iog小型化可热插拔光收发模块的设计

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1、武汉理工大学硕士学位论文IOG小型化可热插拔光收发模块的设计姓名：石章如申请学位级别：硕士专业：通信与信息系统指导教师：陈伟20051101AbstractThespreadofbroadbandaccessservicesrequiresthedevelopmentofhi曲一speedlow·costopticalcommunicationsystemsforlocalareanetworks(LANS)，wideareanetworks(WANs)，andstorageareanetworks(SANs)．Insuchbackground，10Gbp

2、sdatalinkinterfaces，suchasthe10-GigabitEthernet，SONETOC一192／SDHSTM一64，andFiberChannel，haverecentlybeenstandardized．TheMulti—SourceAgreements(MSAs)haveledtothedevelopmentofonetransceiverafteranother，includingthe300一pinMSAtransponder，XENPAK,XPAK,X2，andXFP，Atpresent，XFPisconsideredas

3、themostprospecttechnologyinthe10Gmodules．XFPislow、costandtheapplicationfieldofXFPiswidelyforitsindependencewiththeprotoc01．Itmakesthehigllportdensityapplicationcometruewiththecharacteristicofsmallformfactorpluggable．Afterintroducingthestructure、principleandthefunctionsofeachpartof

4、XFPinthepaper,theau[；hol"choseEMschemebycomparingthewaysofmodulation．Inthepartofkeycircuit，theauthoranalysesthehigh—speedinterface，includingPECL、LVDSandCML，andthenmannersofdrivingandcouplingarecomparedinthepartoflaserinterface．Accordingtothecharactersofchipschosen，theauthoradopted

5、themethodofsingle-endedtodrivealaserDiodewithanAC—couplingcapacitor．TheAPCandextinctionratiocontrolcircuitarealsointroducedlater．Atlast，theauthoranalysedtheprincipleofBias-Tusedforsupplyingbiascurrentorvoltageandthesimulationdesign．Theanalysisofsignalintegrityrunsthroughtotheentir

6、eprocessofPCBdesign．Theauthortriedhisbesttorestrainthefactorsaffectingthequalityofsignalintheprocessofthechoseofsubstrate、stack-upandimpedancedesign．Simulationplaysanimportantroleinthedesign，whichoptimizesthecircuitdesignoflaserinterfaceandconfirmsthelocationandvalueofdecouplecapa

7、citors．AfterthedesignofXFPcompleted，theresultsoftestindicatethattheperformanceofXFPachievesallrequests．Andsomeparameterssuchasextinctionratio、opticalpower，exceedthatofoverseassameproducts．Thesealsopromisethatsimulationdesignwillplayamoreandmoreimportantroleinhigh-speeddesign．Keywo

8、rds：XFP，MSA，Bias—T，impendence，Spa