公开(公告)号：WO2009072709A1

公开(公告)日：2009-06-11

申请号：PCT/KR2008/003103

申请日：2008-06-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  PARK, Jeong-Woo ,  KIM, Gyung-Ock ,  PARK, Mi-Ran ,  YOU, Jong-Bum

Inventor： PARK, Jeong-Woo ,  KIM, Gyung-Ock ,  PARK, Mi-Ran ,  YOU, Jong-Bum

IPC: H01L31/04

CPC classification number: G02F1/218 ,  G02F2001/212 ,  G02F2201/302

Abstract: Provided is a semiconductor integrated circuit. The semiconductor integrated circuit includes a semiconductor pattern disposed on a substrate and including an optical waveguide part and a pair of recessed portions. The optical waveguide part has a thickness ranging from about 0.05 m to about 0.5 μm. The recessed portions are disposed on both sides of the optical waveguide part and have a thinner thickness than the optical waveguide part. A first doped region and a second doped region are disposed in the recessed portions, respectively. The first and second doped regions are doped with a first conductive type dopant and a second conductive type dopant, respectively. An intrinsic region is formed in at least the optical waveguide part to contact the first and second doped regions.

Abstract translation: 提供了一种半导体集成电路。 半导体集成电路包括设置在基板上并且包括光波导部分和一对凹部的半导体图案。 光波导部分的厚度范围为约0.05μm至约0.5μm。 凹部设置在光波导部分的两侧，并且具有比光波导部分更薄的厚度。 第一掺杂区域和第二掺杂区域分别设置在凹部中。 第一和第二掺杂区域分别掺杂有第一导电型掺杂剂和第二导电型掺杂剂。 在至少光波导部分中形成本征区域以接触第一和第二掺杂区域。

公开(公告)号：WO02101450A3

公开(公告)日：2003-08-21

申请号：PCT/US0216400

申请日：2002-05-22

Applicant: HRL LAB LLC ,  PEPPER DAVID M

Inventor： PEPPER DAVID M

IPC: G02F1/01 ,  G02F1/29 ,  G02B26/08 ,  H01Q3/26

CPC classification number: G02F1/011 ,  G02F1/292 ,  G02F2201/20 ,  G02F2201/302

Abstract: A programmable electro-optically controlled optical delay device providing multiple optical outputs. The optical delay device provides multiple output ports where the optical propagation delay increases at each port. An incident optical beam is propagated within electro-optically active material within the device, so that the propagation delay at each output port may be varied according to an applied voltage. In an optical beam steering system, the present invention provides true-time delay for multiple optical beams, allowing the beams radiated by the beam steering system to be time-coincident. The present invention provides for one or two dimensional beam steering.

Abstract translation: 提供多个光输出的可编程电光控制光延迟器件。 光延迟器件提供多个输出端口，其中光传播延迟在每个端口处增加。 入射光束在装置内的电光活性材料内传播，使得每个输出端口处的传播延迟可以根据所施加的电压而变化。 在光束转向系统中，本发明为多个光束提供实时延迟，允许由光束转向系统辐射的光束与时间重合。 本发明提供一维或二维光束转向。

公开(公告)号：WO2002101450A2

公开(公告)日：2002-12-19

申请号：PCT/US2002/016400

申请日：2002-05-22

Applicant: HRL LABORATORIES, LLC ,  PEPPER, David, M.

Inventor： PEPPER, David, M.

IPC: G02F1/29

CPC classification number: G02F1/011 ,  G02F1/292 ,  G02F2201/20 ,  G02F2201/302

Abstract: A programmable electro-optically controlled optical delay device providing multiple optical outputs. The optical delay device provides multiple output ports where the optical propagation delay increases at each port. An incident optical beam is propagated within electro-optically active material within the device, so that the propagation delay at each output port may be varied according to an applied voltage. In an optical beam steering system, the present invention provides true-time delay for multiple optical beams, allowing the beams radiated by the beam steering system to be time-coincident. The present invention provides for one or two dimensional beam steering.

Abstract translation: 提供多个光输出的可编程电光控制光延迟器件。 光延迟器件提供多个输出端口，其中光传播延迟在每个端口处增加。 入射光束在装置内的电光活性材料内传播，使得每个输出端口处的传播延迟可以根据所施加的电压而变化。 在光束转向系统中，本发明为多个光束提供实时延迟，允许由光束转向系统辐射的光束与时间重合。 本发明提供一维或二维光束转向。

公开(公告)号：WO01033268A1

公开(公告)日：2001-05-10

申请号：PCT/US2000/028450

申请日：2000-10-13

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/30 ,  G02B6/42 ,  G02F1/01 ,  G02F1/313 ,  H01S5/026 ,  H01S5/10 ,  H01S5/12 ,  H01S5/40 ,  G02B6/26 ,  G02B6/34

CPC classification number: G02B6/4206 ,  G02B6/12004 ,  G02B6/122 ,  G02B6/1228 ,  G02B6/30 ,  G02B6/42 ,  G02B2006/12102 ,  G02B2006/12119 ,  G02F1/0147 ,  G02F1/3132 ,  G02F2201/302 ,  G02F2203/15 ,  H01S5/026 ,  H01S5/1064 ,  H01S5/12 ,  H01S5/4025 ,  H01S5/4087

Abstract: An asymmetric waveguide pair (1440) with a differential thermal response has an optical coupling frequency that may be thermo-optically tuned. Tuning may also be accomplished by applying an electric field (1445) across a liquid crystal portion (1442) of the waveguide structure. The waveguide pair may include a grating and be used as a frequency selective coupler for an optical resonator. The differential waveguide pair may also be used as a temperature or electric field sensor, or it may be used in a waveguide array to adjust a phase relationship, e.g. in an arrayed waveguide grating.

Abstract translation: 一对不对称的波导（1440）提供有差分热响应，包括热光聚焦光耦合频率。 聚焦还可以通过经由波导结构的液晶部分（1442）施加电场（1445）来实现。 该对波导可以包括衍射光栅并且可以用作光学谐振器的选择性耦合器。 这对差分波导也可以用作电场传感器或温度场，或者它可以用在波导阵列中以调节相位关系，例如在 一个波导衍射光栅。

公开(公告)号：WO99066664A1

公开(公告)日：1999-12-23

申请号：PCT/SE1999/001054

申请日：1999-06-14

IPC: G02B6/12 ,  G02F1/313 ,  H04B10/02 ,  H04Q3/52 ,  H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  G02B6/12007 ,  G02B2006/12107 ,  G02B2006/12147 ,  G02F1/3132 ,  G02F1/3133 ,  G02F2201/302 ,  H04Q2011/0022 ,  H04Q2011/0032 ,  H04Q2011/0039

Abstract: The present invention concerns a multi-wavelength selective switch in the form of a directional coupler structure. The directional coupler structure comprises two waveguides, wherein the waveguides arranged exhibit different effective diffractive index. The waveguides in one section are arranged in the proximity of each other, such that an optical field in the first waveguide can overlap a second waveguide and vice versa and that in said section at least two gratings are arranged for co-directional coupling. Said gratings are arranged isolated from each other. The invention further comprises a method for switching of wavelength channels through the use of said multi-wavelength selective switch.

Abstract translation: 本发明涉及定向耦合器结构形式的多波长选择开关。 定向耦合器结构包括两个波导，其中布置的波导表现出不同的有效衍射指数。 一个部分中的波导被布置在彼此附近，使得第一波导中的光场可以与第二波导重叠，反之亦然，并且在所述部分中布置至少两个光栅用于同向耦合。 所述光栅彼此隔离布置。 本发明还包括通过使用所述多波长选择开关来切换波长信道的方法。

公开(公告)号：WO1993001510A1

公开(公告)日：1993-01-21

申请号：PCT/US1992005569

申请日：1992-07-01

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM ,  MAGNUSSON, Robert ,  WANG, Shu-Shaw

IPC: G02B05/26

CPC classification number: H01S3/106 ,  G02B5/1828 ,  G02B5/203 ,  G02F1/01 ,  G02F1/0338 ,  G02F2201/302 ,  G02F2203/055 ,  H01S3/1055 ,  H01S3/107 ,  H01S5/028 ,  H01S5/125 ,  H01S5/141

Abstract: A guided-mode resonance filter is provided which can be used as an optical filter with very narrow line width and as an efficient optical switch. Diffraction efficiencies and passband frequencies are calculated based on guided-mode resonance properties of periodic dielectric structures in a waveguide geometry. The guided-mode resonance filter preferably includes means for changing various parameters within the grating (10) so as to change passband frequencies in response thereto. Also, the present invention envisions a narrowband tuneable laser having a diffraction grating of the present invention placed within a laser cavity to provide narrowband optical wave output from the narrowband tuneable laser. In another preferred embodiment, the present diffraction grating can be supported by a semiconductor substrate, preferably adjacent to a semiconductor laser for fine-tuning the output of the semiconductor laser. In still another preferred embodiment, the present diffraction grating can be placed between thin-film layers to enhance thin-film performance characteristics.

公开(公告)号：US12001120B1

公开(公告)日：2024-06-04

申请号：US17556323

申请日：2021-12-20

Applicant: HyperLight Corporation

Inventor： Mian Zhang ,  Kevin Luke ,  Prashanta Kharel ,  Christian Reimer ,  Lingyan He

IPC: G02F1/313

CPC classification number: G02F1/313 ,  G02F2201/302 ,  G02F2201/34 ,  G02F2202/101 ,  G02F2202/20

Abstract: An optical device including a plurality of electrodes, an electro-optic component, an optical grating, and a buried back reflector is described. The electro-optic component includes at least one optical material exhibiting an electro-optic effect. The optical grating is optically coupled with the electro-optic component. In some embodiments, the optical grating includes a vertical optical grating coupler. The buried back reflector is optically coupled with the optical grating. The buried back reflector is configured to increase a coupling efficiency of the optical grating to an out-of-plane optical mode and configured to reduce a performance perturbation to the plurality of electrodes. The buried back reflector may include a metal layer having a thickness of at least thirty nanometers and not more than five hundred nanometers.

公开(公告)号：US11953726B2

公开(公告)日：2024-04-09

申请号：US17471687

申请日：2021-09-10

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.

公开(公告)号：US20230194925A1

公开(公告)日：2023-06-22

申请号：US17985063

申请日：2022-11-10

Applicant: Meta Platforms Technologies, LLC

Inventor： Zhimin Shi ,  James Ronald Bonar ,  Wanli Chi

IPC: G02F1/13357 ,  G02B27/01

CPC classification number: G02F1/133605 ,  G02F1/133606 ,  G02B27/0172 ,  G02F2201/05 ,  G02F2201/302 ,  G02F2201/38

Abstract: Embodiments of the present disclosure relate to a high performance backlight device with photonic integrated circuits. The backlight device includes a light source assembly, a multi-mode slab waveguide, and an out-coupling assembly. The light source assembly includes one or more light sources that generate light in accordance with emission instructions, and a de-speckling mechanism that conditions the generated light to mitigate speckle. The multi-mode slab waveguide in-couples the conditioned light and expands the in-coupled conditioned light in two dimensions to form a homogenous area of conditioned light within a region of the multi-mode slab waveguide. The out-coupling assembly out-couples the conditioned light from the region in a direction normal to the two dimensions, wherein a light modulation layer forms an image from the out-coupled conditioned light.

公开(公告)号：US20230185011A1

公开(公告)日：2023-06-15

申请号：US17741404

申请日：2022-05-10

Applicant: Meta Platforms Technologies, LLC

Inventor： Zhujun Shi ,  Keith Patterson ,  Maxwell Parsons ,  Giuseppe Calafiore ,  Yongdan Hu ,  Zhimin Shi

IPC: F21V8/00 ,  G02F1/1343

CPC classification number: G02B6/0036 ,  G02F1/134309 ,  G02B6/0078 ,  G02F1/13439 ,  G02F2201/063 ,  G02F2201/302

Abstract: A self-lit display panel includes a photonic integrated circuit payer including an array of waveguides and an array of out-couplers for out-coupling portions of the illuminating light through pixels of the panel. The self-lit display panel may include a transparent electronic circuitry layer backlit by the photonic integrated circuit layer; the two layers may be on a same substrate or on opposed substrates defining a cell filled with an electro-active material. The configuration allows for chief ray engineering, zonal illuminating, and separate illumination with red, green, and blue illuminating light.