新型的用于大气激光通信的6偏振键控调制方式-论文.pdf

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1、第34卷光学学报光学前沿信息光学2O14年9月ACTAOPTICASINICA刊NovelModulationSchemeof6-PolSKforAtmosphericLaserCommunicationYuanXueguangZhangYanganZhangJinnanZhangMinglun(StateKeyLaboratoryofInformationPhotonicsandOpticalCommunications，BeijingUniversityofPostsandTelecommunications，Beijing100876，China)AbstractAm

2、odulationschemeof6-PolSKforatmosphericlasercommunicationisproposed．Theoreticalanalysisresultdemonstratesthatthestatesofpolarization(SOPs)anddegreeofpolarization(DOP)oflightwavecanbewellmaintainedafterlongdistancepropagationintheatmosphericchannelwithdifferentturbulencemodels．Simulationresu

3、ltsshowthatthetransmissionperformanceandthebandwidthefficiencyareimprovedconsiderably．6-PolSKmodulationisanattractiveapproachtomeetthecriteriaaboutdatarateandbandwidthefficiencyoftheatmosphericlasercommunicationsystem．Keywordsopticalcommunications；free-spaceopticalcommunication；polarizatio

4、n；modulation；polarizationshift-keyingOCIScodes060．4510；060．2605；260．5430；060．4080新型的用于大气激光通信的6偏振键控调制方式袁学光张阳安张锦南张明伦(北京邮电大学信息光子学与光通信国家重点实验室，北京100876)摘要提出了一种新型的用于大气激光通信的6偏振键控调制方式，理论分析和仿真结果表明，光信号的偏振态和偏振度在不同大气信道模型中经过长距离传输后保持不变，因此在大气激光通信中可以采用偏振键控的调制方式。多级调制方式可以提高系统频谱效率，利用光信号的6种偏振态来传输信息将大大提高系统的带宽效

5、率，6偏振键控调制是适合大气激光通信系统传输速率和带宽效率的一种具有吸引力的调制方式。关键词光通信；自由空间光通信；偏振；调制；偏振键控调制中图分类号TN929．1文献标识码Adoi：10．3788／AOS201434．sl060061Introdutionschemeshavebeenproposed。一．suchascoherentcommunicationsystems，adaptiveopticaltechnology，Overthepastfewyears，atmosphericlasercommunicationtechnologyhasattractedmor

6、eandmoretimeorspatialdiversity，etc．However，thesystemattention．Withpotentialhighbitratecapacity，excellentcomplexityorcostisincreaseddramaticallyinthesesecurity。fast1inkins切llationandparticularlywideschemes．bandwidthonanunregulatedspectrum，atmosphericlaserInthispaper，anove1modulationschemewh

7、ichusesthevectorcharacteristicsofthelightwaveandcodescommunicationhasbeenconsideredasasolutiontothelastdigita1bitsasdifferentstatesofpolarization(SOPs)ismileproblem_l．Inatmospheric1asercommunicationproposed．Theoreticalanalysisandsimulationresultssystems，theopt