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    • 4. 发明授权
    • Method and network architecture for upgrading legacy passive optical network to wavelength division multiplexing passive optical network based next-generation passive optical network
    • 将传统无源光网络升级为波分复用无源光网络的下一代无源光网络的方法和网络架构
    • US07773838B2
    • 2010-08-10
    • US12513741
    • 2006-11-14
    • Chang-Hee LeeKi-Man ChoiSil-Gu MunJung-Hyung MoonHoon-Keun Lee
    • Chang-Hee LeeKi-Man ChoiSil-Gu MunJung-Hyung MoonHoon-Keun Lee
    • G02B6/28
    • H04J14/02H04J14/0201H04J14/0226H04J14/0227H04J14/0247H04J14/0252H04J14/0282H04J2014/0253
    • The present invention discloses a network architecture for upgrading a legacy time division multiplexing-passive optical network (TDM-PON) to a wavelength division multiplexing-passive optical network (WDM-PON) based next-generation passive optical network (next-generation PON), wherein the legacy TDM-PON comprises: a central office (CO) having a first optical line termination (OLT); a remote node (RN) having a splitter; a single mode fiber (SMF) connecting the first OLT and the splitter; and a first group of one or more optical network terminations (ONTs) being connected to the splitter by a first group of one or more distribution fibers, and wherein the network architecture further comprises: in case that the next-generation PON is a WDM-PON, a first apparatus for combining and splitting wavelength bands being positioned between the SMF and the first OLT, in order to add a second OLT to be used for the WDM-PON within the CO or within another CO which is located in a position different from the CO, while sharing the SMF; a second apparatus for combining and splitting wavelength bands being positioned at a front terminal of the splitter; and an arrayed waveguide grating (AWG) being connected to the second apparatus for combining and splitting wavelength bands within the RN, and being connected to a second group of one or more ONTs by a second group of one or more distribution fibers within the RN or within another RN which is located in a position different from the RN.
    • 本发明公开了一种用于将传统时分复用无源光网络(TDM-PON)升级为基于波分多路复用无源光网络(WDM-PON)的下一代无源光网络(下一代PON)的网络架构, ,其中所述传统TDM-PON包括:具有第一光线路终端(OLT)的中心局(CO); 具有分离器的远程节点(RN); 连接第一OLT和分离器的单模光纤(SMF); 以及由第一组一个或多个分配光纤连接到分离器的第一组一个或多个光网络终端(ONT),并且其中所述网络架构还包括:在下一代PON是WDM- PON是用于组合和分离位于SMF和第一OLT之间的波长带的第一装置,以便添加用于CO内的WDM-PON或位于不同位置的另一CO内的WDM-PON的第二OLT 从CO共享SMF; 用于组合和分离位于分离器的前端的波长带的第二装置; 和连接到第二装置的阵列波导光栅(AWG),用于组合和分离RN内的波段,并且由RN内的一个或多个分配光纤的第二组连接到一个或多个ONT的第二组,或者 位于与RN不同的位置的另一RN内。
    • 5. 发明申请
    • METHOD AND NETWORK ARCHITECTURE FOR UPGRADING LEGACY PASSIVE OPTICAL NETWORK TO WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK BASED NEXT-GENERATION PASSIVE OPTICAL NETWORK
    • 用于将LEGACY被动光网络升级为波长段的方法和网络架构多路复用基于无源光网络的下一代被动光网络
    • US20100054740A1
    • 2010-03-04
    • US12513741
    • 2006-11-14
    • Chang-Hee LeeKi-Man ChoiSil-Gu MunJung-Hyung MoonHoon-Keun Lee
    • Chang-Hee LeeKi-Man ChoiSil-Gu MunJung-Hyung MoonHoon-Keun Lee
    • H04J14/00H04J14/08H04J14/02
    • H04J14/02H04J14/0201H04J14/0226H04J14/0227H04J14/0247H04J14/0252H04J14/0282H04J2014/0253
    • The present invention discloses a network architecture for upgrading a legacy time division multiplexing-passive optical network (TDM-PON) to a wavelength division multiplexing-passive optical network (WDM-PON) based next-generation passive optical network (next-generation PON), wherein the legacy TDM-PON comprises: a central office (CO) having a first optical line termination (OLT); a remote node (RN) having a splitter; a single mode fiber (SMF) connecting the first OLT and the splitter; and a first group of one or more optical network terminations (ONTs) being connected to the splitter by a first group of one or more distribution fibers, and wherein the network architecture further comprises: in case that the next-generation PON is a WDM-PON, a first apparatus for combining and splitting wavelength bands being positioned between the SMF and the first OLT, in order to add a second OLT to be used for the WDM-PON within the CO or within another CO which is located in a position different from the CO, while sharing the SMF; a second apparatus for combining and splitting wavelength bands being positioned at a front terminal of the splitter; and an arrayed waveguide grating (AWG) being connected to the second apparatus for combining and splitting wavelength bands within the RN, and being connected to a second group of one or more ONTs by a second group of one or more distribution fibers within the RN or within another RN which is located in a position different from the RN.
    • 本发明公开了一种用于将传统时分复用无源光网络(TDM-PON)升级为基于波分多路复用无源光网络(WDM-PON)的下一代无源光网络(下一代PON)的网络架构, ,其中所述传统TDM-PON包括:具有第一光线路终端(OLT)的中心局(CO); 具有分离器的远程节点(RN); 连接第一OLT和分离器的单模光纤(SMF); 以及由第一组一个或多个分配光纤连接到分离器的第一组一个或多个光网络终端(ONT),并且其中所述网络架构还包括:在下一代PON是WDM- PON是用于组合和分离位于SMF和第一OLT之间的波长带的第一装置,以便添加用于CO内的WDM-PON或位于不同位置的另一CO内的WDM-PON的第二OLT 从CO共享SMF; 用于组合和分离位于分离器的前端的波长带的第二装置; 和连接到第二装置的阵列波导光栅(AWG),用于组合和分离RN内的波段,并且由RN内的一个或多个分配光纤的第二组连接到一个或多个ONT的第二组,或者 位于与RN不同的位置的另一RN内。
    • 10. 发明授权
    • Multiple star wavelength division multiplexing passive optical networks using a wavelength assignment method
    • 使用波长分配方法的多星波分复用无源光网络
    • US08687972B2
    • 2014-04-01
    • US13353204
    • 2012-01-18
    • Chang-Hee LeeSang-Mook LeeSil-Gu Mun
    • Chang-Hee LeeSang-Mook LeeSil-Gu Mun
    • H04B10/00
    • H04J14/0246H04J14/0226H04J14/0247H04J14/025H04J14/0252H04J14/0257H04J14/0282
    • The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method.In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provides services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down-stream basic band, respectively, and by dividing each of the up-stream basic band and the down-stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.
    • 本发明公开了一种使用波长分配方法的多星波分复用无源光网络系统。 在使用根据本发明的波长分配方法的多星波分复用无源光网络系统中,只有一个WDM-PON系统可以通过多重主播向广泛范围内分布的多个用户提供服务,通过 设置一个或多个频带,用于发送上行信号作为上行基本频带和用于发送下行流信号的一个或多个频带作为下行基本频带,并且通过划分每个上行基本频带 和下游基本频带分成多个波长子带,并使用将频带分成两个或更多个子频带的波分多路复用器/去多路复用器将分割的子带分配给不同的区域。