtechnologyinfreespaceandtransmissionlines.Infreespace,achaoticlidarsystemusingchaoticlaserasprobelightsou
3、rceisdesignedandpresented.Weexpandtheapplicationoftherangingtechnologytothefiberfaultlocation,andachaoscorrelationopticaltimedomainreflectometerisproposedanddemonstrated.Also,thechaoticlasercanbeconvertedtotheelectricchaoticwidebandsignalwhichisusedtolocatethecablefault.Keyword
4、s:chaoticlaser,chaoticlidar,opticaltimedomainreflectometer,wirefaultlocation,laserdiode1.IntroductionResearchershavefoundthatalaserdiodecangeneratecontinuouschaoticoscillationswithrandomtime-domainwaveform,whichhasaδ-function-likecorrelationtrace[1].Basedonthewidebandandgoodcor
5、relationpropertiesofthechaoticlaser,acorrelationrangingtechnologywasproposed[2,3].Inthistechnology,thetargetdetectionisrealizedbycorrelatingthereferencechaoticsignalwiththedelayedprobesignal.Benefitingfromthebandwidthofthechaoticlaserlargerthan10GHz[4]，thistechnologycanensureth
6、egreatrangeresolutionandunambiguity.Furthermore,itishighlyresistanttothemutualinterferencefromthesamesystemsincethelasersourceproduceauniquechaoticlasersignal.Onthebasisofthestudyofthecorrelationrangingwithchaoticlaserinfreespace,weexpandedtheapplicationofthetechnologytotransmi
7、ssionlinefaultlocation,andachaoticopticaltimedomainreflectometerisproposed[5].Inthispaper,wereportexperimentalresultsofthechaoticsignalcorrelationrangingtechnologyinfreespace,fiberandwire.2.ChaoticlidarAchaoticlidarsystemisshowninFig.1(a).Thechaoticlaserisgeneratedbyan808-nm,50
8、0-mWlaserdiodewithopticalfeedbackfromamirror.Thechaoti
