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公开(公告)号：US20230275400A1
公开(公告)日：2023-08-31
申请号：US18143110
申请日：2023-05-04
CPC分类号： H01S5/1014 , H01S5/068 , H01S5/22 , H01S5/3434 , H01S5/1064 , H01S5/142 , H01S5/0215 , H01S5/021 , H01S5/0218 , H01S5/1032 , H01S5/2086
摘要： A method for producing a semiconductor optical device includes the steps of bonding a semiconductor chip to an SOI substrate having a waveguide, the semiconductor chip having an optical gain and including a first cladding layer, a core layer, and a second cladding layer that contain III-V group compound semiconductors and are sequentially stacked in this order, forming a covered portion with a first insulating layer on the second cladding layer, etching partway in the thickness direction the second cladding layer exposed from the first insulating film, forming a second insulating film covering from the covered portion to a part of a remaining portion of the second cladding layer, and forming a first tapered portion that is disposed on the waveguide and tapered along the extending direction of the waveguide by etching the core layer and the second cladding layer exposed from the second insulating film.
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公开(公告)号：US20230040798A1
公开(公告)日：2023-02-09
申请号：US17860301
申请日：2022-07-08
发明人： Naoya KONO , Naoki FUJIWARA , Kunimasa SAITOH , Takeshi FUJISAWA , Takanori SATO
IPC分类号： H01S5/0687 , H01S5/10 , H01S5/026
摘要： An optical filter includes a first loop mirror, a second loop mirror, a first waveguide optically coupled to the first loop mirror and the second loop mirror, and a first access waveguide. The first loop mirror includes a first loop waveguide and a first multiplexer/demultiplexer. The second loop mirror includes a second loop waveguide and a second multiplexer/demultiplexer. The first loop waveguide is optically coupled to the first multiplexer/demultiplexer. The second loop waveguide is optically coupled to the second multiplexer/demultiplexer. The first waveguide is optically coupled to the first multiplexer/demultiplexer and the second multiplexer/demultiplexer. The first access waveguide is optically coupled to the first waveguide.
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公开(公告)号：US20210249840A1
公开(公告)日：2021-08-12
申请号：US17154652
申请日：2021-01-21
摘要： A method for producing a semiconductor optical device includes the steps of bonding a semiconductor chip to an SOI substrate having a waveguide, the semiconductor chip having an optical gain and including a first cladding layer, a core layer, and a second cladding layer that contain III-V group compound semiconductors and are sequentially stacked in this order, forming a covered portion with a first insulating layer on the second cladding layer, etching partway in the thickness direction the second cladding layer exposed from the first insulating film, forming a second insulating film covering from the covered portion to a part of a remaining portion of the second cladding layer, and forming a first tapered portion that is disposed on the waveguide and tapered along the extending direction of the waveguide by etching the core layer and the second cladding layer exposed from the second insulating film.
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公开(公告)号：US20230420910A1
公开(公告)日：2023-12-28
申请号：US18209008
申请日：2023-06-13
IPC分类号： H01S5/0236 , C04B37/00
CPC分类号： H01S5/0236 , C04B37/001 , H01S5/0201
摘要： A bonding device includes an irradiator that irradiates a surface of a first component with ultraviolet rays, and a conveyor that conveys the first component, wherein the irradiator irradiates the first component held by the conveyor with the ultraviolet ray, and the conveyor conveys the first component irradiated with the ultraviolet rays to a surface of a second component, and brings the surface of the first component and the surface of the second component into contact with each other to bond the first component and the second component.
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公开(公告)号：US20230089696A1
公开(公告)日：2023-03-23
申请号：US17942612
申请日：2022-09-12
摘要： An optical filter includes a first loop mirror, a second loop mirror, a first waveguide optically coupled to the first loop mirror and the second loop mirror, a second waveguide optically coupled to the first loop mirror and the second loop mirror, a first access waveguide optically coupled to the first waveguide, a second access waveguide optically coupled to the second waveguide, and an output section, wherein the first loop mirror includes a first loop waveguide and a first multiplexer/demultiplexer, the second loop mirror includes a second loop waveguide and a second multiplexer/demultiplexer, the output section includes a third loop waveguide, a third multiplexer/demultiplexer, a third waveguide, and a fourth waveguide, the third loop waveguide optically coupled to the second loop waveguide and the third multiplexer/demultiplexer, the third waveguide and the fourth waveguide optically coupled to the third multiplexer/demultiplexer, and the output section.
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公开(公告)号：US20220158412A1
公开(公告)日：2022-05-19
申请号：US17493393
申请日：2021-10-04
发明人： Takuo HIRATANI , Hideki YAGI , Naoki FUJIWARA
摘要： A semiconductor optical device includes a substrate including a waveguide made of silicon and a semiconductor layer joined to the substrate so as to overlap the waveguide and including a diffraction grating formed of a first semiconductor layer and a second semiconductor layer having different refractive indices. The waveguide includes a bent portion and a plurality of straight portions that are connected to each other by the bent portion and that extend straight. The first semiconductor layer and the second semiconductor layer are each made of a compound semiconductor. The second semiconductor layer is embedded in the first semiconductor layer and includes a plurality of portions arranged in a direction in which the plurality of straight portions extend. The diffraction grating is positioned above the plurality of straight portions.
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公开(公告)号：US20240170917A1
公开(公告)日：2024-05-23
申请号：US18281791
申请日：2022-03-04
发明人： Naoki FUJIWARA , Naoya KONO , Akira FURUYA , Yuki ITO , Susumu NODA , Takuya INOUE , Kenji ISHIZAKI
CPC分类号： H01S5/11 , H01S5/04254 , H01S5/04256 , H01S5/06226 , H01S5/18 , H01S5/2086
摘要： A photonic crystal surface-emitting laser includes a light emitting region from which light is emitted in a direction crossing an in-plane direction, and a current blocking region that is adjacent to the light emitting region in the in-plane direction and in which current is less likely to flow than in the light emitting region. The light emitting region and the current blocking region each include a photonic crystal layer. The photonic crystal layer has a first region and second regions periodically arranged in the first region. A refractive index of each of the second regions is different from that of the first region. The light emitting region includes a first semiconductor layer, an active layer, and a second semiconductor layer. The first semiconductor layer, the active layer, and the second semiconductor layer are sequentially stacked on top of one another in an emission direction of the light.
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公开(公告)号：US20240047944A1
公开(公告)日：2024-02-08
申请号：US18266311
申请日：2021-10-29
发明人： Naoya KONO , Yuki ITO , Naoki FUJIWARA , Susumu NODA , Takuya INOUE , Menaka De ZOYSA , Kenji ISHIZAKI
CPC分类号： H01S5/11 , H01S5/185 , H01S5/04254 , H01S5/04253
摘要： A photonic-crystal surface emitting laser includes a first semiconductor layer, a photonic crystal layer having a refractive index higher than a refractive index of the first semiconductor layer and provided on the first semiconductor layer, and an active layer provided opposite to the first semiconductor layer with respect to the photonic crystal layer. The photonic crystal layer has a first region and a plurality of second regions each having a refractive index different from a refractive index of the first region and periodically disposed in the first region in a plane of the photonic crystal layer. The second regions extend from the photonic crystal layer to the first semiconductor layer.
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公开(公告)号：US20230275399A1
公开(公告)日：2023-08-31
申请号：US18106049
申请日：2023-02-06
发明人： Naoya KONO , Naoki FUJIWARA , Kunimasa SAITOH , Takeshi FUJISAWA , Takanori SATO
CPC分类号： H01S5/101 , H01S5/22 , H01S5/3434 , H01S5/1028 , H01S5/34373 , H01S5/1014
摘要： A semiconductor optical device includes a substrate formed of silicon and having a first optical waveguide and a semiconductor element formed of a III-V compound semiconductor and having a second optical waveguide, the semiconductor element being bonded to an upper surface of the substrate. The first optical waveguide and the second optical waveguide form a directional coupler.
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公开(公告)号：US20210126428A1
公开(公告)日：2021-04-29
申请号：US17078753
申请日：2020-10-23
发明人： Naoki FUJIWARA , Hideki YAGI , Hajime SHOJI , Takuo HIRATANI , Takehiko KIKUCHI , Toshiyuki NITTA
摘要： A semiconductor optical device includes an SOI substrate having a waveguide of silicon, and at least one gain region of a group III-V compound semiconductor having an optical gain bonded to the SOI substrate. The waveguide has a bent portion and multiple linear portions extending linearly and connected to each other through the bent portion. The gain region is disposed on each of the multiple linear portions.
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