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    Electro-optical waveguide element with reduced DC drift phenomena
    61.
    发明授权
    Electro-optical waveguide element with reduced DC drift phenomena 失效
    具有降低的DC漂移现象的电光波导元件

    公开(公告)号：US5878175A

    公开(公告)日：1999-03-02

    申请号：US701055

    申请日：1996-08-21

    Applicant: Shinichiro Sonoda ,  Masami Hatori

    Inventor： Shinichiro Sonoda ,  Masami Hatori

    IPC: G02F1/035 ,  G02F1/295

    CPC classification number: G02F1/035 ,  G02F2201/07 ,  G02F2201/302 ,  G02F2203/21

    Abstract: An electro-optical waveguide element with reduced DC drift phenomena is presented. The waveguide element is made up of an optical waveguide formed on a substrate possessing electro-optical effects, at least a pair of electrodes closely attached to the optical waveguide with a buffer layer sandwiched between the substrate and the electrodes, and a driver circuit for applying a voltage between the electrodes. The buffer layer is made of a material having a dielectric constant in the range of 20-1000. The buffer layer is more preferably made of a material having a dielectric constant in the range of 20-200. The material of the buffer layer is selected from the group consisting of HfO.sub.2, TiO.sub.2, SrTiO.sub.3, BaTiO.sub.3, LiNbO.sub.3, LiTaO.sub.3, Pb(Zr, Ti)O.sub.3, and (Pb, La)(Zr, Ti)O.sub.3.

    Abstract translation: 提出了具有降低的DC漂移现象的电光波导元件。 波导元件由形成在具有电光效应的基板上的光波导构成，至少一对电极与光波导紧密连接，缓冲层夹在基板和电极之间，驱动电路用于施加 电极之间的电压。 缓冲层由介电常数在20-1000范围内的材料制成。 缓冲层更优选由介电常数在20-200范围内的材料制成。 缓冲层的材料选自HfO 2，TiO 2，SrTiO 3，BaTiO 3，LiNbO 3，LiTaO 3，Pb（Zr，Ti）O 3和（Pb，La）（Zr，Ti）O 3。

    Optical beam scanner
    63.
    发明授权
    Optical beam scanner 失效
    光束扫描仪

    公开(公告)号：US5303316A

    公开(公告)日：1994-04-12

    申请号：US455053

    申请日：1989-12-22

    Applicant: Jacob M. Hammer

    Inventor： Jacob M. Hammer

    IPC: G02B6/34 ,  G02F1/295 ,  H01S5/062 ,  H01S5/187

    CPC classification number: G02B6/34 ,  G02F1/2955 ,  G02F2201/302 ,  H01S5/06243 ,  H01S5/187

    Abstract: An optical device having a substrate with a waveguide layer on a surface thereof and a grating in the waveguide. The grating has a period such as to deflect light passing along the waveguide out of the optical device. The angle at which the light is emitted from the waveguide can be varied by varying the index of refraction of the material of the waveguide under the grating. This can be achieved by applying a voltage across the waveguide.

    Abstract translation: 一种具有在其表面上具有波导层的基板和波导中的光栅的光学装置。 光栅具有使沿着波导通过的光偏离光学器件的周期。 可以通过改变光栅下的波导材料的折射率来改变光从波导发射的角度。 这可以通过在波导上施加电压来实现。

    Optical crossbar switching network
    66.
    发明授权
    Optical crossbar switching network 失效
    光交叉开关网络

    公开(公告)号：US4013000A

    公开(公告)日：1977-03-22

    申请号：US633719

    申请日：1975-11-20

    Applicant: Herwig Werner Kogelnik

    Inventor： Herwig Werner Kogelnik

    IPC: G02B6/28 ,  G02B6/34 ,  G02B6/35 ,  G02F1/03 ,  G02F1/09 ,  G02F1/11 ,  G02F1/313 ,  H04Q3/52 ,  G02B5/14

    CPC classification number: G02B6/3536 ,  G02B6/2821 ,  G02B6/29334 ,  G02F1/3137 ,  H04Q3/526 ,  G02B6/3534 ,  G02B6/3546 ,  G02B6/3578 ,  G02B6/3596 ,  G02F1/03 ,  G02F1/09 ,  G02F1/11 ,  G02F2201/302

    Abstract: An optical switching network employing a plurality of optical switching crosspoints is implemented by providing the first and second pluralities of strip waveguide channels passing one over the other in parallel planes separated by an intervening medium. The implementation is further characterized by including at each of the proposed switching crosspoints, that is, at the regions of closest approach of the different strip guides, beam-guide couplers such as grating-type couplers to couple the modulated optical energy from one of the first plurality of channels to one of the second plurality of channels through an intervening, supporting medium. There are provided two couplers at each optical crosspoint; and they are controllable between coupling and noncoupling conditions with respect to their respective waveguide channels.

    Abstract translation: 采用多个光交换交叉点的光交换网络通过提供第一和第二多条带状波导通道，通过在由介入介质分隔开的平行平面中彼此通过。 该实现的特征还在于，在每个所提出的切换交叉点处，即在不同条带引导件的最接近的区域处，包括诸如光栅型耦合器之类的光束耦合器，用于将调制光能量从 通过中间的支持介质将第一多个通道传送到第二多个通道之一。 在每个光学交叉点提供两个耦合器; 并且它们在耦合和非耦合条件之间相对于它们各自的波导通道是可控的。

    OPTICAL DEVICE
    67.
    发明公开
    OPTICAL DEVICE 审中-公开

    公开(公告)号：US20240210622A1

    公开(公告)日：2024-06-27

    申请号：US18598819

    申请日：2024-03-07

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Kazuki NAKAMURA ,  Yasuhisa INADA

    IPC: G02B6/124 ,  G01S7/481 ,  G01S17/89 ,  G02B6/12 ,  G02F1/295

    CPC classification number: G02B6/124 ,  G01S7/4817 ,  G01S17/89 ,  G02B6/12033 ,  G02F1/295 ,  G02B2006/12104 ,  G02F2201/302

    Abstract: An optical device includes a first waveguide extending in a first direction and a second waveguide connected to the first waveguide. The second waveguide includes a first mirror, a second mirror, and an optical waveguide layer. At least either the first waveguide or the second waveguide has one or more gratings in a part of a connection region in which the first mirror, the second mirror, and the first waveguide overlap one another when seen from an angle parallel with a direction perpendicular to a first reflecting surface of the first mirror. The one or more gratings is at a distance that is longer than at least either a thickness of the first mirror or a thickness of the second mirror in the first direction from an end of the first mirror or the second mirror that is in the connection region.

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