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    COMPLEMENTARY OPTICAL PHASE SHIFTING ARRANGEMENT
    1.
    发明申请
    COMPLEMENTARY OPTICAL PHASE SHIFTING ARRANGEMENT 审中-公开

    公开(公告)号：WO2019143571A1

    公开(公告)日：2019-07-25

    申请号：PCT/US2019/013527

    申请日：2019-01-14

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： ANDERSON, Sean P. ,  PATEL, Vipulkumar

    IPC: G02F1/015

    Abstract: An optical phase shifting arrangement and associated optical switching device and method are disclosed. The optical phase shifting arrangement comprises a first optical phase shifter configured to provide a first phase shift to an optical signal, and a second optical phase shifter configured to provide a second phase shift to the optical signal in addition to the first phase shift. During a predefined period, the first optical phase shifter and the second optical phase shifter are driven such that the second phase shift is substantially complementary to the first phase shift.

    THERMO-OPTIC PHASE SHIFTER FOR SEMICONDUCTOR OPTICAL WAVEGUIDE
    2.
    发明申请
    THERMO-OPTIC PHASE SHIFTER FOR SEMICONDUCTOR OPTICAL WAVEGUIDE 审中-公开

    公开(公告)号：WO2018200161A1

    公开(公告)日：2018-11-01

    申请号：PCT/US2018/026485

    申请日：2018-04-06

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： ANDERSON, Sean P. ,  ADAMS, Donald

    IPC: G02F1/01 ,  G02F1/225

    Abstract: Embodiments include a method and associated apparatuses for phaseshifting an optical signal. The method comprises receiving, at a first end of an optical waveguide formed in a semiconductor layer and extending along a first axis, an optical signal having a first phase. The method further comprises transmitting, at a second end of the optical waveguide opposite the first end, a modified optical signal having a second phase different than the first phase. Transmitting a modified optical signal comprises applying a voltage signal between a first contact region and a second contact region formed in the semiconductor layer apart from the first axis. Applying a voltage signal causes an electrical current to be conducted along a dimension of the optical waveguide. The electrical current causes resistive heating of the optical waveguide and a desired phase shift between the first phase and the second phase.

    ELECTRO-OPTIC MODULATOR TERMINATION
    3.
    发明申请
    ELECTRO-OPTIC MODULATOR TERMINATION 审中-公开
    电光调制器终止

    公开(公告)号：WO2016094808A1

    公开(公告)日：2016-06-16

    申请号：PCT/US2015/065266

    申请日：2015-12-11

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： ADAMS, Donald Benjamin ,  ANDERSON, Sean P. ,  WEBSTER, Mark Andrew ,  TRAVERSO, Matthew

    IPC: G02F1/025

    CPC classification number: G02F1/025

    Abstract: Embodiments presented in this disclosure generally relate to an electro-optic device that includes one or more modulator portions and a terminator portion. Each modulator portion is disposed along a propagation path of an optical signal and includes a respective first doped region and one or more coupled first electrical contacts. Each modulator portion operates to modulate an optical signal propagating through the first doped region using first electrical signals applied to the electrical contacts. The terminator portion is disposed along the propagation path and proximate to at least one modulator portions, and operates to mitigate effects of droop on the propagating optical signal.

    Abstract translation: 在本公开中呈现的实施例通常涉及包括一个或多个调制器部分和终止器部分的电光装置。 每个调制器部分沿着光信号的传播路径设置，并且包括相应的第一掺杂区域和一个或多个耦合的第一电触头。 每个调制器部分操作以使用施加到电触点的第一电信号来调制通过第一掺杂区域传播的光信号。 终端器部分沿着传播路径设置并且靠近至少一个调制器部分，并且用于减轻下垂对传播光信号的影响。

    EXTINCTION RATIO IMPROVEMENTS IN SILICON PHOTONICS
    4.
    发明申请
    EXTINCTION RATIO IMPROVEMENTS IN SILICON PHOTONICS 审中-公开

    公开(公告)号：WO2020006140A1

    公开(公告)日：2020-01-02

    申请号：PCT/US2019/039337

    申请日：2019-06-26

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： ANDERSON, Sean P. ,  WEBSTER, Mark A.

    IPC: H04B10/50 ,  G02F1/21 ,  G02F1/225 ,  H04B10/54

    Abstract: Improvements in extinguishing optical signals in silicon photonics may be achieved by supplying a test signal of a known characteristics to a Photonic Element (PE) to extinguish the test signal via a first phase shifter and intensity modulator on a first arm of the PE and a second phase shifter and intensity modulator on a second arm of the PE; sweeping through a plurality of voltages at the first intensity modulator to identify a first voltage that is associated with an extinction ratio at an output of the PE that satisfies an induced loss threshold and a second voltage that is associated with an induced loss in the test signal at the output of the PE that satisfies an extinction ratio threshold; and setting the PE to provide an operational voltage to the first intensity modulator based on the first voltage and the second voltage.

    ELECTRO-OPTIC MODULATOR TERMINATION
    8.
    发明公开
    ELECTRO-OPTIC MODULATOR TERMINATION 审中-公开
    电光调制器终止

    公开(公告)号：EP3230793A1

    公开(公告)日：2017-10-18

    申请号：EP15819987.7

    申请日：2015-12-11

    Applicant: Cisco Technology, Inc.

    Inventor： ADAMS, Donald Benjamin ,  ANDERSON, Sean P. ,  WEBSTER, Mark Andrew ,  TRAVERSO, Matthew

    IPC: G02F1/025

    CPC classification number: G02F1/025

    Abstract: Embodiments presented in this disclosure generally relate to an electro-optic device that includes one or more modulator portions and a terminator portion. Each modulator portion is disposed along a propagation path of an optical signal and includes a respective first doped region and one or more coupled first electrical contacts. Each modulator portion operates to modulate an optical signal propagating through the first doped region using first electrical signals applied to the electrical contacts. The terminator portion is disposed along the propagation path and proximate to at least one modulator portions, and operates to mitigate effects of droop on the propagating optical signal.

    Abstract translation: 本公开中呈现的实施例一般涉及包括一个或多个调制器部分和终端器部分的电光器件。 每个调制器部分沿着光信号的传播路径设置并且包括相应的第一掺杂区域和一个或多个耦合的第一电接触。 每个调制器部分用于使用施加到电触点的第一电信号来调制传播通过第一掺杂区域的光信号。 终端部分沿着传播路径设置并靠近至少一个调制器部分，并且用于减轻下垂对传播光信号的影响。

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