公开(公告)号：US12113333B2

公开(公告)日：2024-10-08

申请号：US17272385

申请日：2019-08-29

申请人： KYOTO UNIVERSITY ,  STANLEY ELECTRIC CO., LTD.

发明人： Susumu Noda ,  Yoshinori Tanaka ,  Menaka De Zoysa ,  Kenji Ishizaki ,  Tomoaki Koizumi ,  Kei Emoto

IPC分类号： H01S5/00 ,  H01S5/11 ,  H01S5/183 ,  H01S5/185 ,  H01S5/343 ,  C30B25/18 ,  C30B29/40 ,  H01S5/042 ,  H01S5/20

CPC分类号： H01S5/11 ,  H01S5/183 ,  H01S5/185 ,  H01S5/34333 ,  C30B25/18 ,  C30B29/403 ,  H01S5/04254 ,  H01S5/2009 ,  H01S2304/04

摘要： A surface emitting laser element formed of a group III nitride semiconductor, comprising: a first clad layer of a first conductivity type; a first guide layer of the first conductivity type having a photonic crystal layer formed on the first clad layer including voids disposed having two-dimensional periodicity in a surface parallel to the layer and a first embedding layer formed on the photonic crystal layer; a second embedding layer formed on the first embedding layer by crystal growth; an active layer formed on the second embedding layer; a second guide layer formed on the active layer; and a second clad layer of a second conductivity type formed on the second guide layer, the second conductivity type being a conductivity type opposite to the first conductivity type. The first embedding layer has a surface including pits disposed at surface positions corresponding to the voids.

公开(公告)号：US12095227B2

公开(公告)日：2024-09-17

申请号：US17617116

申请日：2019-06-10

申请人： Nippon Telegraph and Telephone Corporation

发明人： Suguru Yamaoka ,  Ryo Nakao ,  Takaaki Kakitsuka ,  Shinji Matsuo

IPC分类号： H01S5/00 ,  H01S5/02 ,  H01S5/028 ,  H01S5/065 ,  H01S5/10 ,  H01S5/125 ,  H01S5/20 ,  H01S5/22 ,  H01S5/32 ,  H01S5/343 ,  H01S3/063

CPC分类号： H01S5/1028 ,  H01S5/021 ,  H01S5/028 ,  H01S5/0657 ,  H01S5/125 ,  H01S5/2022 ,  H01S5/2219 ,  H01S5/3214 ,  H01S5/34306 ,  H01S3/063

摘要： A device includes a first cladding layer, a waveguide laser, an absorption layer, and a second cladding layer. The absorption layer is constituted by an oversaturation absorption body such as graphene. Also, the absorption layer is provided between the active layer and the distributed Bragg reflection portion. The absorption layer is formed below a core forming an optical waveguide between the active layer and a distributed Bragg reflection portion.

公开(公告)号：US12066632B2

公开(公告)日：2024-08-20

申请号：US18116735

申请日：2023-03-02

申请人： KYOCERA SLD Laser, Inc.

发明人： Paul Rudy ,  James W. Raring ,  Eric Goutain ,  Hua Huang

IPC分类号： G02B27/01 ,  G02B6/00 ,  G02B27/42 ,  H01S5/00 ,  H01S5/02212 ,  H01S5/02325 ,  H01S5/32 ,  H01S5/343 ,  H01S5/40 ,  H01S5/02216 ,  H01S5/10 ,  H01S5/20 ,  H01S5/22 ,  H01S5/30

CPC分类号： G02B27/0172 ,  G02B6/00 ,  G02B27/017 ,  H01S5/320275 ,  H01S5/4093 ,  G02B2027/0178 ,  G02B27/4205 ,  G02B27/4272 ,  H01S5/0014 ,  H01S5/02212 ,  H01S5/02216 ,  H01S5/02325 ,  H01S5/1039 ,  H01S5/2009 ,  H01S5/2201 ,  H01S5/3063 ,  H01S5/32025 ,  H01S5/34333 ,  H01S5/4012

摘要： The present invention is directed to wearable display technologies. More specifically, various embodiments of the present invention provide wearable augmented reality glasses incorporating projection display systems where one or more laser diodes are used as light source for illustrating images with optical delivery to the eye using transparent waveguides. In one set of embodiments, the present invention provides wearable augmented reality glasses incorporating projector systems that utilize transparent waveguides and blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides wearable augmented reality glasses incorporating projection systems having digital lighting processing engines illuminated by blue and/or green laser devices with optical delivery to the eye using transparent waveguides. In one embodiment, the present invention provides wearable augmented reality glasses incorporating a 3D display system with optical delivery to the eye using transparent waveguides. There are other embodiments as well.

公开(公告)号：US12057679B2

公开(公告)日：2024-08-06

申请号：US16844035

申请日：2020-04-09

申请人： SCHOTT AG

发明人： Antoine Carré ,  Alain Danielou ,  Stefanie Hansen ,  Dirk Apitz

IPC分类号： H01S3/06 ,  C03C3/068 ,  C03C4/00 ,  C03C4/08 ,  C03C14/00 ,  H01S3/16 ,  H01S3/17 ,  H01S5/20 ,  H01S5/32 ,  C03C3/07 ,  C03C17/22 ,  C03C17/28 ,  C03C21/00

CPC分类号： H01S5/3215 ,  C03C3/068 ,  C03C4/0071 ,  C03C4/082 ,  C03C14/00 ,  H01S3/0612 ,  H01S3/1636 ,  H01S3/176 ,  H01S5/2022 ,  H01S5/3224 ,  C03C3/07 ,  C03C17/22 ,  C03C17/28 ,  C03C21/00 ,  H01S3/0625 ,  H01S3/1625

摘要： The present disclosure relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The disclosure also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser activity can enter the cladding glass and can be absorbed there. Thus, a laser component with improved efficiency is obtained. The present disclosure also relates to a method for producing the laser component.

公开(公告)号：US20240235151A9

公开(公告)日：2024-07-11

申请号：US18277509

申请日：2022-02-18

申请人： KYOCERA Corporation

发明人： Yoshiaki ITAKURA

IPC分类号： H01S5/0239 ,  H01S5/02253 ,  H01S5/20

CPC分类号： H01S5/0239 ,  H01S5/02253 ,  H01S5/2018

摘要： A light emitter includes a substrate including a first surface, a cladding on the first surface of the substrate, a core inside the cladding, a lid on the cladding, a first light-emitting element inside an element sealing area on the first surface, a second light-emitting element inside the element sealing area, a first light-receiving element inside the element sealing area, and a second light-receiving element inside the element sealing area. A first light-receiving surface of the first light-receiving element faces the lid, and a second light-receiving surface of the second light-receiving element faces the lid.

公开(公告)号：US12034274B2

公开(公告)日：2024-07-09

申请号：US18111686

申请日：2023-02-20

申请人： Sony Corporation

发明人： Tatsushi Hamaguchi ,  Jugo Mitomo ,  Hiroshi Nakajima ,  Masamichi Ito ,  Susumu Sato

IPC分类号： H01S5/183 ,  H01S5/02 ,  H01S5/20 ,  H01S5/22 ,  H01S5/343 ,  H01S5/042

CPC分类号： H01S5/18327 ,  H01S5/0207 ,  H01S5/18341 ,  H01S5/18369 ,  H01S5/2022 ,  H01S5/2219 ,  H01S5/34333 ,  H01S5/04253 ,  H01S5/04256 ,  H01S2301/176 ,  H01S2304/12

摘要： A light emitting element according to the present disclosure includes a first light reflecting layer 41, a laminated structure 20, and a second light reflecting layer 42 laminated to each other. The laminated structure 20 includes a first compound semiconductor layer 21, a light emitting layer 23, and a second compound semiconductor layer 22 laminated to each other from a side of the first light reflecting layer. Light from the laminated structure 20 is emitted to an outside via the first light reflecting layer 41 or the second light reflecting layer 42. The first light reflecting layer 41 has a structure in which at least two types of thin films 41A and 41B are alternately laminated to each other in plural numbers. A film thickness modulating layer 80 is provided between the laminated structure 20 and the first light reflecting layer 41.

公开(公告)号：US20240204483A1

公开(公告)日：2024-06-20

申请号：US18541852

申请日：2023-12-15

申请人： COMMISSARIAT À L’ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

发明人： Badhise BEN BAKIR ,  Olivier LARTIGUE ,  Christophe CONSTANCIAS

IPC分类号： H01S5/20

CPC分类号： H01S5/2027

摘要： A system includes a light source configured to have at least one stationary mode of an electromagnetic field parallel to a plane; a substrate, parallel to the plane and having a high optical index; and an anti-resonant reflector for the at least one stationary mode, the reflector extending over the substrate, the source extending over the reflector.

公开(公告)号：US11973316B2

公开(公告)日：2024-04-30

申请号：US16982434

申请日：2019-02-20

申请人： SONY CORPORATION

发明人： Mikihiro Yokozeki ,  Rintaro Koda ,  Shunsuke Kono ,  Katsunori Yanashima ,  Kota Tokuda

IPC分类号： H01S5/183 ,  H01S5/042 ,  H01S5/20 ,  H01S5/30 ,  H01S5/343 ,  H01S5/10

CPC分类号： H01S5/18311 ,  H01S5/2009 ,  H01S5/3054 ,  H01S5/04256 ,  H01S5/1039 ,  H01S5/34326

摘要： [Object] To provide a vertical cavity surface emitting laser element and an electronic apparatus that have high light emission efficiency. [Solving Means] A vertical cavity surface emitting laser element according to the present technology includes: an active layer; a first cladding layer; and an intermediate layer. The first cladding layer is provided on the active layer. The intermediate layer is provided on the first cladding layer, electrons in the intermediate layer having potential higher than potential of electrons in the first cladding layer, holes in the intermediate layer having potential higher than potential of holes in the first cladding layer.

公开(公告)号：US20240136798A1

公开(公告)日：2024-04-25

申请号：US18399844

申请日：2023-12-29

申请人： Lumentum Operations LLC

发明人： Benjamin KESLER

IPC分类号： H01S5/183 ,  H01S5/20 ,  H01S5/30 ,  H01S5/34 ,  H01S5/42

CPC分类号： H01S5/18397 ,  H01S5/18305 ,  H01S5/18313 ,  H01S5/18388 ,  H01S5/2081 ,  H01S5/3095 ,  H01S5/3416 ,  H01S5/426 ,  H01S5/183 ,  H01S5/18394

摘要： In some implementations, a vertical cavity surface emitting laser (VCSEL) device includes a substrate layer and a first set of epitaxial layers for a bottom-emitting VCSEL disposed on the substrate layer. The first set of epitaxial layers may include a first set of mirrors and at least one first active layer. The VCSEL device may include a second set of epitaxial layers for a top-emitting VCSEL disposed on the first set of epitaxial layers for the bottom-emitting VCSEL. The second set of epitaxial layers may include a second set of mirrors and at least one second active layer. The top-emitting VCSEL and the bottom-emitting VCSEL may be configured to emit light in opposite light emission directions.

公开(公告)号：US11967801B2

公开(公告)日：2024-04-23

申请号：US17048498

申请日：2019-03-28

申请人： NanoPro AB

发明人： Ahmad Abedin ,  Mikael Östling

IPC分类号： H01S5/30 ,  H01S5/20 ,  H01S5/32

CPC分类号： H01S5/3027 ,  H01S5/2086 ,  H01S5/3223

摘要： A structure having first and second layers is disposed on a substrate. The second layer is disposed on the first layer, is compressively strained, and comprises the alloy including germanium and tin. The structure comprises first and second members spaced a distance from each other along a direction, a strip located between the first and second members and extending along an axis intersecting the direction, and arms connecting the first and second members to a first end of the strip. The first and second members, the strip and the arms comprise respective portions of the first and second layers. A portion of the first layer at the strip and arms is removed such that the strip and arms become suspended and the arms remain anchored to the first layer via the first and second members. Tensile strain is induced in the alloy via the arms. The alloy may perform lasing.