公开(公告)号：US11303095B2

公开(公告)日：2022-04-12

申请号：US16791791

申请日：2020-02-14

申请人： NICHIA CORPORATION

发明人： Tadayuki Kitajima ,  Tomokazu Taji

IPC分类号： H01S5/02375 ,  H01S5/00

摘要： A method of manufacturing a light emitting device, the method including: disposing a first semiconductor laser element on a disposition surface of a base member such that a light emission end surface of the first semiconductor laser element is parallel to a first line passing through a pair of alignment marks provided on the base member; and disposing a first light-reflective member on the disposition surface such that a reference line for the first light-reflective member, which serves as an alignment reference in disposing the first light-reflective member, is parallel to a second line that is oblique to the first line at a predetermined angle.

公开(公告)号：US11239631B2

公开(公告)日：2022-02-01

申请号：US16584218

申请日：2019-09-26

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Tymon Barwicz ,  Yves C. Martin ,  Jason S. Orcutt

IPC分类号： H01S5/02375 ,  H01S5/22 ,  H01S5/0234 ,  H01S5/02326 ,  H01S5/042 ,  H01S5/0237

摘要： A method of forming a laser including device is provided that in one embodiment includes providing a laser chip including at least one ridge structure that provides an alignment features. The method further includes bonding a type IV photonics chip to the laser chip, wherein a vertical alignment feature from the type IV photonics chip is inserted in a recess relative to the at least one ridge structure that provides the alignment features of the laser structure.

公开(公告)号：US20230139114A1

公开(公告)日：2023-05-04

申请号：US17816967

申请日：2022-08-02

申请人： JoeScan, Inc.

发明人： Jason Farmer ,  John Joseph Kollmann

IPC分类号： H01S5/02315 ,  H01S5/02375 ,  H01S5/02365

摘要： Adjustable rotation stages include a dual-axis flexure that define first and second axes of rotation A clamp secures a laser diode beam generator or other components to the dual-axis flexure and provides adjustable rotation about a third axis that if different from the first and second axes. Rotation adjustments can be made with screws facing in a common direction.

公开(公告)号：US11329452B2

公开(公告)日：2022-05-10

申请号：US16818801

申请日：2020-03-13

申请人： Marvell Asia Pte Ltd.

发明人： Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Nourhan Eid ,  Kenneth Ling Wong

IPC分类号： H01S3/10 ,  H01S5/0687 ,  H01S5/343 ,  H01S5/40 ,  H01S5/10 ,  H01S5/06 ,  H01S5/028 ,  H01S5/026 ,  H01S5/02 ,  H01S5/14 ,  H01S5/0234 ,  H01S5/02375 ,  H01S5/02326 ,  H01S5/065 ,  H01S5/0625

摘要： A tunable laser device based on silicon photonics includes a substrate configured with a patterned region comprising one or more vertical stoppers, an edge stopper facing a first direction, a first alignment feature structure formed in the patterned region along the first direction, and a bond pad disposed between the vertical stoppers. Additionally, the tunable laser includes an integrated coupler built in the substrate located at the edge stopper and a laser diode chip including a gain region covered by a P-type electrode and a second alignment feature structure formed beyond the P-type electrode. The laser diode chip is flipped to rest against the one or more vertical stoppers with the P-type electrode attached to the bond pad and the gain region coupled to the integrated coupler. Moreover, the tunable laser includes a tuning filter fabricated in the substrate and coupled via a wire waveguide to the integrated coupler.

公开(公告)号：US20220244454A1

公开(公告)日：2022-08-04

申请号：US17719808

申请日：2022-04-13

申请人： Analog Photonics LLC

发明人： Michael Robert Watts ,  Benjamin Roy Moss ,  Ehsan Shah Hosseini ,  Christopher Vincent Poulton ,  Peter Nicholas Russo

IPC分类号： G02B6/12 ,  G02B6/42 ,  G02B7/00 ,  G02B27/00 ,  G02F1/01 ,  H01S5/024 ,  H01S5/02375

摘要： A plurality of waveguide structures are formed in at least one silicon layer of a first member. The first member includes: a first surface of a first silicon dioxide layer that is attached to a second member that consists essentially of an optically transmissive material having a thermal conductivity less than about 50 W/(m·K), and a second surface of material that was deposited over at least some of the plurality of waveguide structures. An array of phase shifters is formed in one or more layers of the first member. An array of temperature controlling elements are in proximity to the array of phase shifters.

公开(公告)号：US20220190553A1

公开(公告)日：2022-06-16

申请号：US17688678

申请日：2022-03-07

申请人： NICHIA CORPORATION

发明人： Tadayuki KITAJIMA ,  Tomokazu TAJI

IPC分类号： H01S5/02375 ,  H01S5/00

摘要： A light emitting device includes one or more electrical components and a base member. The electrical components include a first semiconductor laser element, which has a light emission end surface. The base member has a first surface on which the first semiconductor laser element is disposed. The base member includes a plurality of metal films including a first metal film and a second metal film. The first metal film is electrically connected to at least one of the electrical components, and defines a first alignment mark for aligning the first semiconductor laser element. The second metal film is electrically connected to at least one of the electrical components, and defines a second alignment mark for aligning the first semiconductor laser element. A straight line connecting the first alignment mark and the second alignment mark extends parallel to the light emission end surface of the first semiconductor laser element.

公开(公告)号：US11249189B2

公开(公告)日：2022-02-15

申请号：US16784008

申请日：2020-02-06

申请人： KYOCERA SLD Laser, Inc.

发明人： James W. Raring ,  Melvin McLaurin ,  Paul Rudy ,  Vlad Novotny

IPC分类号： G01S17/86 ,  G01S17/10 ,  G01S17/89 ,  G01S7/481 ,  F21K9/64 ,  H01S5/00 ,  H01S5/024 ,  F21V29/70 ,  G01S7/487 ,  H01S5/02212 ,  H01S5/343 ,  H01S5/40 ,  G01S17/931 ,  H01S5/02251 ,  H01S5/02325 ,  H01S5/028 ,  H01S5/22 ,  H01S5/02 ,  H01S5/02255 ,  H01S5/02345 ,  H01S5/02375

摘要： A distance detecting system for use in mobile machines comprises a gallium and nitrogen containing laser diode disposed within a light of a mobile machine. The gallium and nitrogen containing laser diode is configured to emit a first light with a first peak wavelength. A wavelength conversion member is configured to produce a white light. A first sensing light signal is based on the first peak wavelength. One or more optical elements are configured to direct at least partially the white light to illuminate one or more target objects or areas and to transmit respectively the first sensing light signal for sensing at least one remote point. A detector is configured to detect reflected signals of the first sensing light signal to determine coordinates of the at least one remote point.

公开(公告)号：US20230035065A1

公开(公告)日：2023-02-02

申请号：US17884875

申请日：2022-08-10

申请人： FURUKAWA ELECTRIC CO., LTD.

发明人： Noritaka MATSUBARA ,  Junichi HASEGAWA ,  Etsuji KATAYAMA ,  Tatsuro KUROBE

IPC分类号： H01S5/023 ,  H01S5/02375 ,  G02B6/12

摘要： A semiconductor optical device includes: a base configured to intersect with a first direction; a first protrusion configured to protrude from the base in the first direction, the first protrusion including a planar lightwave circuit including: a core layer; and a cladding layer surrounding the core layer; a second protrusion configured to protrude from the base in the first direction and arranged along the first protrusion in a second direction intersecting with the first direction, a height of the second protrusion from the base in the first direction being lower than a height of the first protrusion; an optical semiconductor element placed on a facet of the second protrusion in the first direction and optically connected to the core layer; and a marker provided on the second protrusion in a manner exposed on the facet, the marker being made of a same material as the core layer.

公开(公告)号：US11387623B2

公开(公告)日：2022-07-12

申请号：US16896448

申请日：2020-06-09

申请人： NICHIA CORPORATION

发明人： Norihiro Dejima ,  Masaki Omori ,  Yuto Oki

IPC分类号： H01S3/10 ,  H01S5/02375 ,  H01S5/14 ,  H01S5/40

摘要： An external cavity laser module is configured to emit a laser beam and includes: a collimation laser light source having a Littrow configuration; a diffraction grating configured to selectively reflect and transmit light of a specific wavelength; a support member supporting the collimation laser light source and the diffraction grating; and a base rotatably supporting the support member to correct an axial direction of the laser beam emitted from the external cavity laser module.

公开(公告)号：US11320585B2

公开(公告)日：2022-05-03

申请号：US16994226

申请日：2020-08-14

申请人： Analog Photonics LLC

发明人： Michael Robert Watts ,  Benjamin Roy Moss ,  Ehsan Shah Hosseini ,  Christopher Vincent Poulton ,  Peter Nicholas Russo

IPC分类号： G02B6/12 ,  G02B6/42 ,  G02B7/00 ,  G02B27/00 ,  G02F1/01 ,  H01S5/024 ,  H01S5/02375 ,  H01L21/56 ,  H01L23/00 ,  H01L31/105 ,  H01L31/18 ,  H01L23/31 ,  H01S5/02326 ,  H01S5/02345

摘要： A plurality of waveguide structures are formed in at least one silicon layer of a first member. The first member includes: a first surface of a first silicon dioxide layer that is attached to a second member that consists essentially of an optically transmissive material having a thermal conductivity less than about 50 W/(m·K), and a second surface of material that was deposited over at least some of the plurality of waveguide structures. An array of phase shifters is formed in one or more layers of the first member. An array of temperature controlling elements are in proximity to the array of phase shifters.