公开(公告)号：US12034266B2

公开(公告)日：2024-07-09

申请号：US17164191

申请日：2021-02-01

申请人： Lumentum Operations LLC

发明人： Jian Chen ,  Chang Xiao ,  Xia Hong ,  Fangdong Zhao

IPC分类号： G02B6/27 ,  G02B6/12 ,  G02B6/42 ,  H01S3/063 ,  H01S3/102

CPC分类号： H01S3/063 ,  G02B6/12019 ,  G02B6/4204 ,  H01S3/1022

摘要： In some implementations, an optical isolator core includes a Faraday rotator and a plurality of birefringent crystal plates. The plurality of birefringent crystal plates may include a first birefringent crystal plate to separate input light into light having a first polarization and light having a second polarization, and a second birefringent crystal plate to combine the light having the first polarization and the light having the second polarization in output light that is laterally displaced by the single stage optical isolator. The Faraday rotator may be provided between the first birefringent crystal plate and the second birefringent crystal plate. In some implementations, the plurality of birefringent crystal plates further include a third birefringent crystal plate provided between the Faraday rotator and the second birefringent crystal plate. Additionally, or alternatively, the optical isolator core may further include a half-wave plate arranged between the Faraday rotator and the first birefringent crystal plate.

公开(公告)号：US12025861B2

公开(公告)日：2024-07-02

申请号：US17417296

申请日：2019-12-18

申请人： ROCKLEY PHOTONICS LIMITED

发明人： Guomin Yu ,  Aaron John Zilkie

IPC分类号： G02B6/42 ,  G02B6/12 ,  G02B6/136 ,  G02F1/017

CPC分类号： G02F1/01708 ,  G02B6/12004 ,  G02B6/136 ,  G02B6/4204 ,  G02B2006/12061

摘要： An optoelectronic device. The device comprising: a multi-layered optically active stack, including one or more layers comprising a III-V semiconductor material; an input waveguide, arranged to guide light into the stack; and an output waveguide, arranged to guide light out of the stack. The multi-layered optically active stack is butt or edge coupled to the input waveguide and output waveguide.

公开(公告)号：US20240201455A1

公开(公告)日：2024-06-20

申请号：US18555920

申请日：2021-09-30

申请人： SUMITOMO OSAKA CEMENT CO., LTD.

发明人： Kei Katou ,  Hideki Ichimei

IPC分类号： G02B6/42

CPC分类号： G02B6/4204 ,  G02B6/4244

摘要： Mechanical strength of a lens that optically couples an optical waveguide and an optical fiber provided on a substrate is improved. A lens unit that optically couples an optical waveguide provided on a substrate and an optical fiber has a lens portion and a holding portion that holds the lens portion, and the holding portion has a thick portion, along one side surface that is not a surface through which an optical axis passes, in which a thickness measured in a direction of the optical axis is larger than a thickness of an other portion of the holding portion.

公开(公告)号：US20240151921A1

公开(公告)日：2024-05-09

申请号：US18415580

申请日：2024-01-17

申请人： Avago Technologies International Sales Pte. Limited

发明人： Mayank Mayukh ,  Sam Zhao ,  Sam Karikalan ,  Reza Sharifi ,  Liming Tsau ,  Arun Ramakrishnan ,  Dharmendra Saraswat

IPC分类号： G02B6/43 ,  G02B6/42

CPC分类号： G02B6/43 ,  G02B6/4204 ,  G02B6/4293

摘要： An apparatus includes a substrate that includes one or more routing layers, and an optical module coupled to the substrate. The optical module includes a photonic integrated circuit (PIC) and electronic integrated circuit (EIC), wherein the photonic integrated circuit is at least partially embedded within the substrate. The apparatus further includes a fiber optic coupler coupled to at least one of the substrate or PIC, wherein the PIC is configured to transmit or receive an optical signal via the fiber optic coupler.

公开(公告)号：US11966053B2

公开(公告)日：2024-04-23

申请号：US16714530

申请日：2019-12-13

申请人： Apple Inc.

发明人： Jonathan B. Pfeiffer ,  Adam C. Urness ,  Friso Schlottau ,  Mark R. Ayres ,  Vikrant Bhakta

IPC分类号： G02B27/01 ,  F21V8/00 ,  G02B6/02 ,  G02B6/28 ,  G02B6/42 ,  G02B27/09

CPC分类号： G02B27/0103 ,  G02B6/0016 ,  G02B6/0026 ,  G02B6/02057 ,  G02B6/02076 ,  G02B6/2848 ,  G02B6/4204 ,  G02B6/4214 ,  G02B27/0172 ,  G02B27/0972 ,  G02B2027/0116 ,  G02B2027/0174

摘要： Systems and methods of dispersion compensation in an optical device are disclosed. A holographic optical element may include a set of different holograms in a grating medium. Each hologram in the set may have a corresponding grating vector with a grating frequency and direction. The directions of the grating vectors may vary as a function of the grating frequency. Different holograms in the set may diffract light in a particular direction so that the light emerges from a boundary of the grating medium in a single given direction regardless of wavelength. A prism may be used to couple light into the grating medium. The prism may be formed using materials having dispersion properties that are similar to the dispersion properties of the grating material. The prism may have an input face that receives perpendicular input light. The prism may include multiple portions having different refractive indices.

公开(公告)号：US11960128B2

公开(公告)日：2024-04-16

申请号：US17508760

申请日：2021-10-22

申请人： Apple Inc.

发明人： Alexander Goldis ,  Jeffrey T. Hill ,  Michael J. Bishop

IPC分类号： G02B6/42 ,  G02B6/30 ,  G02B19/00

CPC分类号： G02B6/4204 ,  G02B6/4206 ,  G02B6/4219 ,  G02B6/4244 ,  G02B6/4296 ,  G02B19/0057 ,  G02B6/30 ,  G02B6/4262

摘要： A photonics package may include a substrate, a hanging connector, and a fast-axis collimator (“FAC”). The hanging connector is typically affixed to a side of the substrate other than the side through which a light output is emitted. The hanging connector may be L-shaped in cross-section, having a base section and an extended section projecting from the base section. The base section affixes to the substrate while the extended section affixes to the FAC, so that the FAC extends downward along the emitter surface of the substrate; a vertex of the FAC is coplanar with an emitter outputting the light output.

公开(公告)号：US11947128B2

公开(公告)日：2024-04-02

申请号：US17760599

申请日：2020-09-14

申请人： Arizona Board of Regents on Behalf of the University of Arizona

发明人： Yuzuru Takashima

IPC分类号： G02B27/01 ,  G02B6/42 ,  G02B26/08 ,  G06F3/01 ,  F21V8/00

CPC分类号： G02B27/0179 ,  G02B6/42 ,  G02B6/4204 ,  G02B6/4298 ,  G02B26/0833 ,  G02B27/0172 ,  G06F3/013 ,  G02B6/0023 ,  G02B6/005 ,  G02B2027/0178 ,  G02B2027/0187

摘要： A gaze tracking platform for human-machine interface device, such as a wearable Augmented Reality Near-to-Eye Display. The gaze tracking method, digital illumination assisted analog feedback tracking employs neither auxiliary camera nor digital image processing of human eye image that confronts challenges in gaze tracking speed, power, cost and space. Instead, an analog-digital hybrid method to track the gaze inspired by the groove tracking method that is widely adopted for optical data storage systems. In the method, a digital micromirror device generates angular modulated and infrared illuminating beam. The cornea reflects the infrared light and a segmented photodiode detects the reflection while providing a feedback servo signal to the digital micromirror device controller. The feedback signal is integrated over a time provides the variation gaze. Moreover, infrared and angularly modulated illumination is time-multiplexed with information displayed in visible wavelength. In this manner, single display device is dual used for information display and gaze tracking that benefits especially augmented reality devices in terms of achieving small device form factor.

公开(公告)号：US11947110B2

公开(公告)日：2024-04-02

申请号：US16609716

申请日：2018-09-27

申请人： Akonia Holographics LLC

发明人： Jonathan Pfeiffer ,  Adam Urness ,  Friso Schlottau ,  Mark R. Ayres

IPC分类号： G02B27/01 ,  F21V8/00 ,  G02B5/32 ,  G02B6/02 ,  G02B6/28 ,  G02B6/293 ,  G02B6/42

CPC分类号： G02B27/0103 ,  G02B5/32 ,  G02B6/0016 ,  G02B6/0026 ,  G02B6/02057 ,  G02B6/2848 ,  G02B6/2931 ,  G02B6/4204 ,  G02B2027/0105 ,  G02B2027/0109 ,  G02B2027/0116 ,  G02B2027/0174 ,  G02B2027/0178

摘要： Systems and methods of dispersion compensation in an optical device are disclosed. A holographic optical element may include a set of different holograms in a grating medium (704). Each hologram in the set may have a corresponding grating vector (708, 710, 712) with a grating frequency and direction. The directions of the grating vectors may vary as a function of the grating frequency. Different holograms in the set may diffract light in a particular direction so that the light emerges from a boundary of the grating medium in a single given direction regardless of wavelength. A prism (722) is used to couple light into the grating medium. The prism is formed using materials having dispersion properties that are similar to the dispersion properties of the grating material but not indentical. The prism may have an input face that receives perpendicular input light. The prism may include multiple portions having different refractive indices.

公开(公告)号：US20240103301A1

公开(公告)日：2024-03-28

申请号：US18530471

申请日：2023-12-06

申请人： Apple Inc.

发明人： Victoria C. Chan ,  Christina G. Gambacorta ,  Graham B. Myhre ,  Hyungryul Choi ,  Nan Zhu ,  Phil M. Hobson ,  William W. Sprague ,  Edward A. Valko ,  Qiong Huang ,  Branko Petljanski ,  Paul V. Johnson ,  Brandon E. Clarke ,  Elijah H. Kleeman

IPC分类号： G02C7/08 ,  A61B3/00 ,  A61B3/032 ,  A61B3/036 ,  G02B6/42 ,  G02B7/02 ,  G02B7/09 ,  G02F1/133 ,  G06F1/16

CPC分类号： G02C7/083 ,  A61B3/0008 ,  A61B3/032 ,  A61B3/036 ,  G02B6/4204 ,  G02B7/023 ,  G02B7/09 ,  G02F1/13306 ,  G06F1/163 ,  G02F1/13439

摘要： A head-mounted display may include a display system and an optical system in a housing. The display system may have displays that produce images. Positioners may be used to move the displays relative to the eye positions of a user's eyes. An adjustable optical system may include tunable lenses such as tunable cylindrical liquid crystal lenses. The displays may be viewed through the lenses when the user's eyes are at the eye positions. A sensor may be incorporated into the head-mounted display to measure refractive errors in the user's eyes. The sensor may include waveguides and volume holograms, and a camera for gathering light that has reflected from the retinas of the user's eyes. Viewing comfort may be enhanced by adjusting display positions relative to the eye positions and/or by adjusting lens settings based on the content being presented on the display and/or measured refractive errors.

公开(公告)号：US11892690B1

公开(公告)日：2024-02-06

申请号：US17832140

申请日：2022-06-03

申请人： Acacia Communications, Inc.

发明人： Christopher Doerr

IPC分类号： G02B6/42 ,  G02B6/30 ,  G02B6/36 ,  G02B6/44

CPC分类号： G02B6/423 ,  G02B6/30 ,  G02B6/3616 ,  G02B6/428 ,  G02B6/4272 ,  G02B6/4202 ,  G02B6/4204 ,  G02B6/424 ,  G02B6/4232 ,  G02B6/4245 ,  G02B6/4249 ,  G02B6/4267 ,  G02B6/4269 ,  G02B6/4273 ,  G02B6/4457 ,  H01L2224/16225 ,  H01L2224/73253

摘要： A photonic integrated circuit may be coupled to an optical fiber and packaged. The optical fiber may be supported by a fiber holder during a solder reflow process performed to mount the packaged photonic integrated circuit to a circuit board or other substrate. The optical fiber may be decoupled from the fiber holder, and the fiber holder removed, after completion of the solder reflow process.