OSA產(chǎn)品及零件簡介及應(yīng)用1

1、OSA產(chǎn)品及零件簡介及應(yīng)用1Content (1) OSA簡介 (2) 相關(guān)元器件介紹 (3) OSA制程注意事項(xiàng) (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(zhì)PN結(jié)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(luò)單元SDH: Synchronous Digital Hierarchy, 同步數(shù)字體系SONET: Synchronous Optical Network, 光同步網(wǎng)絡(luò)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(xué)會)IEEE 802(IEEE 802 se

4、ries of standards for Local Area Networks, 電氣及電子工程師學(xué)會802系列標(biāo)準(zhǔn)) 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(biāo)準(zhǔn)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(luò)）技術(shù)是一種點(diǎn)對多點(diǎn)的光纖傳輸和接入技術(shù);下行采用廣播方式、上行采用時(shí)分多址方式，可以靈活地組成樹型、星型、總線型等拓?fù)浣Y(jié)構(gòu);在光分支點(diǎn)不需要節(jié)點(diǎn)設(shè)備，只需要安裝一個(gè)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(luò)的分路由光分路器來實(shí)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(gòu)(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(jié)構(gòu)LD To-CanEngine BasePigtail HolderFilterPD To-CanFilter H

9、olderPigtail16(2) 相關(guān)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(jié)構(gòu)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(yīng)用：Triplexer，PD module28PIN-TIA（4pin）DataDataVccGNDPD1nFIN1nFFilt

12、er應(yīng)用：GE ONU BOSA，ROSA29PIN-TIA（5pin）DataDataVccGNDPDVpd12543應(yīng)用：GE PON BOSA，ROSA30APD-TIA DataDataVccGNDAPDVapd12543應(yīng)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(yán)重的情況 43End光芯(core)與覆層(cladding)端面破損次嚴(yán)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(xiàng) AssemblyLaser WeldingPD AlignmentTesting52BOSA關(guān)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(diǎn)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(hù) 膠的保存條件及固化顏色54Laser Welding焊點(diǎn)的外觀：顏色，位置，大小焊點(diǎn)的剪切力Post Weld shift (20%)55XY laswer weldingZ laswer welding56Defective Laser welding57Defective Laser welding激光焊點(diǎn)開裂激光焊點(diǎn)位置過低激光焊點(diǎn)位置過高激光焊點(diǎn)開縫激光焊點(diǎn)離

16、Z-Bushing太近穿透焊點(diǎn)過淺穿透焊點(diǎn)過深焊點(diǎn)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(chǎn)品測試項(xiàng)目應(yīng)用測試項(xiàng)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(diào)制If(mA)P(mW)Ith輸入電信號Io=Ib+ImPo=(Ib-Ith)Po模擬調(diào)制IbIm輸出光脈沖輸出光脈沖62產(chǎn)品測試項(xiàng)目應(yīng)用測試項(xiàng)其它可選PINRes，IdCNR，Two-TonePIN-TIASenOLPIN-TIA(5pin)SenOL, Res, IdAPD-TIAVbr，Id，Iop，Io，Gain，SenOL63(4) OSA產(chǎn)品分類TOSAROSABOSA64TOSA分類TOSA分類應(yīng)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(chǎn)品分類ROSA分類應(yīng)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