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    • 2. 发明申请
    • WDM-PON having bus structure
    • 具有总线结构的WDM-PON
    • US20050117903A1
    • 2005-06-02
    • US10854348
    • 2004-05-26
    • Sung-Bum ParkSeong-Taek HwangIn-Kwon Kang
    • Sung-Bum ParkSeong-Taek HwangIn-Kwon Kang
    • H04B10/20H04J14/00H04J14/02
    • H04J14/028H04J14/0216H04J14/0226H04J14/0227H04J14/0246H04J14/025
    • Disclosure is a wavelength division multiplexed-passive optical network having a bus structure capable of connecting one central office to a plurality of remote nodes through one optical fiber. The wavelength division multiplexed-passive optical network (WDM-PON) having a bus structure includes a central office for downwardly transferring downstream optical signals having different wavelengths through a feeder fiber and for receiving upstream optical signals upwardly transferred through the feeder fiber; a plurality of remote nodes including at least a first remote node connected to the central office through the feeder fiber and a second remote node connected to the first remote node through the feeder fiber, dropping optical signals having corresponding wavelengths from among downwardly-transferred optical signals from the central office to at least one subscriber unit connected to each of the remote nodes, and adding the upstream optical signals, which are upwardly transferred from each subscriber unit, so as to upwardly transfer the upstream optical signals to the central office; and at least one subscriber unit for receiving the optical signals having the corresponding wavelengths dropped from each of the remote nodes and for upwardly transferring the upstream optical signals having different wavelengths through each of the remote nodes.
    • 公开是具有能够通过一根光纤将一个中心局连接到多个远程节点的总线结构的波分复用无源光网络。 具有总线结构的波分多路复用无源光网络(WDM-PON)包括:中心局,用于通过馈线光纤向下传输具有不同波长的下行光信号,并用于接收通过馈线光纤向上传输的上行光信号; 多个远程节点,包括至少通过馈线光纤连接到中心局的第一远程节点和通过馈线光纤连接到第一远程节点的第二远程节点,从向下传送的光信号中丢弃具有相应波长的光信号 从中心局到至少一个连接到每个远程节点的用户单元,并且添加从每个用户单元向上传送的上游光信号,以向上传送上游光信号到中心局; 以及至少一个用户单元,用于接收具有从每个远程节点丢弃的相应波长的光信号,并且用于通过每个远程节点向上传送具有不同波长的上行光信号。
    • 3. 发明授权
    • WDM-PON having bus structure
    • 具有总线结构的WDM-PON
    • US07310481B2
    • 2007-12-18
    • US10854348
    • 2004-05-26
    • Sung-Bum ParkSeong-Taek HwangIn-Kwon Kang
    • Sung-Bum ParkSeong-Taek HwangIn-Kwon Kang
    • H04J14/00
    • H04J14/028H04J14/0216H04J14/0226H04J14/0227H04J14/0246H04J14/025
    • Disclosure is a wavelength division multiplexed-passive optical network having a bus structure capable of connecting one central office to a plurality of remote nodes through one optical fiber. The wavelength division multiplexed-passive optical network (WDM-PON) having a bus structure includes a central office for downwardly transferring downstream optical signals having different wavelengths through a feeder fiber and for receiving upstream optical signals upwardly transferred through the feeder fiber; a plurality of remote nodes including at least a first remote node connected to the central office through the feeder fiber and a second remote node connected to the first remote node through the feeder fiber, dropping optical signals having corresponding wavelengths from among downwardly-transferred optical signals from the central office to at least one subscriber unit connected to each of the remote nodes, and adding the upstream optical signals, which are upwardly transferred from each subscriber unit, so as to upwardly transfer the upstream optical signals to the central office; and at least one subscriber unit for receiving the optical signals having the corresponding wavelengths dropped from each of the remote nodes and for upwardly transferring the upstream optical signals having different wavelengths through each of the remote nodes.
    • 公开是具有能够通过一根光纤将一个中心局连接到多个远程节点的总线结构的波分复用无源光网络。 具有总线结构的波分多路复用无源光网络(WDM-PON)包括:中心局,用于通过馈线光纤向下传输具有不同波长的下行光信号,并用于接收通过馈线光纤向上传输的上行光信号; 多个远程节点,包括至少通过馈线光纤连接到中心局的第一远程节点和通过馈线光纤连接到第一远程节点的第二远程节点,从向下传送的光信号中丢弃具有相应波长的光信号 从中心局到至少一个连接到每个远程节点的用户单元,并且添加从每个用户单元向上传送的上游光信号,以向上传送上游光信号到中心局; 以及至少一个用户单元,用于接收具有从每个远程节点丢弃的相应波长的光信号,并且用于通过每个远程节点向上传送具有不同波长的上行光信号。
    • 5. 发明授权
    • Wideband optical module and PON using the same
    • 宽带光模块和PON使用相同
    • US07280719B2
    • 2007-10-09
    • US11143238
    • 2005-06-02
    • Jae-Hoon LeeSung-Bum ParkYun-Je OhSeong-Taek HwangHyun-Soo Kim
    • Jae-Hoon LeeSung-Bum ParkYun-Je OhSeong-Taek HwangHyun-Soo Kim
    • G02B6/28
    • H04J14/02H04B10/296H04B10/2972
    • A wideband optical module includes a downward wideband light source for generating downward light, an upward wideband light source for generating upward light, a first circulator including a first to a third port for outputting multiplexed downward optical signals to the second port and for outputting multiplexed upward optical signals to the first port, a second circulator including a first to a third port for outputting multiplexed upward optical signals to the second port and for outputting multiplexed downward optical signals to the first port, a first optical coupler connected to the third port of the first circulator and the second port of the second circulator for outputting the downward light to the third port of the first circulator, and a second optical coupler connected to the second port of the first circulator and the third port of the second circulator for outputting the upward light to the third port of the second circulator.
    • 宽带光模块包括用于产生向下的光的向下宽带光源,用于产生向上光的向上宽带光源,包括第一至第三端口的第一循环器,用于将多路复用的下行光信号输出到第二端口并用于输出多路复用 光信号到第一端口,第二循环器,包括第一至第三端口,用于将多路复用的上行光信号输出到第二端口,并将多路复用的下行光信号输出到第一端口;第一光耦合器,连接到第一端口的第三端口 第一循环器和第二循环器的第二端口,用于将向下的光输出到第一循环器的第三端口;以及第二光耦合器,连接到第一循环器的第二端口和第二循环器的第三端口,用于输出向上 光到第二个循环器的第三个端口。
    • 6. 发明申请
    • Bi-directional optical cross coupler
    • 双向光学交叉耦合器
    • US20070116463A1
    • 2007-05-24
    • US11592638
    • 2006-11-03
    • Sung-Bum ParkSeong-Taek Hwang
    • Sung-Bum ParkSeong-Taek Hwang
    • H04J14/00
    • H04J14/02
    • An optical cross coupler for connecting at least two different optical communication networks includes: first to fourth circulators, each circulator comprising first to fourth ports, the first port connected to a relevant communication network; a first line connecting the second port of the first circulator and the fourth port of the second circulator; a second line connecting the fourth port of the first circulator and the second port of the second circulator; a third line connecting the second port of the third circulator and the fourth port of the fourth circulator; a fourth line connecting the fourth port of the third circulator and the second port of the fourth circulator; a fifth line connecting the third port of the first circulator and the third port of the fourth circulator; and a sixth line connecting the third port of the second circulator and the third port of the third circulator.
    • 用于连接至少两个不同光通信网络的光交叉耦合器包括:第一至第四循环器,每个循环器包括第一至第四端口,所述第一端口连接到相关通信网络; 连接第一循环器的第二端口和第二循环器的第四端口的第一线路; 连接第一循环器的第四端口和第二循环器的第二端口的第二管线; 连接第三循环器的第二端口和第四循环器的第四端口的第三线路; 连接第三循环器的第四端口和第四循环器的第二端口的第四线路; 连接第一循环器的第三端口和第四循环器的第三端口的第五线路; 以及连接第二循环器的第三端口和第三循环器的第三端口的第六线路。
    • 7. 发明申请
    • Optical add-drop multiplexer
    • 光分插复用器
    • US20060216030A1
    • 2006-09-28
    • US11390699
    • 2006-03-28
    • Byung-Jik KimSung-Bum ParkSeong-Taek Hwang
    • Byung-Jik KimSung-Bum ParkSeong-Taek Hwang
    • H04J14/02
    • H04J14/0201
    • An optical add-drop multiplexer is disclosed. The optical add-drop multiplexer includes a first loop for dropping a first polarized light signal having a corresponding wavelength from a multiplexed downstream optical signal and adding a second polarized light signal having a corresponding wavelength to a multiplexed upstream optical signal and a second loop for adding a first polarized light signal having a corresponding wavelength to the downstream optical signal input from the first loop. An upstream optical signal is output in which a second polarized light signal having a corresponding wavelength is dropped from towards the first loop and the multiplezer also includes a Bragg grating placed between the first and second loops for reflecting the first and second polarized light signals having the corresponding wavelengths respectively towards the first and second loops.
    • 公开了一种光分插复用器。 所述光分插复用器包括:第一回路,用于从多路复用的下行光信号中丢弃具有相应波长的第一偏振光信号,并将具有相应波长的第二偏振光信号与复用的上游光信号相加;以及第二循环, 第一偏振光信号具有与从第一环路输入的下行光信号相对应的波长。 输出上游光信号,其中具有相应波长的第二偏振光信号从第一环向下落,并且倍频器还包括放置在第一和第二环之间的布拉格光栅,用于反射具有第一和第二偏振光信号的第一和第二偏振光信号, 相应的波长分别朝向第一和第二回路。
    • 9. 发明申请
    • Bi-directional add/drop node
    • 双向添加/删除节点
    • US20050141894A1
    • 2005-06-30
    • US10860717
    • 2004-06-03
    • Sung-Kee KimYun-Je OhSeong-Taek HwangSung-Bum Park
    • Sung-Kee KimYun-Je OhSeong-Taek HwangSung-Bum Park
    • H04B10/03H04B10/00H04B10/038H04B10/07H04B10/079H04B10/2507H04B10/275H04B10/29H04J14/02
    • H04J14/0227H04J14/0208H04J14/0216H04J14/0241H04J14/0283
    • A bi-directional add/drop node employed in a bi-directional path-switching network linked by an optical fiber in a loop form is disclosed. The bi-directional add/drop node has a first terminal point and a second terminal point for receiving channels over the optical fiber such that odd channels are inputted through the first terminal point are outputted through the second terminal point and even channels are inputted through the second terminal point are outputted through the first terminal point. The bi-directional add/drop node comprises, a circulation section for circulating the even and odd channels in a predetermined direction, a first input-output section located between the circulation section and the first terminal point wherein the first input-output section outputs the odd channels inputted from the first terminal point to the circulation section through a first input line and outputs the even channels inputted from the circulation section to the first terminal point through a first output line, and a second input-output section positioned between the circulation section and the second terminal point, wherein the second input-output section outputs the even channels inputted from the second terminal point to the circulation section through a second input line and outputs the odd channels inputted from the circulation section to the second terminal point through a second output line.
    • 公开了一种在由光纤以环形形式链接的双向路径交换网络中采用的双向加/减节点。 双向分插节点具有用于在光纤上接收信道的第一终端点和第二终端点,使得通过第一终端点输入奇数信道,并通过第二终端点输入偶数信道 第二终点通过第一终点输出。 双向分插节点包括:循环部分,用于沿预定方向循环偶数和奇数通道;第一输入 - 输出部分,位于循环部分和第一终点之间,其中第一输入 - 输出部分输出 通过第一输入线从第一终端点输入到循环部的奇数通道,并且通过第一输出线将从循环部输入的偶数通道输出到第一终点;以及位于循环部之间的第二输入输出部 和第二终点,其中第二输入 - 输出部分通过第二输入线将从第二终端点输入的偶数通道输出到循环部分,并且通过第二输出部分将从循环部分输入的奇数通道输出到第二终点 输出线。