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    OPTICAL ARBITRARY PULSE PATTERN GENERATOR
    12.
    发明公开
    OPTICAL ARBITRARY PULSE PATTERN GENERATOR 审中-公开

    公开(公告)号：US20230221613A1

    公开(公告)日：2023-07-13

    申请号：US18001952

    申请日：2021-06-16

    Applicant: Teknologian tutkimuskeskus VTT Oy

    Inventor： Jaani NISSILÄ ,  Mikko MERIMAA ,  Kari OJASALO ,  Thomas FORDELL

    IPC: G02F1/225 ,  G02F1/21 ,  G02F1/01

    CPC classification number: G02F1/2252 ,  G02F1/212 ,  G02F1/0136 ,  G02F1/0121 ,  G02F2201/205 ,  G02F2203/54

    Abstract: A generator device for generating an arbitrary optical pulse pattern includes:

    a light source to provide primary laser pulses,
    a distributor to provide a plurality of primary optical pulses by distributing light of the primary laser pulses (LB00k) into a plurality of branches,
    a combiner to form an output signal by combining modulated optical signals from the branches, and
    a controller unit to provide control signals for controlling optical modulators of the branches,
    wherein a first branch comprises a first optical modulator to form a first modulated optical signal from primary optical pulses of the first branch,
    wherein a second branch comprises a second optical modulator to form a second modulated optical signal from primary optical pulses of the second branch, and
    wherein a propagation delay of the second branch is different from a propagation delay of the first branch.

    OPTOELECTRONIC OSCILLATOR WITH TUNABLE FILTER
    13.
    发明申请
    OPTOELECTRONIC OSCILLATOR WITH TUNABLE FILTER 审中-公开

    公开(公告)号：US20180248518A1

    公开(公告)日：2018-08-30

    申请号：US15752797

    申请日：2016-08-19

    Applicant: NANOWAVE TECHNOLOGIES INC.

    Inventor： Charles William Tremlett NICHOLLS

    IPC: H03B17/00 ,  H03H9/64 ,  H03J3/28 ,  G02F1/225

    CPC classification number: H03B17/00 ,  G01S7/292 ,  G01S13/524 ,  G02F1/2252 ,  G02F2/02 ,  G02F2001/212 ,  G02F2201/205 ,  H01P7/06 ,  H01P7/10 ,  H03B2200/0044 ,  H03B2200/0048 ,  H03B2200/009 ,  H03H9/6406 ,  H03J3/28

    Abstract: An optoelectronic oscillator (OEO) is disclosed comprising an electronically tunable filter for transposing narrow pass band characteristics of a surface acoustic wave (SAW) filter to a microwave frequency to provide mode selection in the OEO. An OEO is disclosed comprising a set of optical domain components, a downconverter in communication with an output of the optical domain components, and a set of radio frequency (RF) domain components in communication with an output of the downconverter. The set of RF domain components comprises a tunable filter operating at a filter center frequency and having an output coupled to the set of optical domain components for communicating a mode selection result. The tunable filter including a tuner; and a sub-filter. The sub-filter operating at a fixed center frequency to provide mode selection and adjacent mode suppression with respect to the tunable filter center frequency. The sub-filter center frequency being lower than the tunable filter center frequency, and a ratio of the tunable filter center frequency to a bandwidth of the sub-filter being at least 1000:1.

    CLOSED-TRACK OPTICAL DELAY MODULES, TERAHERTZ SYSTEMS AND PHOTOELECTRIC SYSTEMS
    16.
    发明公开
    CLOSED-TRACK OPTICAL DELAY MODULES, TERAHERTZ SYSTEMS AND PHOTOELECTRIC SYSTEMS 审中-公开

    公开(公告)号：US20240168231A1

    公开(公告)日：2024-05-23

    申请号：US18429992

    申请日：2024-02-01

    Applicant: CAPITAL NORMAL UNIVERSITY

    Inventor： Zhenwei ZHANG ,  Cunlin ZHANG

    IPC: G02B6/28 ,  G02F1/01

    CPC classification number: G02B6/2861 ,  G02F1/0128 ,  G02F2201/205 ,  G02F2203/13

    Abstract: A closed-track optical delay module, a terahertz system, and a photoelectric system are provided. The closed-track optical delay module comprises a first constraint component with a closed-track line structure, a second constraint component with a straight line groove, a third constraint component with a positioning convex, a light conversion device, a housing, and a driving control device. The positioning convex forms a constraint fit relationship with the closed curve groove and straight line groove. One of the first, second, and third constraint components is connected with the driving control device, the other is fixedly disposed, a next one is connected with the light conversion device and moves parallel to the straight line groove. A light input interface is used for an incident light to be irradiated onto the light conversion device. A light output interface is used for a delayed beam to be emitted from the housing.

    Optical buffer device
    19.
    发明申请
    Optical buffer device 失效
    光缓冲器

    公开(公告)号：US20090214218A1

    公开(公告)日：2009-08-27

    申请号：US12289866

    申请日：2008-11-06

    Applicant: Hideaki Okayama

    Inventor： Hideaki Okayama

    IPC: H04J14/08

    CPC classification number: H04Q11/0003 ,  G02F1/0126 ,  G02F2201/205 ,  G02F2202/32 ,  G02F2203/15 ,  G11C13/047

    Abstract: An optical buffer device includes plural optical memory elements that are capable of holding light and an optical delay element. The plural optical memory elements are arranged on an optical path through which signal light and control light propagate in mutually opposite directions. Further, the optical delay element is disposed between the optical memory elements that are adjacent to each other. The optical delay element imparts different delays to the signal light and the control light. According to a preferred exemplary embodiment of this optical buffer device, each of the optical memory elements includes an optical waveguide through which the signal light and the control light propagate and an optical resonator that is disposed in proximity to this optical waveguide, and a coupling between the optical waveguide and the optical resonator is generated or cancelled depending on whether or not the control light is inputted.

    Abstract translation: 光缓冲器件包括能够保持光的光学存储元件和光延迟元件。 多个光存储器元件布置在光路上，信号光和控制光通过该光路相互相反的方向传播。 此外，光学延迟元件设置在彼此相邻的光学存储元件之间。 光延迟元件对信号光和控制光赋予不同的延迟。 根据该光学缓冲器件的优选示例性实施例，每个光学存储器元件包括光波导，信号光和控制光传播通过该光波导，以及设置在该光波导附近的光学谐振器，以及耦合 根据输入的控制光是否产生或消除光波导和光谐振器。

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