中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

47 records (took 0.02 seconds)

    FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
    21.
    发明申请
    FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS 有权

    公开(公告)号：US20210211201A9

    公开(公告)日：2021-07-08

    申请号：US16578397

    申请日：2019-09-22

    Applicant: Infinera Corporation

    Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven J. Hand ,  David F. Welch

    IPC: H04B10/50 ,  H04B10/54 ,  H04B10/60

    Abstract: A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carrying optical signals to, the hub node. One or more connections may couple each leaf node to the hub node, whereby each connection may include one or more spans or segments of optical fibers, optical amplifiers, optical splitters/combiners, and optical add/drop multiplexer, for example. Optical subcarriers may be transmitted over such connections, each carrying a data stream. The subcarriers may be generated by a combination of a laser and a modulator, such that multiple lasers and modulators are not required, and costs may be reduced. As the bandwidth or capacity requirements of the leaf nodes change, the number of subcarriers, and thus the amount of data provided to each node, may be changed accordingly. Each subcarrier within a dedicated group of subcarriers may carry OAM or control channel information to a corresponding leaf node, and such information may be used by the leaf node to configure the leaf node to have a desired bandwidth or capacity.

    Independently routable digital subcarriers with configurable spacing for optical communication networks
    22.
    发明授权
    Independently routable digital subcarriers with configurable spacing for optical communication networks 有权

    公开(公告)号：US10992389B2

    公开(公告)日：2021-04-27

    申请号：US16270584

    申请日：2019-02-07

    Applicant: Infinera Corporation

    Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven Joseph Hand ,  Han Henry Sun

    IPC: H04B10/516 ,  H04B10/50 ,  H04J14/02 ,  H04B10/61 ,  H04B10/2575

    Abstract: Optical network systems and components are disclosed, including a transmitter comprising a digital signal processor receiving a plurality of independent data streams, and supplying a plurality of digital subcarrier outputs, based on the plurality of independent data streams, and configurable to vary the frequency spacing between two or more of the plurality of digital subcarrier outputs; the transmitter configured to output a modulated optical signal including a plurality of optical subcarriers based on the digital subcarrier outputs wherein based on first ones of the plurality of digital outputs, the first one of the plurality of subcarriers is spectrally spaced from the second one of the plurality subcarriers by a first gap, and based on second ones of the plurality of digital outputs, the first one of the plurality of subcarriers is spectrally spaced from the second one of the plurality of subcarriers by a second gap different than the first.

    CLOCK RECOVERY FOR DIGITAL SUBCARRIERS FOR OPTICAL NETWORKS
    23.
    发明申请
    CLOCK RECOVERY FOR DIGITAL SUBCARRIERS FOR OPTICAL NETWORKS 审中-公开

    公开(公告)号：US20190245643A1

    公开(公告)日：2019-08-08

    申请号：US16270590

    申请日：2019-02-07

    Applicant: Infinera Corporation

    Inventor： Han Henry Sun ,  Kuang-Tsan Wu ,  Steven Joseph Hand ,  Jeffrey T. Rahn

    IPC: H04J14/02 ,  H04B10/50 ,  H04B10/516

    Abstract: Optical network systems and components are disclosed, including a transmitter comprising a digital signal processor that receives data; circuitry that generate a plurality of electrical signals based on the data; a plurality of filters, each of which receiving a corresponding one of the plurality of electrical signals, a plurality of roll-off factors being associated with a respective one of the plurality of filters; a plurality of DACs that receive outputs from the digital signal processor, the outputs being indicative of outputs from the plurality of filters; a laser that supplies light; and a modulator that receives the light and outputs from the DACs, and supplies a plurality of optical subcarriers based on the outputs, such that one of the optical subcarriers has a frequency bandwidth that is wider than remaining ones of the optical subcarriers, said one of the optical subcarriers carrying information for clock recovery.

    OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO
    24.
    发明申请
    OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO 审中-公开

    公开(公告)号：US20190089475A1

    公开(公告)日：2019-03-21

    申请号：US16191974

    申请日：2018-11-15

    Applicant: Infinera Corporation

    Inventor： Fred A. Kish, JR. ,  Michael Reffle ,  Jeffrey T. Rahn ,  John Osenbach ,  Timothy Butrie ,  Xiaofeng Han ,  Mark Missey ,  Mehrdad Ziari ,  Peter W. Evans

    IPC: H04J14/02 ,  H04B10/50 ,  H04B10/079

    Abstract: Consistent with the present disclosure, a photonic integrated circuit (PIC) is provided that has 2 N channels (N being an integer). The PIC is optically coupled to N optical fibers, such that each of N polarization multiplexed optical signals are transmitted over a respective one of the N optical fibers. In another example, each of the N optical fibers supply a respective one of N polarization multiplexed optical signals to the PIC for coherent detection and processing. A multiplexer and demultiplexer may be omitted from the PIC, such that the optical signals are not combined on the PIC. As a result, the transmitted and received optical signals incur less loss and amplified spontaneous emission (ASE) noise. In addition, optical taps may be more readily employed on the PIC to measure outputs of the lasers, such as widely tunable lasers (WTLs), without crossing waveguides.

    FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
    28.
    发明申请
    FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS 有权

    公开(公告)号：US20220376781A1

    公开(公告)日：2022-11-24

    申请号：US17561945

    申请日：2021-12-25

    Applicant: Infinera Corporation

    Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven J. Hand ,  David F. Welch

    IPC: H04B7/26 ,  H04B10/50 ,  H04B10/548 ,  H04B10/61 ,  H04B10/69 ,  H04J14/02 ,  H04L1/00 ,  H04L5/00 ,  H04J14/08 ,  H04J14/00 ,  H04B10/077 ,  H04B10/079 ,  H04B10/25 ,  H04B10/40 ,  H04Q11/00 ,  H04B10/2575 ,  H04J99/00

    Abstract: A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carrying optical signals to, the hub node. One or more connections may couple each leaf node to the hub node, whereby each connection may include one or more spans or segments of optical fibers, optical amplifiers, optical splitters/combiners, and optical add/drop multiplexer, for example. Optical subcarriers may be transmitted over such connections, each carrying a data stream. The subcarriers may be generated by a combination of a laser and a modulator, such that multiple lasers and modulators are not required, and costs may be reduced. As the bandwidth or capacity requirements of the leaf nodes change, the number of subcarriers, and thus the amount of data provided to each node, may be changed accordingly. Each subcarrier within a dedicated group of subcarriers may carry OAM or control channel information to a corresponding leaf node, and such information may be used by the leaf node to configure the leaf node to have a desired bandwidth or capacity.

    FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
    29.
    发明申请
    FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS 有权

    公开(公告)号：US20220376780A1

    公开(公告)日：2022-11-24

    申请号：US17561805

    申请日：2021-12-24

    Applicant: Infinera Corporation

    Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven J. Hand ,  David F. Welch

    IPC: H04B7/26 ,  H04B10/50 ,  H04B10/548 ,  H04B10/61 ,  H04B10/69 ,  H04J14/02 ,  H04L1/00 ,  H04L5/00 ,  H04J14/08 ,  H04J14/00 ,  H04B10/077 ,  H04B10/079 ,  H04B10/25 ,  H04B10/40 ,  H04Q11/00 ,  H04B10/2575 ,  H04J99/00

    Abstract: A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carrying optical signals to, the hub node. One or more connections may couple each leaf node to the hub node, whereby each connection may include one or more spans or segments of optical fibers, optical amplifiers, optical splitters/combiners, and optical add/drop multiplexer, for example. Optical subcarriers may be transmitted over such connections, each carrying a data stream. The subcarriers may be generated by a combination of a laser and a modulator, such that multiple lasers and modulators are not required, and costs may be reduced. As the bandwidth or capacity requirements of the leaf nodes change, the number of subcarriers, and thus the amount of data provided to each node, may be changed accordingly. Each subcarrier within a dedicated group of subcarriers may carry OAM or control channel information to a corresponding leaf node, and such information may be used by the leaf node to configure the leaf node to have a desired bandwidth or capacity.

    Frequency division multiple access optical subcarriers
    30.
    发明授权
    Frequency division multiple access optical subcarriers 有权

    公开(公告)号：US11483066B2

    公开(公告)日：2022-10-25

    申请号：US16578391

    申请日：2019-09-22

    Applicant: Infinera Corporation

    Inventor： Jeffrey T. Rahn ,  Kuang-Tsan Wu ,  Steven J Hand ,  David F. Welch

    IPC: H04B7/26 ,  H04B10/50 ,  H04B10/548 ,  H04B10/61 ,  H04B10/69 ,  H04J14/02 ,  H04L1/00 ,  H04L5/00 ,  H04J14/08 ,  H04J14/00 ,  H04B10/077 ,  H04B10/079 ,  H04B10/25 ,  H04B10/40 ,  H04J99/00 ,  H04Q11/00 ,  H04B10/2575

    Abstract: A network or system in which a hub or primary node may communicate with a plurality of leaf or secondary nodes. The hub node may operate or have a capacity greater than that of the leaf nodes. Accordingly, relatively inexpensive leaf nodes may be deployed to receive data carrying optical signals from, and supply data carrying optical signals to, the hub node. One or more connections may couple each leaf node to the hub node, whereby each connection may include one or more spans or segments of optical fibers, optical amplifiers, optical splitters/combiners, and optical add/drop multiplexer, for example. Optical subcarriers may be transmitted over such connections, each carrying a data stream. The subcarriers may be generated by a combination of a laser and a modulator, such that multiple lasers and modulators are not required, and costs may be reduced. As the bandwidth or capacity requirements of the leaf nodes change, the number of subcarriers, and thus the amount of data provided to each node, may be changed accordingly. Each subcarrier within a dedicated group of subcarriers may carry OAM or control channel information to a corresponding leaf node, and such information may be used by the leaf node to configure the leaf node to have a desired bandwidth or capacity.

Patent Agency Ranking