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1. 发明授权

US11609478B2 Systems and methods for alignment of photonic integrated circuits and printed optical boards 有权
公开(公告)号：US11609478B2
公开(公告)日：2023-03-21
申请号：US17331534
申请日：2021-05-26
申请人： Hirose Electric Co., Ltd.
发明人： Kihong Kim , Jeremy Buan , Tsutomu Matsuo , Tadashi Ohshida
IPC分类号： G02F1/295 , G02B6/42 , G02F1/335
摘要： Example implementations described herein are directed to an interface configured to redirect light between a connector connected to a printed optical board (POB) via an optical waveguide, and a photonic integrated circuit (PIC), the interface involving two-dimensionally distributed waveplates (TDWs) having multiple layers of p-doped and n-doped silicon, the TDWs configured to be driven to change a dielectric constant at a two dimensional location on the TDWs such that the received light is redirected at the two dimensional location.

2. 发明授权

US11579363B2 Planar Luneburg lens system for two-dimensional optical beam steering 有权
公开(公告)号：US11579363B2
公开(公告)日：2023-02-14
申请号：US17496817
申请日：2021-10-08
申请人： Massachusetts Institute of Technology
发明人： Josue Lopez , Samuel Kim , Jamison Sloan , Boris Kharas , Jeffrey Scott Herd , Marin Soljacic , Cheryl Marie Sorace-Agaskar , Suraj Deepak Bramhavar , Steven Glenn Johnson , George Barbastathis
IPC分类号： G02B6/124 , G02B6/12 , G02B6/125 , G02F1/295 , G01S7/481 , G01S7/42
摘要： An integrated optical beam steering device includes a planar Luneburg lens that collimates beams from different inputs in different directions within the lens plane. It also includes a curved (e.g., semi-circular or arced) grating coupler that diffracts the collimated beams out of the lens plane. The beams can be steered in the plane by controlling the direction along which the lens is illuminated and out of the plane by varying the beam wavelength. Unlike other beam steering devices, this device can operate over an extremely wide field of view—up to 180°—without any aberrations off boresight. In other words, the beam quality is uniform in all directions, unlike with aplanatic lenses, thanks to the circular symmetry of the planar Luneburg lens, which may be composed of subwavelength features. The lens is also robust to misalignment and fabrication imperfections and can be made using standard CMOS processes.

3. 发明申请

US20230041107A1 METHOD FOR PRODUCING A MICROOPTOELECTROMECHANICAL COMPONENT, AND CORRESPONDING MICROOPTOELECTROMECHANICAL COMPONENT 有权
公开(公告)号：US20230041107A1
公开(公告)日：2023-02-09
申请号：US17911463
申请日：2021-06-17
申请人： Robert Bosch GmbH
发明人： Rafel Ferré i Tomàs
IPC分类号： G02F1/295
摘要： A method for producing a microoptoelectromechanical component and a corresponding microoptoelectromechanical component. The microoptoelectromechanical component is equipped with a base substrate comprising a cavity which is formed therein and is closed by a covering substrate, an optical waveguide on the covering substrate above the cavity, which optical waveguide comprises a sheathed waveguide core, an electrical contact element in the region of the surrounding covering substrate, wherein a contact pad formed by an electrically conductive polysilicon layer is arranged underneath the electrical contact element, wherein the optical waveguide and the covering substrate located thereunder are divided into a stationary portion and a deflectable portion, which can be docked to the stationary portion by electrically deflecting the corresponding portion of the covering wafer.

4. 发明授权

US11525898B2 Optical device comprising an optical waveguide element having a first and a second grating arranged in a radial direction of a virtual circle 有权
公开(公告)号：US11525898B2
公开(公告)日：2022-12-13
申请号：US16900866
申请日：2020-06-12
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Seiji Nishiwaki
IPC分类号： G01S7/48 , G01S7/481 , G02F1/295 , G02B27/28 , G01S7/4863 , G01S7/4865 , G01S17/08
摘要： An optical device includes: a light source that emits laser light; an optical waveguide element positioned on the optical path of the laser light; a first member positioned on the optical path, and has a bottom surface that faces the optical waveguide element, and a side surface that is rotationally symmetric about the optical path; and a control circuit. The optical waveguide element includes: a first grating that includes a plurality of portions arranged in the radial direction and having mutually different refractive indices, and that causes a portion of the laser light that is incident to be propagated in the radial direction within the optical waveguide element; and a second grating that includes a plurality of portions arranged outside the first grating, arranged in the radial direction, and having mutually different refractive indices, and that causes light to be emitted from the optical waveguide element.

5. 发明申请

US20220334450A1 Free-space Beam Steering Systems, Devices, and Methods 有权
公开(公告)号：US20220334450A1
公开(公告)日：2022-10-20
申请号：US17674826
申请日：2022-02-17
申请人： Jason W. Sickler
发明人： Jason W. Sickler
IPC分类号： G02F1/295
摘要： Devices and systems having a vertical waveguide array are provided having a plurality of vertical waveguides disposed on a support substrate in an array, where each vertical waveguide further includes a reflective region positioned to reflect impinging light toward the support substrate, a core region extending from the reflective region to the support substrate, the core region further comprising, a first contact region and a second contact region electrically isolated from one another disposed between the reflective region and the support substrate, and a light concentrator disposed between the first contact region and the second contact region. The first contact region and the second contact region are operable to create a voltage drop across the light concentrator and the light concentrator has a lower refractive index compared to the refractive indexes of the first contact region and the second contact region. Additionally, a confinement structure surrounds the periphery of each waveguide, where the confinement structure has a lower refractive index compared to the refractive indexes of the first contact region and the second contact region.

6. 发明授权

US11474206B2 Hybrid optical phase array and MEMS beamsteering for chip-scale Lidar system 有权
公开(公告)号：US11474206B2
公开(公告)日：2022-10-18
申请号：US16582568
申请日：2019-09-25
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Timothy J. Talty , Michael Mulqueen , Richard Kremer
IPC分类号： G02F1/313 , G01S7/481 , G02F1/295 , G02F1/11
摘要： A vehicle, Lidar system and method of detecting an object. The Lidar system includes an optical phase array and a mirror. The optical phase array directs a transmitted light beam generated by a laser along a first direction within a first plane. The mirror receives the transmitted light beam from the optical phase array and directs the transmitted light beam along a second direction within a second plane.

7. 发明授权

US11467468B2 Dispersion engineered phased array 有权
公开(公告)号：US11467468B2
公开(公告)日：2022-10-11
申请号：US16885833
申请日：2020-05-28
申请人： The Board of Trustees of the Leland Stanford Junior University
发明人： Jelena Vuckovic , Dries J. F. Vercruysse
IPC分类号： G02F1/29 , G02F1/295 , G02B6/122 , G02B6/14
摘要： A photonic crystal optical phased array device has a dispersion engineered slow light waveguide region; a mode coupler region capable of optically coupling an input waveguide to the dispersion engineered slow light waveguide region; and optical antenna regions integrated within the dispersion engineered slow light waveguide region. The dispersion engineered slow light waveguide region has a substantially linear dispersion relation within a predetermined operational bandwidth of the optical phased array device. The optical antenna regions are formed by an alteration of a periodic structure of the photonic crystal and are capable of radiating light out from the dispersion engineered slow light waveguide region.

8. 发明授权

US11435571B2 Optical scanning device with dual spacing non-waveguide regions and dual intermediate regions adjacent a waveguide 有权
公开(公告)号：US11435571B2
公开(公告)日：2022-09-06
申请号：US16901760
申请日：2020-06-15
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Yasuhisa Inada , Akira Hashiya , Taku Hirasawa
IPC分类号： G02B26/10 , G01S7/481 , G01S17/08 , G02B26/08 , G02F1/295
摘要： An optical scanning device includes: a first mirror; a second mirror opposed to the first mirror; two non-waveguide regions sandwiched between the first mirror and the second mirror; an optical waveguide region disposed between the two non-waveguide regions; and two intermediate regions. The average refractive index of the optical waveguide region is higher than the average refractive index of each intermediate region. The average refractive index of each intermediate region is higher than the average refractive index of each non-waveguide region. The first mirror allows part of light propagating through the optical waveguide region to be emitted as emission light in a third direction. By changing the refractive index and/or thickness of the optical waveguide region, the third direction, which is the emission direction of the emission light, is changed.

9. 发明授权

US11422428B2 Light deflector 有权
公开(公告)号：US11422428B2
公开(公告)日：2022-08-23
申请号：US16972850
申请日：2019-05-23
申请人： Nippon Telegraph and Telephone Corporation
发明人： Takashi Sakamoto , Tadayuki Imai , Yuichi Akage , Masahiro Ueno , Sohan Kawamura
IPC分类号： G02F1/29 , G02F1/295 , G02F1/313
摘要： An optical deflector includes an electro-optical material in a paraelectric phase and having a trap for accumulating charges inside the electro-optical material; an electrode pair formed on facing surfaces of the electro-optical material; a first and second conductor hold units provided so as to hold the electro-optical material and the electrode pair therebetween; a temperature sensor that measures at least one of temperatures of the conductor hold units; and a temperature control unit that controls the temperatures of the conductor hold units, based on the measurement temperature, and the optical deflector sets an optical axis of incident light into the electro-optical material so as to be orthogonal to the electric field direction, applies between the electrode pair an alternating current voltage on which a direct current bias voltage is superimposed, and thereby deflects the incident light, in which the temperatures of the first and second conductor hold units are controlled so as to give the electro-optical material a temperature gradient to make a charge density in the electro-optical material substantially uniform.

10. 发明授权

US11422293B2 Outward coupling suppression in waveguide display 有权
公开(公告)号：US11422293B2
公开(公告)日：2022-08-23
申请号：US17378546
申请日：2021-07-16
申请人： Facebook Technologies, LLC
发明人： Hee Yoon Lee , Ningfeng Huang , Pasi Saarikko , Yu Shi , Giuseppe Calafiore , Nihar Ranjan Mohanty
IPC分类号： G02B6/124 , G02B5/18 , G02F1/295 , F21V8/00 , G02B6/136
摘要： A pupil replication waveguide for a projector display includes a slab of transparent material for propagating display light in the slab via total internal reflection. A diffraction grating is supported by the slab. The diffraction grating includes a plurality of tapered slanted fringes in a substrate for out-coupling the display light from the slab by diffraction into a blazed diffraction order. A greater portion of the display light is out-coupled into the blazed diffraction order, and a smaller portion of the display light is out-coupled into a non-blazed diffraction order. The tapered fringes result in the duty cycle of the diffraction grating varying along the thickness direction of the diffraction grating, to facilitate suppressing the portion of the display light out-coupled into the non-blazed diffraction order.

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