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Technician’s Guide to WDM Devices Karl Zhao 2010-11-2 ODN Department Fixed network Planning & System Division
Preface:   News:  10 月 29 日,美国运营商 Verizon 日前完成了对 XG-PON2 这一先进的光纤传输技术的全球首次现场试验。该技术具备 10  Gbps 上下行对称宽带传输能力 .
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Projected Bandwidth Growth
Creating Technical Discontinuity
Standardization Roadmap
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
G/E PON- P2P Network
G/E PON- P2MP Network
G/E PON ,[object Object],[object Object],[object Object],[object Object],Splitter 1310nm ONU 2 OLT ONU 3 ONU 1 1490nm 1 1 3 2 1 1 3 2 1 1 3 2 1 1 3 2 1 1 3 2 1 2 1310nm 3 1310nm 1 2 3 1310nm Slot 1 Slot 2 Slot 3
WDM-PON ,[object Object],[object Object],[object Object],[object Object],λu1   λd1 λu2   λd2 λu3   λd3 λu4   λd4 ONU
RN Athermal WDM MUX/DEMUX   N 对  N 个  N 个  wavelength wavelength
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Difference between WDM-PON &TDM-PON  WDM-PON :使用波长复用和解复用器( MuxDmux ) 而不是 TDM-PON 的功率分配器 WDM-PON :连续接收机阵列,需要为每个用户单独提供接收机,即 N 个用户需要 N 个接收机。而不是 TDM-PON 中的一个。 WDM-PON :不同波长发射机阵列,传统的 TDM-PON 网络 32 或者 64 个用户才需要一个,而 WDM-PON 每个 ONT 都需要一个。这个数量的增长不仅导致设备成本的增长,而且对于功率和空间的需要也会相应增加。 WDM-PON :在每个 ONU 中需要特定波长的光发射机,而不是 TDM-PON 中的一个波长。这意味着管理和维护成本过高。需要与波长无关的  Colorless ONU 。
WDM-PON Vs. TDM PON TDM-PON 波长共享,统计复用,带宽利用率高; MAC 层协议特定; 一般 20km, 受测距所限仅支持 60km ; 分光比可支持到 1:128 ; OLT 侧接收机为突发模式,速率达到 10Gbps 后已达到瓶颈; 产业链成熟,规模商用,成本低; 带宽分配基于时隙; 同一 ODN 中各用户必须工作在同一速率上; 每个用户不可以在任何时候向 OLT 发送数据,而不影响其他用户; 标准研究活跃; 商业模式明确; 下行共享(必须加密)。 …… WDM-PON 波长独享,带宽升级潜力强; MAC 层协议无关; 传输距离长,可支持 100km ; 用户数可支持至 1000 ; OLT 侧接收机为连续模式 , 速率可支持 至 40Gbps ,关键在于 ONU 的无色光模块技术; 关键器件产业链不完整,成本高; 带宽分配未来可基于波长进行; 同一 ODN 中各用户可工作在不同速率上; 每个用户可以在任何时候向 OLT 发送数 据,而不影响其他用户; 尚无标准化活动; 商业模型不清晰; 用户独享信道,安全性好。 ……
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
AOWC - All optical wavelength conversion Hybrid TDM/WDM-PON base on AOWC  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
FTTH/FTTP GPON
XG-PON for new builds
GPON and XG-PON wavelength bands
XG-PON field trial overview
Concluding remarks and next steps
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ZTE Hybrid PON prototype TX RX TX RX TX RX TX RX XG-PON OLT filter1  XG-PON  ONU  WDM r1  G-PON  ONU   filter2  Splitter (s) G-PON OLT ,[object Object],[object Object],[object Object],[object Object],Video
WDM1r filter provided by ZTE ITU-T G.984.5 Specs
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
WDM device Brief ,[object Object],[object Object],[object Object],[object Object]
Optical Filter principle   DTF 干涉滤波器由几十层不同材料、不同折射率和不同厚度的介质膜按照设计要求组合起来。它能透过指定波长的光,而其他波长的光,由于透射率迅速下降而无法透过,从而达到了滤波的目的。因此它可以作为波长敏感元件来构成 WDM 器件
干涉膜滤光型 WDM ,[object Object],[object Object]
WWDM/CWDM Device
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Fiber& Capillary &WDM filter G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter Fibers Potting, polishing, WDM filter curing, port1 and port2 IL test
Glass Ring location Glass ring location G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring
Copper tube preparation G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring/copper tuber
Port3 Fiber& Capillary preparation  G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring/copper tuber Fibers Potting, polishing, WDM filter curing
Kit  joint G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring/copper tuber WDM filter curing, port1 and port2 and port3 IL/Isolation/PDL test
2 types packages
WDM1r specifications  0.5 ps Max Polarization Mode dispersion  0.3 dB Max Polarization dependent  loss 50 dB Min Optical return loss 50 dB Min Directivity 30 dB Min Isolation @ 1290-1330 &1480-1500 < 1  dB Max Insertion loss @ 1524 to 1625 nm < 1  dB Max Insertion loss @ 1270 +/- 10 nm 1260 to 1280 & 1524 to 1625 nm Wavelength range   r Reflect Channel 30 dB Min Isolation @ 1260 -1280 & 1524 -1625  < 0.8  dB Max Insertion Loss @ 1490 +/- 10 nm  < 0.8  dB Max Insertion loss @ 1310 +/- 20 nm 1290 to 1330 &1480 to 1500 nm Wavelength range   p Pass Channel G-PON&XG-PON1   Performance specification
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Equipments and Device for testing ,[object Object],[object Object],[object Object],Light source Spectrum analyzer
IL/Isolation for Port1 (Before adding connector) ,[object Object],[object Object],[object Object],[object Object]
IL/Isolation for Port2 (Before adding connector)  ,[object Object],[object Object],[object Object],[object Object]
IL/PDL for Port1 (Adding connector and attached adapter)  ,[object Object],[object Object]
IL/PDL for Port2 (After adding connector and attached adapter)  ,[object Object],[object Object]
Directivity (Port 1 to Port 2)  ,[object Object],[object Object]
Directivity (Port 2 to Port 1)  ,[object Object],[object Object]
Return Loss For COM ,[object Object],[object Object]
Return Loss For Port 1 ,[object Object],[object Object]
Return Loss For port 2 ,[object Object],[object Object]
Reliability Requirements ,[object Object],[object Object],[object Object],[object Object],Acceptance Spec:
Endurance test 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Endurance test 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mechanical Integrity 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mechanical Integrity 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lot Tolerance Percentage Defective (LTPD) Eg: LTPD20 表示客户有 20% 的风险收到不满足允收标准的批次
我们的产品能满足 20 年吗?
[object Object]
 

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Odn基础知识培训之wdm器件及应用

  • 1. Technician’s Guide to WDM Devices Karl Zhao 2010-11-2 ODN Department Fixed network Planning & System Division
  • 2. Preface: News: 10 月 29 日,美国运营商 Verizon 日前完成了对 XG-PON2 这一先进的光纤传输技术的全球首次现场试验。该技术具备 10 Gbps 上下行对称宽带传输能力 .
  • 3.
  • 4.
  • 8.
  • 9. G/E PON- P2P Network
  • 10. G/E PON- P2MP Network
  • 11.
  • 12.
  • 13. RN Athermal WDM MUX/DEMUX N 对 N 个 N 个 wavelength wavelength
  • 14.
  • 15. The Difference between WDM-PON &TDM-PON WDM-PON :使用波长复用和解复用器( MuxDmux ) 而不是 TDM-PON 的功率分配器 WDM-PON :连续接收机阵列,需要为每个用户单独提供接收机,即 N 个用户需要 N 个接收机。而不是 TDM-PON 中的一个。 WDM-PON :不同波长发射机阵列,传统的 TDM-PON 网络 32 或者 64 个用户才需要一个,而 WDM-PON 每个 ONT 都需要一个。这个数量的增长不仅导致设备成本的增长,而且对于功率和空间的需要也会相应增加。 WDM-PON :在每个 ONU 中需要特定波长的光发射机,而不是 TDM-PON 中的一个波长。这意味着管理和维护成本过高。需要与波长无关的 Colorless ONU 。
  • 16. WDM-PON Vs. TDM PON TDM-PON 波长共享,统计复用,带宽利用率高; MAC 层协议特定; 一般 20km, 受测距所限仅支持 60km ; 分光比可支持到 1:128 ; OLT 侧接收机为突发模式,速率达到 10Gbps 后已达到瓶颈; 产业链成熟,规模商用,成本低; 带宽分配基于时隙; 同一 ODN 中各用户必须工作在同一速率上; 每个用户不可以在任何时候向 OLT 发送数据,而不影响其他用户; 标准研究活跃; 商业模式明确; 下行共享(必须加密)。 …… WDM-PON 波长独享,带宽升级潜力强; MAC 层协议无关; 传输距离长,可支持 100km ; 用户数可支持至 1000 ; OLT 侧接收机为连续模式 , 速率可支持 至 40Gbps ,关键在于 ONU 的无色光模块技术; 关键器件产业链不完整,成本高; 带宽分配未来可基于波长进行; 同一 ODN 中各用户可工作在不同速率上; 每个用户可以在任何时候向 OLT 发送数 据,而不影响其他用户; 尚无标准化活动; 商业模型不清晰; 用户独享信道,安全性好。 ……
  • 17.
  • 18.
  • 20. XG-PON for new builds
  • 21. GPON and XG-PON wavelength bands
  • 22. XG-PON field trial overview
  • 24.
  • 25.
  • 26. WDM1r filter provided by ZTE ITU-T G.984.5 Specs
  • 27.
  • 28.
  • 29. Optical Filter principle   DTF 干涉滤波器由几十层不同材料、不同折射率和不同厚度的介质膜按照设计要求组合起来。它能透过指定波长的光,而其他波长的光,由于透射率迅速下降而无法透过,从而达到了滤波的目的。因此它可以作为波长敏感元件来构成 WDM 器件
  • 30.
  • 32.
  • 33. Fiber& Capillary &WDM filter G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter Fibers Potting, polishing, WDM filter curing, port1 and port2 IL test
  • 34. Glass Ring location Glass ring location G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring
  • 35. Copper tube preparation G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring/copper tuber
  • 36. Port3 Fiber& Capillary preparation G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring/copper tuber Fibers Potting, polishing, WDM filter curing
  • 37. Kit joint G652.C/D Fibers/Capillary /Glass Ferrule/WDM Filter/Glass ring/copper tuber WDM filter curing, port1 and port2 and port3 IL/Isolation/PDL test
  • 39. WDM1r specifications 0.5 ps Max Polarization Mode dispersion 0.3 dB Max Polarization dependent loss 50 dB Min Optical return loss 50 dB Min Directivity 30 dB Min Isolation @ 1290-1330 &1480-1500 < 1 dB Max Insertion loss @ 1524 to 1625 nm < 1 dB Max Insertion loss @ 1270 +/- 10 nm 1260 to 1280 & 1524 to 1625 nm Wavelength range  r Reflect Channel 30 dB Min Isolation @ 1260 -1280 & 1524 -1625 < 0.8 dB Max Insertion Loss @ 1490 +/- 10 nm < 0.8 dB Max Insertion loss @ 1310 +/- 20 nm 1290 to 1330 &1480 to 1500 nm Wavelength range  p Pass Channel G-PON&XG-PON1 Performance specification
  • 40.
  • 41.
  • 42.
  • 43.
  • 44.
  • 45.
  • 46.
  • 47.
  • 48.
  • 49.
  • 50.
  • 51.
  • 52.
  • 53.
  • 54.
  • 55.
  • 56. Lot Tolerance Percentage Defective (LTPD) Eg: LTPD20 表示客户有 20% 的风险收到不满足允收标准的批次
  • 58.
  • 59.  

Notas do Editor

  1. WDM PON business drivers
  2. 接收侧也可以采用相干接收来提高传输距离。将已调制信号的频率和相位,与载波分量相同的正弦振荡分别相加的幅度解调。 50GHZ
  3.    光滤波器是用来进行波长选择的器件,它可以从一束具有多个波长的射入光中滤出所需的波长,而除此波长以外的光将会被拒绝通过。它可以用于波长选择、光放大器的噪声滤除、增益均衡和 WDM 器件等。当滤光器设计成 WDM 器件时,它只能传输某一指定波长信道中的光信号,而对其他波长的光信号实行吸收或反射
  4. 100mmX80mmX10mm