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    FAULT LOCALIZATION AND FIBER SECURITY IN OPTICAL TRANSPONDERS
    2.
    发明申请
    FAULT LOCALIZATION AND FIBER SECURITY IN OPTICAL TRANSPONDERS 审中-公开

    公开(公告)号：US20170272152A1

    公开(公告)日：2017-09-21

    申请号：US15613038

    申请日：2017-06-02

    Applicant: Acacia Communications, Inc.

    Inventor： Eric Swanson ,  Graeme Pendock

    IPC: H04B10/07

    Abstract: Designs, methods, and applications for fault localization and fiber security in optical transponders is described. In one embodiment a two-way time transfer protocol or other suitable method for synchronizing clocks between distant transponders is used. The clock synchronized transponders have digital signal processing to continually detect high precision time-histories of physical layer attributes in the transmission between the two transponders. Physical layer attributes can include: state-of-polarization changes, changes in polarization-mode-dispersion, change in propagation delay, changes or loss-of-light, changes in OSNR, changes in BER between the two nodes. By recording these physical layer changes and time-stamping them information on the magnitude and estimated location of the changes can be inferred by from the time records. In one aspect the method may be used in a distributed optical sensor for monitoring trespassing events that are a risk to fiber security of an optical transmission link.

    Integrated optical coherence tomography systems and methods
    3.
    发明授权
    Integrated optical coherence tomography systems and methods 有权
    综合光学相干断层扫描系统和方法

    公开(公告)号：US09464883B2

    公开(公告)日：2016-10-11

    申请号：US14201827

    申请日：2014-03-08

    Applicant: ACACIA COMMUNICATIONS INC.

    Inventor： Eric Swanson ,  Christopher Doerr

    IPC: G01B9/02

    CPC classification number: G01B9/02051 ,  G01B9/02004 ,  G01B9/02069 ,  G01B9/02091

    Abstract: Disclosed herein are optical integration technologies, designs, systems and methods directed toward Optical Coherence Tomography (OCT) and other interferometric optical sensor, ranging, and imaging systems wherein such systems, methods and structures employ tunable optical sources, coherent detection and other structures on a single or multichip monolithic integration. In contrast to contemporary, prior-art OCT systems and structures that employ simple, miniature optical bench technology using small optical components positioned on a substrate, systems and methods according to the present disclosure employ one or more photonic integrated circuits (PICs), use swept-source techniques, and employ a widely tunable optical source(s).

    Abstract translation: 本文公开的是针对光学相干层析成像（OCT）和其他干涉光学传感器，范围和其中这样的系统，方法和结构采用可调谐光源，相干检测和其他结构的光学集成技术，设计，系统和方法 单芯片或多芯片单片集成。 与采用使用位于衬底上的小型光学组件的简单的微型光学平台技术的现代的现有技术的OCT系统和结构不同，根据本公开的系统和方法采用一个或多个光子集成电路（PIC），使用扫描 源技术，并采用广泛可调谐的光源。

    Fault localization and fiber security in optical transponders
    5.
    发明授权
    Fault localization and fiber security in optical transponders 有权

    公开(公告)号：US11171728B2

    公开(公告)日：2021-11-09

    申请号：US15613038

    申请日：2017-06-02

    Applicant: Acacia Communications, Inc.

    Inventor： Eric Swanson ,  Graeme Pendock

    IPC: H04B10/00 ,  H04B10/85 ,  H04L12/26 ,  H04L12/24

    Abstract: Designs, methods, and applications for fault localization and fiber security in optical transponders is described. In one embodiment a two-way time transfer protocol or other suitable method for synchronizing clocks between distant transponders is used. The clock synchronized transponders have digital signal processing to continually detect high precision time-histories of physical layer attributes in the transmission between the two transponders. Physical layer attributes can include: state-of-polarization changes, changes in polarization-mode-dispersion, change in propagation delay, changes or loss-of-light, changes in OSNR, changes in BER between the two nodes. By recording these physical layer changes and time-stamping them information on the magnitude and estimated location of the changes can be inferred by from the time records. In one aspect the method may be used in a distributed optical sensor for monitoring trespassing events that are a risk to fiber security of an optical transmission link.

    Fault localization and fiber security in optical transponders
    9.
    发明授权
    Fault localization and fiber security in optical transponders 有权

    公开(公告)号：US10425154B2

    公开(公告)日：2019-09-24

    申请号：US15614242

    申请日：2017-06-05

    Applicant: Acacia Communications, Inc.

    Inventor： Eric Swanson ,  Graeme Pendock

    IPC: H04B10/07 ,  H04L12/26 ,  H04L12/24

    Abstract: Designs, methods, and applications for fault localization and fiber security in optical transponders is described. In one embodiment a two-way time transfer protocol or other suitable method for synchronizing clocks between distant transponders is used. The clock synchronized transponders have digital signal processing to continually detect high precision time-histories of physical layer attributes in the transmission between the two transponders. Physical layer attributes can include: state-of-polarization changes, changes in polarization-mode-dispersion, change in propagation delay, changes or loss-of-light, changes in OSNR, changes in BER between the two nodes. By recording these physical layer changes and time-stamping them information on the magnitude and estimated location of the changes can be inferred by from the time records. In one aspect the method may be used in a distributed optical sensor for monitoring trespassing events that are a risk to fiber security of an optical transmission link.

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