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    Low Cost Secure ROADM Branching Unit With Redundancy Protection
    11.
    发明申请
    Low Cost Secure ROADM Branching Unit With Redundancy Protection 有权
    低成本安全ROADM分支单元具有冗余保护

    公开(公告)号：US20160301467A1

    公开(公告)日：2016-10-13

    申请号：US15090642

    申请日：2016-04-05

    Applicant: NEC Laboratories America, Inc.

    Inventor： Philip Nan Ji ,  Ting Wang ,  Ryuji Aida

    IPC: H04B10/032 ,  H04B10/25 ,  H04Q11/00 ,  H04J14/02

    CPC classification number: H04B10/032 ,  H04B10/2503 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0043

    Abstract: A communication system includes a primary module with: first trunk and branch input and output ports, each coupled to first in/out couplers, the first in/out couplers coupled to first circulators, and the circulators in turn coupled to first central couplers; second trunk branch input and output ports, each coupled to second in/out couplers, each of second in/out couplers coupled to second circulators; and first and second bidirectional wavelength-selective switches (WSSes) coupled to the first central couplers. The system also includes a secondary module with first trunk and branch input and output ports, each coupled to first in/out couplers, the first in/out couplers coupled to third circulators, and the circulators in turn coupled to second central couplers; second trunk branch input and output ports, each coupled to second in/out couplers, each of second in/out couplers coupled to fourth circulators, and third and fourth bidirectional wavelength-selective switches (WSSes) coupled to the second central couplers. The system further includes one or more 2×2 switches coupling the primary module WSS outputs with the secondary module WSS outputs.

    Abstract translation: 通信系统包括主模块，其具有：第一中继线和分支输入和输出端口，每个耦合到第一进/出耦合器，耦合到第一循环器的第一输入/输出耦合器，并且循环器又耦合到第一中心耦合器; 第二中继线分支输入和输出端口，每个耦合到第二输入/输出耦合器，每个第二输入/输出耦合器耦合到第二循环器; 以及耦合到第一中心耦合器的第一和第二双向波长选择开关（WSS）。 该系统还包括具有第一干线和分支输入和输出端口的二次模块，每个耦合到第一进/出耦合器，耦合到第三循环器的第一输入/输出耦合器，并且循环器又耦合到第二中心耦合器; 第二中继分支输入和输出端口，每个耦合到第二输入/输出耦合器，耦合到第四循环器的每个第二输入/输出耦合器，以及耦合到第二中心耦合器的第三和第四双向波长选择开关（WSS）。 该系统还包括一个或多个将主模块WSS输出与次模块WSS输出耦合的2×2开关。

    SECURE WAVELENGTH SELECTIVE SWITCH-BASED RECONFIGURABLE BRANCHING UNIT FOR SUBMARINE NETWORK
    12.
    发明申请
    SECURE WAVELENGTH SELECTIVE SWITCH-BASED RECONFIGURABLE BRANCHING UNIT FOR SUBMARINE NETWORK 审中-公开
    安全波长选择开关的子网络可重新分配单元

    公开(公告)号：US20150093111A1

    公开(公告)日：2015-04-02

    申请号：US14504639

    申请日：2014-10-02

    Applicant: NEC Laboratories America, Inc.

    Inventor： Ting Wang ,  Ryuji Aida ,  Philip Ji

    IPC: H04Q11/00 ,  H04B10/80

    CPC classification number: H04Q11/0005 ,  H04B10/80 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q11/0062 ,  H04Q2011/0037

    Abstract: Systems and methods for method for data transport using secure reconfigurable branching units, including receiving signals from a first trunk terminal and a second trunk terminal by branching units. Broadcasting is prevented for secure information delivery by dividing, within the branching units, the signals from the first trunk terminal and the second trunk terminal into three or more sections. Signals may be received from a branch terminal by one or more branching units using a single branch fiber pair, and the signals from the branch terminals may be divided into three or more groups of optical channels, wherein at least e of the channels includes dummy light. The divided signals from the first trunk terminal, the second trunk terminal, and dummy light from the branch terminal may be merged, and the merged signal sent to the branch terminal.

    Abstract translation: 使用安全可重配置分支单元的数据传输方法的系统和方法，包括通过分支单元从第一中继线端子和第二干线端子接收信号。 通过在分支单元内将来自第一干线端子和第二干线端子的信号分成三个或更多个部分来防止广播，从而进行安全的信息传递。 可以通过使用单个分支光纤对的一个或多个分支单元从分支终端接收信号，并且来自分支终端的信号可以被划分为三组或更多组光信道，其中至少e个信道包括伪光 。 来自第一中继线端子，第二干线端子和来自分支端子的虚拟光的分频信号可以被合并，并且合并信号被发送到分支终端。

    Secure wavelength selective switch-based reconfigurable branching unit for submarine network
    16.
    发明授权
    Secure wavelength selective switch-based reconfigurable branching unit for submarine network 有权
    用于海底网络的安全的基于波长选择性开关的可重配置分支单元

    公开(公告)号：US09414134B2

    公开(公告)日：2016-08-09

    申请号：US14504597

    申请日：2014-10-02

    Applicant: NEC Laboratories America, Inc.

    Inventor： Ting Wang ,  Ryuji Aida ,  Philip Ji

    IPC: H04J14/02 ,  H04B10/00 ,  H04Q11/00 ,  H04B10/80

    CPC classification number: H04Q11/0005 ,  H04B10/80 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q11/0062 ,  H04Q2011/0037

    Abstract: Systems and methods for method for data transport using secure reconfigurable branching units, including receiving signals from a first trunk terminal and a second trunk terminal by branching units. Broadcasting is prevented for secure information delivery by dividing, within the branching units, the one or more signals from the first trunk terminal and the second trunk terminal into two or more sections, and sending the two or more sections to an optical coupler. Signals may be received from a branch terminal by one or more branching units using two fiber pairs, and the signals from the branch terminals may be divided into two or more groups of optical sections, wherein one of the sections includes dummy light. The divided signals from the first trunk terminal, the second trunk terminal, and dummy light from the branch terminal may be merged, and the merged signal sent to the branch terminal.

    Abstract translation: 使用安全可重配置分支单元的数据传输方法的系统和方法，包括通过分支单元从第一中继线端子和第二干线端子接收信号。 通过在分支单元内将来自第一中继线端子和第二干线端子的一个或多个信号分成两个或更多个部分，并将两个或更多个部分发送到光耦合器，防止了安全信息传送的广播。 可以通过使用两个光纤对的一个或多个分支单元从分支终端接收信号，并且来自分支终端的信号可以被划分为两组或更多组光学部分，其中一个部分包括虚拟光。 来自第一中继线端子，第二干线端子和来自分支端子的虚拟光的分频信号可以被合并，并且合并信号被发送到分支终端。

    LATCHING OPTICAL SWITCH AND SUBSYSTEM USING BISTABLE LIQUID CRYSTAL
    17.
    发明申请
    LATCHING OPTICAL SWITCH AND SUBSYSTEM USING BISTABLE LIQUID CRYSTAL 审中-公开
    锁定光学开关和使用双向液晶的子系统

    公开(公告)号：US20140241720A1

    公开(公告)日：2014-08-28

    申请号：US14188671

    申请日：2014-02-24

    Applicant: NEC Laboratories America, Inc.

    Inventor： Philip Nan Ji ,  Ting Wang ,  Ryuji Aida

    IPC: H04Q11/00

    CPC classification number: H04Q11/0066 ,  H04Q11/0005 ,  H04Q2011/0032 ,  H04Q2201/804 ,  H04Q2213/013 ,  H04Q2213/13003 ,  H04Q2213/1301

    Abstract: A submarine network includes a submarine network with a branching unit BU for splitting or combining a signal between a main trunk path and a branch path for allowing signals from different paths to share a same fiber optic path, said BU and submarine network normally having a fixed and predetermined wavelength arrangement preventing reconfigurability of the submarine network, and a latching wavelength selective switch WSS or wavelength blocker WB in the branching unit for splitting or combining the signals between the main trunk path and branch path to enable a latching capability and enable reconfigurability of the branching unit BU, the latching WSSS being a bistable liquid crystal based material without moving parts for increased stability and lower power consumption over use of conventional mono-stable liquid crystal LC switches in a submarine network.

    Abstract translation: 潜艇网络包括具有分支单元BU的海底网络，用于分裂或组合主干道路径和分支路径之间的信号，以允许来自不同路径的信号共享相同的光纤路径，所述BU和海底网络通常具有固定的 以及防止海底网络的可重新配置的预定波长布置，以及分支单元中的锁存波长选择开关WSS或波长阻挡器WB，用于分裂或组合主干道和分支路径之间的信号，以实现锁存能力并使得能够实现 分支单元BU，锁定WSSS是基于双稳态液晶的材料，没有移动部件，用于增加稳定性，并且在潜艇网络中使用常规单稳态液晶LC开关的功耗更低。

    Low cost secure ROADM branching unit with redundancy protection
    19.
    发明授权
    Low cost secure ROADM branching unit with redundancy protection 有权

    公开(公告)号：US09654209B2

    公开(公告)日：2017-05-16

    申请号：US15090642

    申请日：2016-04-05

    Applicant: NEC Laboratories America, Inc.

    Inventor： Philip Nan Ji ,  Ting Wang ,  Ryuji Aida

    IPC: H04B10/00 ,  H04B10/032 ,  H04J14/02 ,  H04B10/25 ,  H04Q11/00

    CPC classification number: H04B10/032 ,  H04B10/2503 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0043

    Abstract: A communication system includes a primary module with: first trunk and branch input and output ports, each coupled to first in/out couplers, the first in/out couplers coupled to first circulators, and the circulators in turn coupled to first central couplers; second trunk branch input and output ports, each coupled to second in/out couplers, each of second in/out couplers coupled to second circulators; and first and second bidirectional wavelength-selective switches (WSSes) coupled to the first central couplers. The system also includes a secondary module with first trunk and branch input and output ports, each coupled to first in/out couplers, the first in/out couplers coupled to third circulators, and the circulators in turn coupled to second central couplers; second trunk branch input and output ports, each coupled to second in/out couplers, each of second in/out couplers coupled to fourth circulators, and third and fourth bidirectional wavelength-selective switches (WSSes) coupled to the second central couplers. The system further includes one or more 2×2 switches coupling the primary module WSS outputs with the secondary module WSS outputs.

    Low Cost Secure Submarine ROADM Branching Unit Using Bidirectional Wavelength-Selective Switch
    20.
    发明申请
    Low Cost Secure Submarine ROADM Branching Unit Using Bidirectional Wavelength-Selective Switch 有权
    低成本安全潜艇ROADM分支单元使用双向波长选择开关

    公开(公告)号：US20160149663A1

    公开(公告)日：2016-05-26

    申请号：US14938771

    申请日：2015-11-11

    Applicant: NEC Laboratories America, Inc.

    Inventor： Philip Nan Ji ,  Ryuji Aida ,  Ting Wang

    IPC: H04J14/02 ,  H04Q11/00 ,  H04B10/80

    CPC classification number: H04J14/0212 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0216 ,  H04J14/0221

    Abstract: A reconfigurable optical add/drop multiplexer (ROADM) unit includes a first optical circulator coupled to a first terminal; a second optical circulator coupled to a second terminal; a third optical circulator coupled to a third terminal; a fourth optical circulator coupled to a fourth terminal; a first wavelength-selective switch (WSS), coupled to the first, second, and third optical circulators; a second WSS coupled to the first, second, and fourth optical circulators, wherein the first and second WSSes are bidirectional operated; a first 1:2 coupler positioned between the first circulator and the first and second WSSes; a second 1:2 coupler positioned between the second circulator and the first and second WSSes.

    Abstract translation: 可重新配置的光分插复用器（ROADM）单元包括耦合到第一终端的第一光循环器; 耦合到第二端子的第二光循环器; 耦合到第三端子的第三光循环器; 耦合到第四端子的第四光循环器; 耦合到第一，第二和第三光学循环器的第一波长选择开关（WSS）; 耦合到所述第一，第二和第四光学循环器的第二WSS，其中所述第一和第二WSS是双向操作的; 位于第一循环器和第一和第二WSS之间的第一1:2耦合器; 位于第二循环器和第一和第二WSS之间的第二1：2耦合器。

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