OSA產品及零件簡介及應用1

1、OSA產品及零件簡介及應用1Content (1) OSA簡介 (2) 相關元器件介紹 (3) OSA制程注意事項 (4) OSA的分類2(1) OSA簡介 OSA 的位置Transceiver的組成 1. OSA 2. IC 3. PCB 4. 殼件Transceiver的成本OSA占TRx的成本普遍 70%3縮略語TOSA: Transmitting Optical Sub-Assembly, 光發(fā)射組件ROSA: Receiving Optical Sub-Assembly, 光接收組件BOSA: Bi-Directional Optical Sub-Assembly, 光發(fā)射接收組件L

2、D: Laser Diode, 激光二極管PD: Photo-Diode, 光電二極管FP: Fabry-Perot, 法布里-珀羅激光二極管DFB: Distributed Feedback Laser, 分布反饋式激光二極管VCSEL: Vertical Cavity Surface Emitting Laser, 垂直腔面發(fā)射激光器PIN: Positive Intrinsic Negative, 同質PN結光電二極管APD: Avalanche Photo-Diode, 雪崩光電二極管TIA: Transimpedance Amplifier, 跨阻放大器TO-can: A kind

3、of package method for active componentOLT: Optical Line Termination光線路終端ONU: Optical Network Unit光網(wǎng)絡單元SDH: Synchronous Digital Hierarchy, 同步數(shù)字體系SONET: Synchronous Optical Network, 光同步網(wǎng)絡GBE: Gigabit Ethernet, 千兆以太網(wǎng)4ITU & IEEEIEEE(Institute of Electrical and Electronic, 電氣及電子工程師學會)IEEE 802(IEEE 802 se

4、ries of standards for Local Area Networks, 電氣及電子工程師學會802系列標準) GE-PON Gigabit Ethernet, ITU (International Telecommunications Union,國際電信聯(lián)盟)ITU-T (ITU Telecommunications Standard Sector,國際電信聯(lián)盟電信標準化部門) A-PON ATM, 155Mbps B-PON Broadband, 622Mbps G-PON 5SONET/SDH Transmission Rate6PON ConceptPON（Passive

5、 Optical Network無源光網(wǎng)絡）技術是一種點對多點的光纖傳輸和接入技術;下行采用廣播方式、上行采用時分多址方式，可以靈活地組成樹型、星型、總線型等拓撲結構;在光分支點不需要節(jié)點設備，只需要安裝一個簡單的無源光分路器，光信號在傳輸過程中不再經(jīng)過放大和再生，網(wǎng)絡的分路由光分路器來實現(xiàn)。 7PON 系統(tǒng)示意圖1550 DFBVoice+Data(continuous)ONUUp stream(burst)Video(analog)PDmoduleDFB LDmoduleAPD moduleDFB LDmodulePIN-TIALDDual-bandFWDMTri-bandFWDM1x8S

6、plitter1x4SplitterTri-bandFWDMBOSAUp stream(burst)Video(analog)Voice+Data(continuous)1490 DFB1310 FPOLT81550 DFBVoice+Data(continuous)ONUUp stream(burst)Video(analog)PDmoduleDFB LDmodulePIN-TIALDTri-bandFWDM1x8Splitter1x4SplitterTri-bandFWDMBOSAUp stream(burst)Video(analog)Voice+Data(continuous)1490

7、 DFB1310 FPPDLDBOSA91550 DFBVoice+Data(continuous)ONTUp stream(burst)Video(analog)DFB LDmoduleAPD moduleDFB LDmodulePIN-TIALDDual-bandFWDMTri-bandFWDM1x8Splitter1x4SplitterUp stream(burst)Video(analog)Voice+Data(continuous)1490 DFB1310 FPAnalog PDTriplexer10PON 系統(tǒng)組件MELCO B-PON Product11PON Applicati

8、on12Media Converter 系統(tǒng)架構(P2P)100Mbps13Media Converter 系統(tǒng)示意圖1550nm1310nm45 filter45 filterTxRxTxRxReceptacle BOSAPigtail BOSA14光路示意圖LDPDFilterFiberConnector1490nm PIN-TIA1310nmLaser Diode1550nm Photodiode12356(1490nm)(1550nm)(1310nm)415BOSA基本結構LD To-CanEngine BasePigtail HolderFilterPD To-CanFilter H

9、olderPigtail16(2) 相關元器件介紹17器件分類Active ComponentPassive ComponentMetal& Plastic Housing18Active Component主動組件(coaxial type)上游中游下游chip chipTO-canTOSA / ROSA LD moduleTransceiver End user, Sub-system, System(Butterfly, Pigtail, Receptacle)主動組件(rectangular type)(Packaging)19LD TO-canCap (Aspherical/ bal

10、l Lens)Header (Stem)ChipMonitor PDSubmount20TOSA基本結構SiOBLens cap with 8O facetHeaderZ-BushingReceptacleIsolatorLensWindow-capPD ChipLD ChipFiber StubSplit SleevePD SubmountPD ChipLD ChipLD SubmountHeader+SiOB+LD Chip+PD Chip+Cap=To-CanTo-Can+Isolator+Z-Bushing+Receptacle=TOSATo-Can21TOSA/ROSA常見問題介紹(

11、To-Can)鍍金層劃傷、缺損或粘有焊錫等管腳粘有焊錫或鍍金層缺損鍍金層氧化To-Can封蓋開縫To-Can封蓋焊帶缺陷To-Can Cap玻璃開裂BATo-Can玻璃封裝碎裂或脫落To-Can玻璃封裝碎裂或脫落22Caps characteristic23TO-56FTO-56B24TO-56CTO-56A25Offset design of TO-can26Coupling Characteristics of Offset27PINPDPD-PD+VpdGND應用：Triplexer，PD module28PIN-TIA（4pin）DataDataVccGNDPD1nFIN1nFFilt

12、er應用：GE ONU BOSA，ROSA29PIN-TIA（5pin）DataDataVccGNDPDVpd12543應用：GE PON BOSA，ROSA30APD-TIA DataDataVccGNDAPDVapd12543應用：GE PON OLT ，GPON ONU，Triplexer，ROSA31PIN Chip PIN: Positive-Intrinsic-Negative32Real case for PINs specification33APD ChipAPD: Avalanche PhotoDiode34Real case for APDs specification3

13、5Real case for APD in PON applicationResult:X direction 50umY direction 55umZ direction 800um36Passive ComponentFiberFilterLensIsolatorReceptacle37Fiber38Connect typeSC connectLC connectFC/PC connectMU/MUJ connectST connect39Connect typeFC/PCSC/PCFC/APCSC/APC40Fiber Inspection外觀 41Fiber Inspection外觀

14、42End較輕微的情況 較為嚴重的情況 43End光芯(core)與覆層(cladding)端面破損次嚴重的情況 44FilterTR0 Edge filter45RTR0 cut-off filer46Isolator47Isolator Inspection484950Metal& Plastic HousingEngine BaseFilter HolderLD Lens HolderPigtail Holder51(3) OSA制程注意事項 AssemblyLaser WeldingPD AlignmentTesting52BOSA關鍵工藝簡介Filter Assembly濾波片裝配L

15、D AssemblyLD To-Can裝配PD AlignPD耦合Laser Welding激光點焊53Assembly 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54Laser Welding焊點的外觀：顏色，位置，大小焊點的剪切力Post Weld shift (20%)55XY laswer weldingZ laswer welding56Defective Laser welding57Defective Laser welding激光焊點開裂激光焊點位置過低激光焊點位置過高激光焊點開縫激光焊點離

16、Z-Bushing太近穿透焊點過淺穿透焊點過深焊點變色58PD 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腳位的正確59TestingOutput PowerTE at low and high temp.Spectrum (WL, width and SMSR)SensitivityOver Load60產品測試項目應用測試項FPPo, Slope, Im, Vf, TE, WL, WidthDFBPo, Slope, Im, Vf, TE, WL, Width, SMSR61If(mA)P(mW)Ith邏輯1邏輯0輸入電脈沖IbImIo=Ib+I

17、mPo=(Ib+Im-Ith)/2Po數(shù)字調制If(mA)P(mW)Ith輸入電信號Io=Ib+ImPo=(Ib-Ith)Po模擬調制IbIm輸出光脈沖輸出光脈沖62產品測試項目應用測試項其它可選PINRes，IdCNR，Two-TonePIN-TIASenOLPIN-TIA(5pin)SenOL, Res, IdAPD-TIAVbr，Id，Iop，Io，Gain，SenOL63(4) OSA產品分類TOSAROSABOSA64TOSA分類TOSA分類應用工作速率工作波長芯片類型光接口形式OptionSDH/SONET155M 850nmVCSELLC/SCFiber StubIsolator

18、622M 1.244G 1310nmFP/DFB2.488G1550nmGBE1.0625G850nmVCSEL1310nmFP/DFB1550nmFC1.0625/2.125G850nmVCSEL1310nmFP/DFB1550nmCWDM155M2.67G12701610nmDFB65ROSA產品分類ROSA分類應用工作速率工作波長芯片類型光接口形式管腳定義類型SDH/SONET155M622M1.244G2.488G850nmGaAs For 850nm InGaAs For 1310/1550PIN-TIAFor Short DistanceAPD-TIAFor Long Distance LC/SC4pin For PIN-TIA5pins For APD-TIA1310nm1550nmGBE1.0625G850nm1310nm1550nmFC1.0625/2.125G850nm1310nm1550nmCWDM155M2.67G12701610nmDWDM155M2.67G1563.05 1528.77nm10G (SDH, Ethernet, FC shared)9.95310.709G850nm1310nm1550