公开(公告)号：US06360048B1

公开(公告)日：2002-03-19

申请号：US09434485

申请日：1999-11-05

Applicant: Koji Yamada

Inventor： Koji Yamada

IPC: G02B610

CPC classification number: G02F1/025 ,  G02B6/423 ,  G02F2201/066 ,  G02F2201/12 ,  H01S5/0224 ,  H01S5/02252 ,  H01S5/02268 ,  H01S5/0425 ,  H01S5/227 ,  H01S5/2275

Abstract: A waveguide optical semiconductor device, a method of fabricating the same and an optical device module. The semiconductor device includes a substrate, a waveguide formed on the substrate, an electrode layer formed on the waveguide, and bumpers formed on the substrate. The bumpers are disposed on both side of the waveguide, and top surfaces of the bumpers are higher than a top surface of the electrode layer. The method of fabrication includes forming semiconductor layers for waveguide on a substrate, forming another semiconductor layer on the semiconductor layers, removing the another semiconductor layer and at least a part of the semiconductor layers selectively so that grooves are formed on both side of a region where the waveguide are expected to be formed, removing the another semiconductor layer at the region, remained portions of the another semiconductor layer form bumpers. The module includes a waveguide optical semiconductor device having bumpers disposed on both side of the waveguide, and a carrier having a mounting region in contact with the top surfaces of the bumpers.

Abstract translation: 波导光半导体器件，其制造方法和光学器件模块。 半导体器件包括衬底，形成在衬底上的波导，形成在波导上的电极层和形成在衬底上的缓冲器。 缓冲器设置在波导的两侧，缓冲器的顶表面高于电极层的顶表面。 制造方法包括在衬底上形成用于波导的半导体层，在半导体层上形成另一个半导体层，选择性地去除另一半导体层和至少一部分半导体层，使得沟槽形成在 期望形成波导，去除该区域处的另一半导体层，保留另一半导体层的部分形成保险杠。 该模块包括具有布置在波导两侧的缓冲器的波导光学半导体器件和具有与缓冲器的顶表面接触的安装区域的载体。

公开(公告)号：US5041824A

公开(公告)日：1991-08-20

申请号：US318751

申请日：1989-03-02

Applicant: Frank J. DiSanto ,  Denis A. Krusos

Inventor： Frank J. DiSanto ,  Denis A. Krusos

IPC: G02F1/167

CPC classification number: G02F1/167 ,  G02F2201/12

Abstract: An electrophoretic display includes a plurality of intersecting grid and cathode lines which are spaced one from the other by means of an insulating material. The grid and cathode lines are associated with an anode electrode which constitutes a planar glass plate having deposited thereon a thin layer of ITO or a similar metal. Interposed between the cathode and grid structure and the anode plate is a mesh electrode which is relatively of the same size as the anode plate. Control voltages are applied to the mesh structure and the anode electrode to further control particle propagation. The conventional anode structure may be entirely replaced with the mesh-like structure to provide an electrophoretic display which can be optimumly illuminated by back lighting.

Abstract translation: 电泳显示器包括通过绝缘材料彼此隔开的多个相交的栅极和阴极线。 栅极和阴极线与构成其上沉积有ITO或类似金属的薄层的平面玻璃板的阳极电极相关联。 阴极和栅格结构之间，阳极板是与阳极板相同尺寸的网状电极。 控制电压施加到网状结构和阳极电极，以进一步控制颗粒传播。 常规的阳极结构可以完全被网状结构替代，以提供可以通过背光最佳地照明的电泳显示。

公开(公告)号：US4160579A

公开(公告)日：1979-07-10

申请号：US896075

申请日：1978-05-03

Applicant: A. Fenner Milton

Inventor： A. Fenner Milton

IPC: G02F1/313 ,  G02B5/14

CPC classification number: G02F1/3132 ,  G02F2201/12

Abstract: A four-part electro-optical switch for switching optical radiation from oneaveguide to another. Parallel waveguides are embedded in the surface of a substrate and provided with separating ends for transmitting radiation through the waveguides. Curved electrodes on the outer side of each waveguide in cooperation with a central electrode and separate voltage sources change the electro-optic properties of the waveguide such that radiation may be switched from one waveguide to the other when the voltage source is in the "on" state.

Abstract translation: 一种用于将光波导从一个波导切换到另一个的四部分电光开关。 平行波导嵌入在衬底的表面中并且设置有用于通过波导传输辐射的分离端。 每个波导的外侧上的弯曲电极与中心电极和单独的电压源协调改变波导的电光特性，使得当电压源处于“导通”时，辐射可以从一个波导切换到另一个波导 州。

公开(公告)号：US20240288744A1

公开(公告)日：2024-08-29

申请号：US18658831

申请日：2024-05-08

Applicant: SMART PHOTONICS HOLDING B.V. ,  NEDERLANDSE ORGANISATIE VOOR WETENSCHAPPELIJK ONDERZOEK (NWO) ,  TECHNISCHE UNIVERSITEIT EINDHOVEN

Inventor： Arezou MEIGHAN

IPC: G02F1/225

CPC classification number: G02F1/2257 ,  G02F2201/12

Abstract: An electro-optical modulator for a photonic integrated circuit. The electro-optical modulator comprising: a substrate; a first waveguide on a first portion of the substrate; a first electrode; a second waveguide on a second portion of the substrate; and a second electrode. A first electrical impedance value between the first electrode and the second electrode is different from a second electrical impedance value between the first electrode and the second electrode. The first electrical impedance value along a first axis perpendicular a light propagation axis of the first waveguide. The second electrical impedance value along a second axis perpendicular the light propagation axis of the first waveguide. The first axis spaced from the second axis along the light propagation axis of the first waveguide.

公开(公告)号：US12051883B2

公开(公告)日：2024-07-30

申请号：US17787976

申请日：2020-12-23

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuyoshi Hirose ,  Yoshitaka Kurosaka ,  Soh Uenoyama

IPC: G02F1/015 ,  G02F1/025 ,  H01S5/00 ,  H01S5/026 ,  H01S5/11 ,  H01S5/185 ,  H01S5/18

CPC classification number: H01S5/0085 ,  G02F1/0151 ,  G02F1/025 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/11 ,  H01S5/185 ,  G02F2201/12 ,  H01S5/18

Abstract: This disclosure relates to a spatial light modulator, etc., the spatial light modulator being capable of dynamically controlling the phase distribution of light, and provided with a structure having a smaller pixel arrangement period and suitable for high-speed operation. The spatial light modulator includes a substrate. The substrate has a front surface, a back surface, and through-holes arranged one-dimensionally or two-dimensionally and penetrating between the front surface and the back surface. The spatial light modulator further includes layered structures each covering the inner walls of the through-holes. Each layered structure includes a first electroconductive layer on the inner wall, a dielectric layer on the first electroconductive layer and having optical transparency, and a second electroconductive layer on the dielectric layer and having optical transparency. At least one of the first and second electroconductive layers is electrically isolated for each group including one or more through-holes.

公开(公告)号：US11911996B2

公开(公告)日：2024-02-27

申请号：US16965531

申请日：2019-01-29

Applicant: President and Fellows of Harvard College ,  Cardinal CG Company

Inventor： Kezi Cheng ,  Aftab Hussain ,  Keith Burrows ,  David Clarke

IPC: B32B17/10 ,  B32B17/06 ,  G02F1/17 ,  B32B25/08 ,  B32B25/10 ,  E06B9/24

CPC classification number: B32B17/10 ,  B32B17/063 ,  B32B25/08 ,  B32B25/10 ,  E06B9/24 ,  G02F1/17 ,  B32B2307/412 ,  E06B2009/2405 ,  E06B2009/2417 ,  E06B2009/2464 ,  E06B2009/2482 ,  G02F2201/12 ,  G02F2202/36 ,  G02F2203/48

Abstract: Methods and apparatus for modulating light using a tunable light modulation device. The tunable light modulation devices comprises an elastomer structure including at least one elastomer layer, a compliant electrode network of conducting fibers arranged on a first surface of the at least one elastomer layer, a patterned electric conductor arranged on a second surface of the at least one elastomer layer opposite the first surface. The patterned electric conductor includes a plurality of individually-addressable sections, and the compliant electrode network is configured to compress the at least one elastomer layer in the presence of an electric field between the compliant electrode network and one or more of the individually-addressable sections of the patterned electric conductor to produce a voltage-dependent roughening of the at least one elastomer layer.

公开(公告)号：US11835837B2

公开(公告)日：2023-12-05

申请号：US16999816

申请日：2020-08-21

Applicant: Exciting Technology, LLC

Inventor： Paul F. McManamon ,  Abtin Ataei

IPC: G02F1/29 ,  G02F1/00

CPC classification number: G02F1/29 ,  G02F1/0018 ,  G02F2201/12 ,  G02F2203/24

Abstract: An example system includes a high-side electrode layer including a number of discrete electrodes and a low-side electrode layer. The system further includes an electro-optic (EO) layer including an EO active material positioned between the high-side electrode layer and the low-side electrode layer, thereby forming a number of active cells of the EO layer. Each of the number of active cells of the EO layer includes a portion of the EO layer that is positioned between one of the discrete electrodes and the low-side electrode layer. The example system further includes an insulator operationally coupled to the active cells of the EO layer, and at least partially positioned between a first one of the active cells and a second one of the active cells.

公开(公告)号：US11686964B2

公开(公告)日：2023-06-27

申请号：US17847428

申请日：2022-06-23

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Daisuke Takama ,  Yoshitoshi Kida

IPC: G06F3/044 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  G09G3/36

CPC classification number: G02F1/13338 ,  G02F1/134363 ,  G06F3/044 ,  G06F3/0412 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0446 ,  G02F1/134372 ,  G02F2201/12 ,  G09G3/3648

Abstract: A common electrode for a display, which is originally provided in a liquid crystal display element, is also used as one (drive electrode) of a pair of electrodes for a touch sensor, and the other (detection-electrode-for-the-sensor) of the pair of electrodes is newly formed. An existing common drive signal as a drive signal for display is used in common for a drive signal for the touch sensor. A capacitance is formed between the common electrode and the detection-electrode-for-the-sensor, and touch detection is performed by utilizing a change of this capacitance caused by a finger touch of a user. Thus, a display device with a touch sensor is also applicable to a mobile device in which electric potential of the user is inconstant in many cases. The newly-provided electrode is only the detection-electrode-for-the-sensor, and it is unnecessary to newly prepare a drive signal for the touch sensor.

公开(公告)号：US20190049756A1

公开(公告)日：2019-02-14

申请号：US15555605

申请日：2016-09-16

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Norikazu MIYAZAKI ,  Toru SUGAMATA

IPC: G02F1/01 ,  G02F1/225

CPC classification number: G02F1/0123 ,  G02F1/225 ,  G02F2001/212 ,  G02F2201/12 ,  G02F2201/58 ,  G02F2202/20

Abstract: To perform a stable bias control by improving detection accuracy of intensity of an dither signal component, which is detected by a photo detector, in an optical modulator including a bias electrode to which a dither signal is applied, and a photo detector that monitors an optical signal propagating through the inside of an optical waveguide in the same substrate. The optical modulator includes: a substrate having a piezoelectric effect (102); an optical waveguide (116a or the like) that is formed on the substrate; a bias electrode (158a or the like) that controls an optical wave that propagates through the optical waveguide; and a photo detector (168a or the like) that is formed on the substrate, and monitors an optical signal that propagates along the optical waveguide. At least one suppressing unit (190 or the like), which suppresses a surface acoustic wave that propagates from the bias electrode to the photo detector, is disposed between a region in which the bias electrode is formed and a portion in which the photo detector is disposed on the substrate.

公开(公告)号：US20180321520A1

公开(公告)日：2018-11-08

申请号：US16032947

申请日：2018-07-11

Applicant: INPHI CORPORATION

Inventor： Abdellatif EL-MOZNINE ,  Bruno TOURETTE ,  Hessam MOHAJERI

IPC: G02F1/025 ,  G02F1/225 ,  G02F1/01 ,  H03G3/20 ,  H04B10/54 ,  G02F1/21

CPC classification number: G02F1/025 ,  G02F1/0121 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/12 ,  H03G3/20 ,  H04B10/54

Abstract: A driver configuration for driving a Mach-Zehnder modulator (MZM) includes a first driver supplied by a first voltage and a second voltage and configured to provide a first two complimentary outputs respectively to a first N-electrode of a first branch of the MZM and a second N-electrode of a second branch of the MZM. Additionally, the driver configuration includes a second driver supplied by a third voltage and a fourth voltage and configured to provide a second two complimentary outputs respectively to a first P-electrode of the first branch and a second P-electrode of the second branch. The driver configuration sets a difference between the third voltage and the fourth voltage equal to a difference between the first voltage and the second voltage to provide a same peak-to-peak differential swing for modulating light wave through each transmission line and output a modulated light with twice of the peak-to-peak differential swing.