光纤通信系统中的时钟信号恢复

OpticalFiber&ElectricCable20031No.12003[]2002-05-28[](1974-),,,,.[]2,003299,710071刘爱雄,　高有行(,710071)[],,[];;[]TN929.11[]A[]1006-1908(2003)01-0018-05ClocksignalrecoveryoffibercommunicationsystemLIUAi-xiong,GAOYou-xing(CPI,XidianUniversity,Xi'an710071,Shaanxi,China)Abstract:Clocksignalrecoveryisveryimportantinopticalfibercommunications.Itisthebaseofrealizingef-fectiveandcrediblecommunications.Severalmethodsforrecoveringclocksignalsandthecorrespondingcircuitdia-gramsarepresented.Finallytheapplicationsofthesemethodsareanalyzedbriefly.Keywords:fiberopticcommunication;clocksignal;clocksignalrecovery0,:1);2),,,1,[1]:1),,,2),(PLL),(VCO),1.11[2],(),,(NRZ)2[2]NRZ,,(NLC)NRZ,NRZRZ(),3[2]3,RZ,,,,1LC,Q,,,,34Mb/sLC[3],Q,,Q,(SAW)Q,,34Mb/s,[4],4Q10002NRZ3RZ41.2,[5]55PLL(PCM),,,(NRZ),,,,,Uc(t)Uc(t)VCOUv(t)Uc(t)Uv(t),Uc(t)Uv(t)Ud(t)Ud(t)Ud(t),,,Ug(t)Ug(t),Ug(t),Uc(t)Uv(t),Uc(t)Uv(t),,,,VCOLCXR-T5683A[5]1.544Mb/s2.048Mb/s6.312Mb/s8.448Mb/s,66RX-DATA+RXDATA-XR-T5683A,LCLC,RCLK,RPOSRNEG(),LC,11LCv/Mbs-1L/HC/pF1.544(T1)482002.048(E2)481006.312(T2)51008.448(E2)5601.3VCXO(AD805)[6]AD805(VCXO),VCXO,VCXO,VCXO19:,VCXO,PLLAD8057,SONET/SDH/ATM(//)1.4,RZ(1ps),OTDM(),[7],(s),(c),((TWSLA)),,7VCXO(AD805)OTDMPLL[8](8),,TWLDA()FWM(),100Gb/sOTDMf0n(f0+nf)APD()nf,VCOnf,f0/nTDMf0/n[9](9)TWSLA,XGS()AM(),,XPM()FM(),,CWDFB()TWSLA,,,OTDM1.5[5](10)T7035,,50.5MHz237MHz,,8PLLEDFR,EDFA,PLC,PC20200319EDFA,WDM,PC434235.57954MHz32(O),33(L2),34(L1),35(L0)36(N),10251.84Mb/s(SONET),OL2L1L0N=11011;155.52Mb/s(SDH),OL2L1L0N=00101102OL2L1L0Nf/MHz1101150.555110105558110015861110006165101116569101106974101017478101007886100118694100109410210001102110010101101190100011912900111129138001101381470010114715700100157172000111721880001018820400001204220000002202372,,,20Gb/sGb/s,,PLL,,,,,2.5Gb/s10Gb/sCMOS,,[][1].[J].,1994,(1-2):68-70.[2],.[M].:,2000.122-123.[3].[J].,1989,(4):14-21.[4],.10Gb/sSDH[J].,1999,(2):28-30.[5].[J].,1999,(6):34-35.[6].SONET,ATM,NRZ[J].FiberOp-ticProductNews,1994,9(6):45-47.[7],,.[J].,1998,9(1):78-81.[8]KAMATANIO,KAWANISHIS.Ultrahigh-speedclockrecoverywithphaselockloopbasedonfour-wavemixinginatraveling-wavelaserdiodeamplifier21:[J].JLightwaveTech,1996,14(8):1757-1767.[9]PATRICKDM,MANNINGRJ.20Gbit/sall-opticalclockrecoveryusingsemiconductornonlinearity[J].ElectronLett,1994,30(2):151-152.(17)34PZTd31310-10m/V,2.1kHz20V,1.2PZTPZT,PZT,PZTM-ZOPD,[4],,3M-Z2.1kHzFFT()2.110-2(5kHz),1pm[6],M-ZOPD,[][1],,,.[J].,1999,A26(6):515-518.[2]TURANE.Fibergratingspectra[J].JLightwaveTechnology,1997,15(8):1277-1294.[3]CANNINGJ,SCEATSMG.-phased-shiftedperi-odicstructuresinopticalfibersbyUVpost-processing[J].ElectronicsLetters,1994,30(16):1344-1345.[4]DUPRAYV,ZELLERM,ZHANGW,etal.NovelUVpost-processedfibreBragggratingsensorfortem-peratureandstrainmeasurements[A].OFS[C].2000.9-12.[5]KERSEYAD,BERKOFFTA,MOREYWW.High-resolutionfiber-gratingbasedstrainsensorwithinterferometricwavelength-shiftdetection[J].Elec-tronicsLetters,1992,28(3):236-238.[6]LEBLANCM,VOHRAST,TSAITE,etal.Transverseloadsensingbyuseofpi-shiftedfiberBragggratings[J].OptLett,1999,15(16):1091-1093.2220031