公开(公告)号：US20230185010A1

公开(公告)日：2023-06-15

申请号：US17741393

申请日：2022-05-10

Applicant: Meta Platforms Technolgies 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 ,  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.

公开(公告)号：US20180113303A1

公开(公告)日：2018-04-26

申请号：US15796169

申请日：2017-10-27

Applicant: DIGILENS, INC.

Inventor： Milan Momcilo POPOVICH ,  Jonathan David WALDERN ,  Alastair John GRANT

IPC: G02B27/00 ,  G02F1/313 ,  F21V8/00 ,  G02B6/34 ,  G02B6/42 ,  G02F1/295 ,  G02B27/01 ,  A61B3/113 ,  G02F1/29 ,  G02F1/1334 ,  G02B5/18 ,  H04N5/33 ,  G06K9/00

CPC classification number: G02B27/0093 ,  A61B3/113 ,  G02B5/18 ,  G02B6/0016 ,  G02B6/34 ,  G02B6/4287 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0174 ,  G02B2027/0187 ,  G02F1/13342 ,  G02F1/292 ,  G02F1/2955 ,  G02F1/3132 ,  G02F2001/294 ,  G02F2201/16 ,  G02F2201/30 ,  G02F2201/302 ,  G02F2201/305 ,  G02F2201/307 ,  G02F2203/24 ,  G02F2203/28 ,  G02F2203/62 ,  G06K9/0061 ,  H04N5/33

Abstract: An eye tracker comprises a light source; a detector; and first and second waveguides. The first waveguide comprises an input coupler for coupling source light into a waveguide path and a first grating for coupling light out of the waveguide path onto an eye. The second waveguide comprises a second grating for coupling light reflected from the eye into a waveguide path and an output coupler for coupling light out of the waveguide path onto the detector. The second grating is optically configured for imaging the eye onto the detector.

公开(公告)号：US09519163B2

公开(公告)日：2016-12-13

申请号：US14034950

申请日：2013-09-24

Applicant: Oracle International Corporation

Inventor： Xuezhe Zheng ,  Jin Yao ,  Guoliang Li ,  Ying L. Luo ,  John E. Cunningham ,  Ashok V. Krishnamoorthy

IPC: G02F1/025 ,  G02B6/24 ,  G02F1/015

CPC classification number: G02F1/025 ,  G02B6/124 ,  G02B6/24 ,  G02B6/29395 ,  G02F2001/0154 ,  G02F2201/302

Abstract: A photonic integrated circuit (PIC) is described. This PIC includes a grating coupler for surface-normal coupling that has an alternating pattern of grating teeth and grating trenches, where the grating trenches are filled with an electro-optical material. By applying an electric potential to the grating teeth, the index of refraction of the electro-optical material can be modified.

Abstract translation: 描述了一种光子集成电路（PIC）。 该PIC包括用于表面法线耦合的光栅耦合器，其具有光栅齿和光栅沟槽的交替图案，其中光栅沟槽用电光材料填充。 通过对光栅齿施加电位，可以改变电光材料的折射率。

公开(公告)号：US09397241B2

公开(公告)日：2016-07-19

申请号：US14563780

申请日：2014-12-08

Applicant: University of Ottawa

Inventor： Pierre Simon Joseph Berini ,  Chengkun Chen

IPC: G02B6/34 ,  H01L31/0232 ,  H01L31/18 ,  H01L31/0236 ,  G02B6/26 ,  G02F1/025 ,  G02F1/17 ,  G02B6/122 ,  G02B6/124 ,  G02F1/015

CPC classification number: H01L31/02327 ,  G02B6/1226 ,  G02B6/124 ,  G02B6/26 ,  G02B6/266 ,  G02B6/34 ,  G02F1/025 ,  G02F1/17 ,  G02F2001/0152 ,  G02F2201/302 ,  G02F2202/10 ,  G02F2203/10 ,  H01L31/0232 ,  H01L31/0236 ,  H01L31/02363 ,  H01L31/02366 ,  H01L31/18 ,  Y02E10/50

Abstract: Apparatus and techniques are presented such as can be used for electro-optic modulation and detection or other applications. For example, an optical metal grating is disposed on a thin metal film to couple light from broadside to the metal film as surface plasmon-polariton waves; below the metal film is located a thin insulating layer and a doped semiconductor region forming a metal-insulator-semiconductor structure. The device can be configured to operate as a reflection or transmission modulator, or as a photodetector, for example. Modulating the voltage applied to the metal-insulator-semiconductor structure modulates the carrier concentration in the semiconductor near the insulating layer, which modulates the refractive index of the semiconductor in this region, thus modulating the coupling efficiency to the surface plasmon-polaritons, thus modulating the reflectance and transmittance of the device. Modulated incident light produces a modulated photocurrent under bias which may be detected using electronics.

Abstract translation: 提出了诸如可用于电光调制和检测或其它应用的装置和技术。 例如，在金属薄膜上设置光学金属光栅，将来自宽边的光作为表面等离子体 - 极化子波耦合到金属膜; 在金属膜下方设有形成金属 - 绝缘体 - 半导体结构的薄绝缘层和掺杂半导体区域。 该装置可以被配置为例如作为反射或传输调制器或者作为光电检测器来操作。 对施加到金属 - 绝缘体 - 半导体结构的电压的调制调制半导体附近的半导体附近的载流子浓度，其调节该区域中的半导体的折射率，从而调制与表面等离子体激元的耦合效率，从而调制 器件的反射率和透射率。 调制的入射光在偏置下产生调制光电流，其可以使用电子元件检测。

公开(公告)号：US20090034899A1

公开(公告)日：2009-02-05

申请号：US11888032

申请日：2007-07-30

Applicant: David Fattal ,  Michael M. Sigalas ,  Shih-Yuan Wang

Inventor： David Fattal ,  Michael M. Sigalas ,  Shih-Yuan Wang

IPC: G02F1/295

CPC classification number: G02F1/01708 ,  B82Y20/00 ,  G02F1/295 ,  G02F2201/302

Abstract: An optical modulator and related methods are described. In accordance with one embodiment, the optical modulator comprises a horizontal waveguide grating structure (WGS) receiving an incident radiation beam propagating in a non-horizontal direction. The WGS includes a horizontal waveguiding layer along which a lateral propagation mode is guided, the lateral propagation mode having a vertically extending mode profile. The optical modulator further comprises a multiple quantum well (MQW) layer sufficiently proximal to the horizontal waveguiding layer to be within a vertical extent of the mode profile of the lateral propagation mode. The optical modulator further comprises an electric field source applying a time-varying electric field to the MQW layer. The optical modulator modulates the incident radiation beam according to the time-varying electric field to generate a modulated radiation beam propagating in one of a transmitted direction and a reflected direction.

公开(公告)号：US07209212B2

公开(公告)日：2007-04-24

申请号：US10940664

申请日：2004-09-15

Applicant: Wei-Ching Chuang ,  Ruey-Fang Shyu ,  Hsiao-Ping Liang ,  Kun-Yi Lee

Inventor： Wei-Ching Chuang ,  Ruey-Fang Shyu ,  Hsiao-Ping Liang ,  Kun-Yi Lee

IPC: G02F1/13

CPC classification number: G02F1/1326 ,  G02F2201/302 ,  G02F2203/055

Abstract: The present invention discloses a tunable optical integrated element using liquid crystal as an active layer, which is applied to filters, couplers or optical add/drop multiplexer. The present invention includes a layer of liquid crystal as an active layer, a first waveguide with grating and a second waveguide, an isolation layer, a pair of electrodes. By applying the external voltage to control the direction of the liquid crystal, the refractive index of the waveguide changes in accordance with the modulation of the electric field. Thus invention has the features of simple structure, easy assembling, lower cost and integrating ability.

Abstract translation: 本发明公开了一种使用液晶作为有源层的可调谐光学集成元件，其被应用于滤波器，耦合器或光分插复用器。 本发明包括作为有源层的液晶层，具有光栅的第一波导和第二波导，隔离层，一对电极。 通过施加外部电压来控制液晶的方向，波导的折射率根据电场的调制而变化。 因此本发明具有结构简单，组装方便，成本低，集成能力强的特点。

公开(公告)号：US06956984B2

公开(公告)日：2005-10-18

申请号：US10337348

申请日：2003-01-07

Applicant: Pál Ormos ,  András Dér ,  Elmar Klaus Wolff ,  Jeremy J. Ramsden

Inventor： Pál Ormos ,  András Dér ,  Elmar Klaus Wolff ,  Jeremy J. Ramsden

IPC: G02B6/12 ,  G02B6/34 ,  G02F1/01 ,  G02F1/31 ,  G02F1/35 ,  G02F3/00 ,  G02B6/26

CPC classification number: G02F1/0126 ,  G02F1/011 ,  G02F1/0118 ,  G02F1/31 ,  G02F3/00 ,  G02F2201/302 ,  G02F2202/02 ,  G02F2202/13 ,  G02F2202/14

Abstract: A fully light-controllable integrated optical switch applicable in a slab geometry configuration includes a waveguide and an ad-medium in contact with the waveguide. The the ad-medium comprises a photochromic protein as a material of non-linear optical property, wherein switching of a light propagating in the waveguide is effected by a change of an optical property of the ad-medium caused by a light-induced transition of the photochromic protein from one defined molecular state to another.

Abstract translation: 适用于平板几何结构的完全可光控制的集成光学开关包括与波导接触的波导和介质。 该培养基包含光致变色蛋白作为非线性光学性质的材料，其中在波导中传播的光的切换通过由光诱导的转变引起的介质的光学特性的变化来实现 光致变色蛋白从一个定义的分子状态到另一个。

公开(公告)号：US06810182B2

公开(公告)日：2004-10-26

申请号：US10276944

申请日：2002-11-18

Applicant: Norbert Grote ,  Georges Przyrembel ,  Huithai Yao

Inventor： Norbert Grote ,  Georges Przyrembel ,  Huithai Yao

IPC: G02B642

CPC classification number: G02F1/3132 ,  G02F1/0147 ,  G02F1/065 ,  G02F2201/302 ,  G02F2202/022

Abstract: A tunealble optical grid-assisted add/drop filter for codirectional operational mode consisting of at least two waveguides composed of two different classes of material of different optical parameters. The thermal refractive index coefficient dn/dT, the electro-optic coefficient dn/dE or the dispersion dn/d&lgr; of the two materials differ from each other such that when the temperature, the electric field or the wavelength of or in the two waveguides is change, the result will be effects of different powers.

公开(公告)号：US06600844B2

公开(公告)日：2003-07-29

申请号：US09896953

申请日：2001-06-29

Applicant: Stanislav I. Ionov

Inventor： Stanislav I. Ionov

IPC: G02F1295

CPC classification number: G02F1/011 ,  G02F2201/066 ,  G02F2201/20 ,  G02F2201/302 ,  G02F2201/307 ,  G02F2202/20

Abstract: An optical delay generator comprises a first waveguide made from electro-optically active material resonantly coupled to a second non-electro-optically active waveguide. The first waveguide contains a chirped distributed Bragg reflector structure which reflects optical signals at a specific wavelength at a specific reflection point within the structure. An electric field applied to the first waveguide changes the refractive index of the electro-optically active material and thus shifts the reflection point. Optical signals reflecting from the reflection point are resonantly coupled into the second waveguide, and are thus not affected by the electric field applied to the first waveguide. The controllable optical delay applied to the optical signals results from control over the reflection point and the round-trip travel time for an optical signal forward propagating in the first waveguide, being reflected at the reflection point, and backward propagating in the second waveguide.

Abstract translation: 光学延迟发生器包括由电光活性材料制成的第一波导，其共振耦合到第二非电光活性波导。 第一波导包含啁啾分布布拉格反射器结构，其在结构内的特定反射点反射特定波长的光信号。 施加到第一波导的电场改变电光活性材料的折射率，从而使反射点移动。 从反射点反射的光信号共振地耦合到第二波导中，因此不受施加到第一波导的电场的影响。 对光信号施加的可控光学延迟来自对在第一波导中向前传播的光信号的反射点和往返行进时间的控制，在反射点处被反射，并且在第二波导中反向传播。

公开(公告)号：US20020186919A1

公开(公告)日：2002-12-12

申请号：US09877976

申请日：2001-06-08

Applicant: HRL Laboratories, LLC

Inventor： David M. Pepper

IPC: G02B006/26 ,  G02F001/153

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。