40Gbs-光纤通信系统设计及其仿真

华中科技大学硕士学位论文高速光纤通信系统传输特性研究姓名：徐晓庚申请学位级别：硕士专业：物理电子学指导教师：张新亮20060116I40Gb/s40Gb/sFEC86340Gb/s140Gb/s2-MZMEAMMZMNRZRZCS-RZDPSKMatlab3Optisystem440Gb/sCS-RZNRZIIAbstractWiththeinformationexplosion,therequirementofspeedandbandwidtharemoreseriousandurgent.Uptonow,thelargecapacityandlong-haulopticalfibercommunicationtechnologieshavebeenrapidlydeveloped.The40Gb/shighspeedopticalfibercommunicationtransmissionsystemisbecomingoneofhottesttopicrecently.Thefollowtechnologiesarethekeyissuefor40Gb/shighspeedopticalfibercommunicationtransmissionsystem:Lownoisesandwidebandwidthopticalamplifier;HighspeedFECtechnology;EfficientMUX/DEMUXtechnology;Thesignalmodulationformatswithhigheropticalnoises,nonlineareffecttoleranceandhigherspectralefficiency.Sponsoredbynational863projectsandWuhantechnologyinnovationproject,the40Gb/shigh-speedopticalfibercommunicationtransmissionsystemiscomprehensiveinvestigatedinthisthesis.Themainachievementsandconclusionsarelistedasfollows:(1)Researcheson40Gb/shigh-speedopticalfibercommunicationtransmissionsystemanditslastdevelopmentsarereviewed;themeaningofchoosingopticalsignalmodulationformatsisdiscussed.(2)IntroducingtheMach-Zendermodulator(MZM)andelectronic-absorbmodulator(EAM)’sgoodsandflaws.BasedthetheoreticalanalysismodelsofMZM,thetheoreticalexpressofNRZ,RZ,CS-RZandtheDPSKmodulationformatsaregiven.Thespectrumsofthesemodulationformatsareanalyzed.NumericalsimulationsofthesemodulationsignalsaredonewiththeMatlabsoftware,andgetthespectrumsviaFourierismtransformmethod.Thenumericalsimulationresultsareaccordwiththeoreticalanalysis.(3)ThestimulatedtransmittermodelsoftheseopticalsignalmodulationsformatsareestablishedviaOptisystemsoftware.Theirwaveforms,eyediagrams,andspectrumsarestimulated;theresultsareaccordwiththeothers.Whenthedispersioncompensatefiberlocationsisfixedinthemiddle,differentSMFdistanceratiosstimulationsexperimentsaredone.Theresultshowsthatthesymmetrydispersionmanagementmaphasthebesttransimisionperformance.Theexperimentsstimulationsofbacktoback,dispersiontoleranceanddifferentdispersionmanagementwithdifferentmodulationsaredone,andthelongestdistanceofdifferentdispersionmanagementsarecompared.III(4)Theexperimentsofbacktoback,long-haultransmission,dispersiontoleranceanddifferentdistanceratiowithdifferentmodulationsignalsarecarriedout.ItisshowsthattheCS-RZmodulationhasthebesttransmissionperformances;NRZmodulationhasthebiggestdispersiontolerance.Keywords:high-speedopticalfibercommunicationsystemmodulationformatspectrumanalysisdispersionmanagement111.12090[1-3]1043040[2]10Gb/s2010Gb/s10Gb/s(1966-1976)10Km(1976-1986)21310nm140-565Mb/s50-100km(1986-1996)1550mn2.5-10Gb/s100-150kmEDFA[3](1996-)DWDM[47]ETDM[4]DWDM[67]1.240Gb/sFEC40Gb/s1.2.140Gb/sF-PDFBDBR[89]F-PF-PDFBDBRDFBDFBDBRQWQW:MQWGRIN-SCH-SQW3SLB-GRIN-SCH-SQWDFB1.2.21.12.5Gb/sG.652120km600km,l0Gb/s1.1(a);(b)[1012]:(Mach-Zehnder)(EA)M-ZLiNb03DFBLiNbO3M-Z[10][11]EAM-Z[12]1.2.3[13-15][1415]NRZ40Gb/s(a)(b)4DWDMNRZ40Gb/s40Gb/s[16-27]RZ[16](CS-RZ)[17](NRZ-DPSK)[18](RZ-DPSK)[1920]CS-RZ-DPSK[2123]DQPSK[24]IM-DPSK[25]PrefilteredCS-RZ[26]NRZ-DPSKRZ-DPSKCS-RZ-DPSK01IM-DPSKDQPSKPrefilteredCS-RZCS-RZ1.2.440Gb/sDWDM[2728]DWDMEDFAEDFALDFAPDFADRASOAGC-SOALOADWDMDWDMEDFA1550nm40nm0.8nm50DWDM[29]EDFAEDFAEDFAEDFA51.2EDFACLEDFAEDFAEDFA/STDFATDFATDFA/1300nmPDFA1.3EDFADRA1.3DRA:(1)(2)DRADWDM1.41.4E-BandS-BandC-BandL-BandU-Band144014601480150015201560154015801600162016401660nm144014601480150015201540156015801600162016401660nmTDFA37nmTDFA36nmRaman+TDFA63nmRaman18nmRaman132nmRaman100nmRaman40nmRaman+EDFA83nmEDFA47nmEDFA52nm61.2.5G.6516.652G.653G.654G.655G.656[3032]G.651G.6521310nm1550nm90%[31]G.6531550nmDWDM[32]G.654G.655NZ-DSF1550nm1525nm1585nm1550nm[33]l0Gb/sG.65640Gb/sDWDMPMD1.1G.652G.655G.655DWDM15200312000ITU-TG.655ABITU-TG.655ABC[3132]G.655A200GHzDWDM10Gb/s400kmC10Gb/sDWDMG.655B100GHzDWDMCL10Gb/s3000kmG.655C1385nm13601530nm100GHzDWDMCL1.1G.652G.655SMF(G.652)TW-RS(G.655)E-LEAF(G.655)Teralight(G.655)µm280507060ps/km/nm174.54.27.7ps/km/nm0.0580.0450.090.058dB/km0.230.230.230.23ps/km1/20.10.10.10.1m2/w2.310-202.310-202.310-202.310-20G.655N×10Gb/sDWDM7G.65520046ITU-TG.656G.65614601625nmG.656G.656100GHz40Gb/s400km1.2G.655G.6561.2ITU-TG.655G.656G.655AG.655BG.655CG.656µm8-118-118-117-11µm125125125125Dmin(ps/nm.km)0.11.01.02Dmax(ps/nm.km)6.010.010.014PMDps/km1/21460dB/km0.41550dB/km0.350.350.350.351625dB/km0.40.40.4PMDPMDQ(ps/km1/2)0.50.50.20.21.2.6FECFEC[3435]FECFECFECFECFECSDHFECFECFEC40Gb/sFEC5dBRSFEC9dB40Gb/sG.709OTU340Gb/sSDH43.018413Gb/sSTM-256G.709OTU3OTU3FECFEC40Gb/sSDH81.2.740Gb/s[35-39]GVD40Gb/sDWDM10Gb/sWDM[35]1234[36]40Gb/s40Gb/sDWDM[3738]OPC[39]1.340Gb/sWDM40Gb/s[27-30][4041]FEC,NRZRZCS-RZ100×10Gb/s9800KmNRZCS-RZ120×43Gb/s1800km38×40Gb/s6200KmRZ25GHz10Gb/s8000KmCS-RZ32×42.7Gb/s70GHz96100Km50GHz4300Km16×40Gb/s720Km40Gb/s×25610.24Tb/sNEC40Gb/s×27410.96Tbit/sDWDM(1)ETDM10155Mb/s622Mb/s2.5Gb/sl0Gb/s40Gb/s160Gb/sETDMOTDM(2)100GHz50GHz25GHz12.5GHz(3)DWDMCLSUECLS(4)1.6Tb/s160l0Gb/sNECAlcatel100km27340Gb/s25643Gb/s40Gb/s27350GHzC,LSGeSi42.7Gb/sFEC7%25675GHz50GHz1.