1、2Content(1)OSA簡介(2)相關元器件介紹(3)OSA製程注意事項(4)OSA的分类3(1)OSA簡介 OSA 的位置nTransceiver的組成 1.OSA 2.IC 3.PCB 4.殼件nTransceiver的成本OSA佔TRx的成本普遍 70%4縮略語TOSA:Transmitting Optical Sub-Assembly,光发射组件ROSA:Receiving Optical Sub-Assembly,光接收组件BOSA:Bi-Directional Optical Sub-Assembly,光发射接收组件LD:Laser Diode,激光二极管PD:Photo-Di
2、ode,光电二极管FP:Fabry-Perot,法布里-珀罗激光二极管DFB:Distributed Feedback Laser,分布反馈式激光二极管VCSEL:Vertical Cavity Surface Emitting Laser,垂直腔面发射激光器PIN:Positive Intrinsic Negative,同质PN结光电二极管APD:Avalanche Photo-Diode,雪崩光电二极管TIA:Transimpedance Amplifier,跨阻放大器TO-can:A kind of package method for active componentOLT:Optic
3、al Line Termination光线路终端ONU:Optical Network Unit光网络单元SDH:Synchronous Digital Hierarchy,同步数字体系SONET:Synchronous Optical Network,光同步网络GBE:Gigabit Ethernet,千兆以太网5ITU&IEEEIEEE(Institute of Electrical and Electronic,電氣及電子工程師學會)IEEE 802(IEEE 802 series of standards for Local Area Networks,電氣及電子工程師學會802系列標
4、準)GE-PON Gigabit Ethernet,1.25GbpsITU(International Telecommunications Union,國際電信聯盟)ITU-T(ITU Telecommunications Standard Sector,國際電信聯盟電信標準化部門)A-PON ATM,155Mbps B-PON Broadband,622Mbps G-PON Gigabit,1.25Gbps6SONET/SDH Transmission Rate7PON ConceptPON（Passive Optical Network无源光网络）技术是一种点对多点点对多点的光纤传输和接
5、入技术;下行采用广播方式、上行采用时分多址方式，可以灵活地组成树型、星型、总线型等拓扑结构;在光分支点不需要节点设备，只需要安装一个简单的无源光分路器，光信号在传输过程中不再经过放大和再生，网络的分路由光分路器来实现。81550 DFBVoice+Data(continuous)ONUUp stream(burst)Video(analog)Dual-bandFWDMTri-bandFWDM1x8Splitter1x4SplitterTri-bandFWDMUp stream(burst)Video(analog)Voice+Data(continuous)1490 DFB1310 FPPON
6、 系統示意圖OLT91550 DFBVoice+Data(continuous)ONUUp stream(burst)Video(analog)Tri-bandFWDM1x8Splitter1x4SplitterTri-bandFWDMUp stream(burst)Video(analog)Voice+Data(continuous)1490 DFB1310 FP101550 DFBVoice+Data(continuous)ONTUp stream(burst)Video(analog)Dual-bandFWDMTri-bandFWDM1x8Splitter1x4SplitterUp st
7、ream(burst)Video(analog)Voice+Data(continuous)1490 DFB1310 FP11PON 系統元件MELCO B-PON Product12PON Application13Media Converter 系統架構(P2P)100Mbps141550nm1310nm45 filter45 filterTxRxTxRxReceptacle BOSAPigtail BOSAMedia Converter 系統示意圖15光路示意图LDPDFilterFiberConnector1490nm PIN-TIA1310nmLaser Diode1550nm Ph
8、otodiode12356(1490nm)(1550nm)(1310nm)416BOSA基本结构LD To-CanEngine BasePigtail HolderFilterPD To-CanFilter HolderPigtail17(2)相關元器件介紹18器件分類Active ComponentPassive ComponentMetal&Plastic Housing19Active Component主動元件主動元件(coaxial type)上游中游下游chip chipTO-canTOSA/ROSA LD moduleTransceiver End user,Sub-system
9、,System(Butterfly,Pigtail,Receptacle)主動元件主動元件(rectangular type)(Packaging)20LD TO-canCap(Aspherical/ball Lens)Header(Stem)ChipMonitor PDSubmount21TOSA基本结构SiOBLens cap with 8O facetHeaderZ-BushingReceptacleIsolatorLensWindow-capPD ChipLD ChipFiber StubSplit SleevePD SubmountPD ChipLD ChipLD SubmountH
10、eader+SiOB+LD Chip+PD Chip+Cap=To-CanTo-Can+Isolator+Z-Bushing+Receptacle=TOSATo-Can22TOSA/ROSA常见问题介绍(To-Can)镀金层划伤、缺镀金层划伤、缺损或粘有焊锡等损或粘有焊锡等管脚粘有焊锡或管脚粘有焊锡或镀金层缺损镀金层缺损镀金层氧化镀金层氧化To-Can封盖开缝封盖开缝To-Can封盖焊带封盖焊带缺陷缺陷To-Can Cap玻璃玻璃开裂开裂BATo-Can玻璃封装玻璃封装碎裂或脱落碎裂或脱落To-Can玻璃封装玻璃封装碎裂或脱落碎裂或脱落23Caps characteristic24TO-56F
11、TO-56B25TO-56CTO-56A26Offset design of TO-can27Coupling Characteristics of Offset28PINPDPD-PD+VpdGND应用：Triplexer，PD module29PIN-TIA（4pin）DataDataVccGNDPD1nFIN1nFFilter应用：GE ONU BOSA，ROSA30PIN-TIA（5pin）DataDataVccGNDPDVpd12543应用：GE PON BOSA，ROSA31APD-TIA DataDataVccGNDAPDVapd12543应用：GE PON OLT，GPON O
12、NU，Triplexer，ROSA32PIN Chip PIN:Positive-Intrinsic-Negative33Real case for PINs specification34APD ChipAPD:Avalanche PhotoDiode35Real case for APDs specification36Real case for APD in PON applicationResult:X direction 50umY direction 55umZ direction 800um37Passive ComponentFiberFilterLensIsolatorRec
13、eptacle38Fiber39Connect typeSC connectLC connectFC/PC connectMU/MUJ connectST connect40Connect typeFC/PCSC/PCFC/APCSC/APC41Fiber Inspection外觀 42Fiber Inspectionn外觀43End較輕微的情況 較為嚴重的情況 44End光芯(core)與覆層(cladding)端面破損次嚴重的情況 45FilterTR0 Edge filter46RTR0 cut-off filer47Isolator48Isolator Inspection495051
14、Metal&Plastic HousingEngine BaseFilter HolderLD Lens HolderPigtail Holder52(3)OSA製程注意事項 AssemblyLaser WeldingPD AlignmentTesting53BOSA关键工艺简介Filter Assembly滤波片装配滤波片装配LD AssemblyLD To-Can装配装配PD AlignPD耦合耦合Laser Welding激光点焊激光点焊54Assembly Filter有正反之分 Filter有入射角的限制 Lens需注意L1的距離 LD TO Pin根部的保護 膠的保存條件及固化顏色
15、55Laser Welding焊点的外观：颜色，位置，大小焊点的剪切力Post Weld shift(20%)56XY laswer weldingZ laswer welding57Defective Laser welding58Defective Laser welding激光焊点开裂激光焊点开裂激光焊点位激光焊点位置过低置过低激光焊点位激光焊点位置过高置过高激光焊点开缝激光焊点开缝激光焊点离激光焊点离Z-Bushing太近太近穿透焊点过浅穿透焊点过浅穿透焊点过深穿透焊点过深焊点变色焊点变色59PD Alignment 輸入光源是否飽和 不帶電帶光插拔TO PD反偏先開再開Vcc TO腳
16、位的正確60TestingOutput PowerTE at low and high temp.Spectrum(WL,width and SMSR)SensitivityOver Load61产品测试项目应用测试项FPPo,Slope,Im,Vf,TE,WL,WidthDFBPo,Slope,Im,Vf,TE,WL,Width,SMSR62If(mA)P(mW)Ith逻辑逻辑1逻辑逻辑0输入电脉冲输入电脉冲IbImIo=Ib+ImPo=(Ib+Im-Ith)/2Po数字调制数字调制If(mA)P(mW)Ith输入电信号输入电信号Io=Ib+ImPo=(Ib-Ith)Po模拟调制模拟调制Ib
17、Im输出光脉冲输出光脉冲输出光脉冲输出光脉冲63产品测试项目应用测试项其它可选PINRes，IdCNR，Two-TonePIN-TIASenOLPIN-TIA(5pin)SenOL,Res,IdAPD-TIAVbr，Id，Iop，Io，Gain，SenOL64(4)OSA产品分类TOSAROSABOSA65TOSA分类分类TOSA分类分类应用应用工作速率工作速率工作波长工作波长芯片类型芯片类型光接口形光接口形式式OptionSDH/SONET155M 850nmVCSELLC/SCFiber StubIsolator622M 1.244G 1310nmFP/DFB2.488G1550nmGBE
18、1.0625G850nmVCSEL1310nmFP/DFB1550nmFC1.0625/2.125G850nmVCSEL1310nmFP/DFB1550nmCWDM155M2.67G12701610nmDFB66ROSA产品分类ROSA分类应用工作速率工作波长芯片类型光接口形式管脚定义类型SDH/SONET155M622M1.244G2.488G850nmGaAs For 850nm InGaAs For 1310/1550PIN-TIAFor Short DistanceAPD-TIAFor Long Distance LC/SC4pin For PIN-TIA5pins For APD-T
19、IA1310nm1550nmGBE1.0625G850nm1310nm1550nmFC1.0625/2.125G850nm1310nm1550nmCWDM155M2.67G12701610nmDWDM155M2.67G1563.05 1528.77nm10G (SDH,Ethernet,FC shared)9.95310.709G850nm1310nm1550nm67BOSA产品分类BOSA分类应用工作速率工作波长芯片类型光接口形式管脚定义类型GEPON ONU1.25G1490nmInGaAs For 1310/1550PIN-TIAFor ONUAPD-TIAFor OLT Pigtail/Receptacle,SC/LC4pin For PIN-TIA5pins For APD-TIAGEPON OLT1.25G1310nmGPON ONU2.5G1490nmGPON OLT1.25G1310nmGPON Triplexer2.5G1490nm2G1550nmP2P BOSA155M622M1.25G1310nm1550nm68Thank you!Question?结结 语语
