Optical PON network using passive DPSK demodulation
    3.
    发明授权
    Optical PON network using passive DPSK demodulation 失效
    光PON网络采用无源DPSK解调

    公开(公告)号:US08478125B2

    公开(公告)日:2013-07-02

    申请号:US12600606

    申请日:2008-04-24

    IPC分类号: H04J14/00 H04J14/02

    摘要: An optical PON network comprises a central office which generates N DPSK modulated optical signals, where N is an integer greater than 1, an optical coupling which connects the N signals to at least one optical fiber, a passive distribution node located remotely from the central office which has at least one input port that is coupled to the fiber and a plurality of output ports, the node being arranged to transmit a first wavelength of the N signals to at least one of its output ports, and at least one optical network unit connected through a respective optical fiber to the first output port of the passive distribution node. The passive distribution node comprises an arrayed waveguide grating which provides a passive optical connection between its input port and the first output port and which for that connection functions as a bandpass filter having a profile and bandwidth selected such that the DPSK optical signal passed to the input node is converted to an intensity modulated signal at the output port.

    摘要翻译: 光PON网络包括产生N个DPSK调制光信号的中心局,其中N是大于1的整数,将N个信号连接到至少一个光纤的光耦合器,远离中心局的被动分配节点 其具有耦合到光纤的至少一个输入端口和多个输出端口,所述节点被布置成将N个信号的第一波长发射到其输出端口中的至少一个,并且至少一个光网络单元连接 通过相应的光纤到被动分配节点的第一输出端口。 无源分布节点包括阵列波导光栅,其在其输入端口和第一输出端口之间提供无源光学连接,并且对于该连接起到带通滤波器的作用,该带通滤波器具有被选择的轮廓和带宽,使得DPSK光信号传递到输入端 节点在输出端口转换为强度调制信号。

    Passive optical network with plural optical line terminals
    4.
    发明授权
    Passive optical network with plural optical line terminals 有权
    具有多个光线路终端的被动光网络

    公开(公告)号:US08554078B2

    公开(公告)日:2013-10-08

    申请号:US12993945

    申请日:2008-08-12

    IPC分类号: H04J14/00

    摘要: An optical network includes a first passive optical network optical line terminal, coupled to a first port of a first optical filter arrangement, and a second passive optical network optical line terminal, coupled to a second port of the first optical filter arrangement. An optical coupler is connected between the second passive optical network line terminal and the second port of the first optical filter arrangement. A passive optical distribution node is coupled to a third port of the first optical filter arrangement.

    摘要翻译: 光网络包括耦合到第一滤光器装置的第一端口的第一无源光网络光线路终端和耦合到第一光学滤波器装置的第二端口的第二无源光网络光线路终端。 光耦合器连接在第二无源光网络线路终端和第一光学滤波器装置的第二端口之间。 无源光分配节点耦合到第一光学滤波器装置的第三端口。

    OPTICAL PON NETWORK USING PASSIVE DPSK DEMODULATION
    5.
    发明申请
    OPTICAL PON NETWORK USING PASSIVE DPSK DEMODULATION 失效
    使用被动DPSK解调的光网络网络

    公开(公告)号:US20100239258A1

    公开(公告)日:2010-09-23

    申请号:US12600606

    申请日:2008-04-24

    IPC分类号: H04J14/02

    摘要: An optical PON network comprises a central office which generates N DPSK modulated optical signals, where N is an integer greater than 1, an optical coupling which connects the N signals to at least one optical fibre, a passive distribution mode located remotely from the central office which has at least one input port that is coupled to the fibre and a plurality of output node being arranged to transmit a first wavelength of the N signals to at least one of its output ports, and at least one optical network unit connected through a respective optical fibre to the first output port of the passive distribution node. The passive distribution node comprises an arrayed waveguide grating which provides a passive optical connection between its input port and the first output port and which for that connection functions as a bandpass filter having a profile and bandwidth selected such that the DPSK optical signal passed to the input node is converted to an intensity modulated signal at the output port.

    摘要翻译: 光PON网络包括产生N个DPSK调制光信号的中心局,其中N是大于1的整数,将N个信号连接到至少一个光纤的光耦合,远离中心局的被动分配模式 其具有耦合到光纤的至少一个输入端口,并且多个输出节点被布置为将N个信号的第一波长发射到其输出端口中的至少一个,以及至少一个光网络单元,其通过相应的 光纤到被动分配节点的第一个输出端口。 无源分布节点包括阵列波导光栅,其在其输入端口和第一输出端口之间提供无源光学连接,并且对于该连接起到带通滤波器的作用,该带通滤波器具有被选择的轮廓和带宽,使得DPSK光信号传递到输入端 节点在输出端口转换为强度调制信号。

    Optical access network and nodes
    6.
    发明授权
    Optical access network and nodes 有权
    光接入网和节点

    公开(公告)号:US08666250B2

    公开(公告)日:2014-03-04

    申请号:US12921370

    申请日:2008-05-27

    IPC分类号: H04J4/00 H04J14/00 H04B10/00

    摘要: An optical network terminal (ONT) for use in an optical access network and comprising: an optical transceiver arranged to communicate with an optical line terminal using a wavelength which is modulated to carry sub-channels; a second transceiver arranged to communicate with a number of subscriber equipment using respective subscriber equipment channels; the ONT arranged to automatically map each subscriber equipment channel to a respective sub-channel of the wavelength without using an address associated with the respective subscriber equipment.

    摘要翻译: 一种用于光接入网络的光网络终端(ONT),包括:光收发机,被配置为使用被调制以承载子信道的波长与光线路终端进行通信; 布置成使用相应的用户设备信道与多个订户设备进行通信的第二收发机; ONT被安排成将每个用户设备信道自动映射到波长的相应子信道,而不使用与各个用户设备相关联的地址。

    IN OR RELATING TO MULTICARRIER COMMUNICATION
    7.
    发明申请
    IN OR RELATING TO MULTICARRIER COMMUNICATION 审中-公开
    在或与多媒体通信相关

    公开(公告)号:US20110158644A1

    公开(公告)日:2011-06-30

    申请号:US12675018

    申请日:2007-08-30

    IPC分类号: H04J14/00

    摘要: The invention relates to improvements in or relating to multicarrier communication and includes a method and a system for communication between an optical line terminal and a plurality of users over a single optical fibre. A portion of a down-stream optical signal is input to an optical circuit, the downstream signal comprising a plurality of subcarriers modulated at a first frequency, the portion of the downstream optical signal is processed at the optical circuit to remove the plurality of subcarriers and to change the first frequency into a second frequency. The processed portion of the downstream signal is then used for communication in the upstream direction.

    摘要翻译: 本发明涉及对多载波通信的改进或涉及多载波通信,并且包括用于通过单个光纤在光线路终端与多个用户之间进行通信的方法和系统。 下行光信号的一部分被输入到光电路,下行信号包括以第一频率调制的多个子载波,下行光信号的部分在光电路处理以去除多个副载波, 以将第一频率改变为第二频率。 然后,将下行信号的处理部分用于上行方向的通信。

    Improved Optical Access Network and Nodes
    8.
    发明申请
    Improved Optical Access Network and Nodes 有权
    改进的光接入网络和节点

    公开(公告)号:US20110076018A1

    公开(公告)日:2011-03-31

    申请号:US12921370

    申请日:2008-05-27

    IPC分类号: H04J14/00

    摘要: An optical network terminal (ONT) for use in an optical access network and comprising: an optical transceiver arranged to communicate with an optical line terminal using a wavelength which is modulated to carry sub-channels; a second transceiver arranged to communicate with a number of subscriber equipment using respective subscriber equipment channels; the ONT arranged to automatically map each subscriber equipment channel to a respective sub-channel of the wavelength without using an address associated with the respective subscriber equipment.

    摘要翻译: 一种用于光接入网络的光网络终端(ONT),包括:光收发机,被配置为使用被调制以承载子信道的波长与光线路终端进行通信; 布置成使用相应的用户设备信道与多个订户设备进行通信的第二收发机; ONT被安排成将每个用户设备信道自动映射到波长的相应子信道,而不使用与各个用户设备相关联的地址。