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公开(公告)号：US20220344907A1
公开(公告)日：2022-10-27
申请号：US17344738
申请日：2021-06-10
Applicant: Meta Platforms Technologies, LLC
Inventor： Zhimin SHI , Maik Andre SCHELLER , Gareth VALENTINE , James Ronald BONAR
Abstract: A visible light source includes a substrate, a first reflector and a second reflector configured to reflect infrared light and arranged vertically to form a vertical cavity on the substrate, an active region in the vertical cavity and configured to emit infrared light, a micro-resonator on the substrate and configured to receive the infrared light emitted by the active region and generate visible light through optical parametric oscillation, and an output coupler configured to couple the visible light generated in the micro-resonator out of the micro-resonator.
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Patent Agency Ranking
公开(公告)号：US20220352254A1
公开(公告)日：2022-11-03
申请号：US17866452
申请日：2022-07-15
Applicant: Meta Platforms Technologies, LLC
Inventor： Anurag TYAGI , James Ronald BONAR , Gareth VALENTINE
IPC: H01L27/15
Abstract: LED apparatuses and corresponding manufacturing techniques are described. In some examples, an LED apparatus includes a mesa etched from a layered epitaxial structure. The layered epitaxial structure includes a quantum well layer and a barrier layer adjacent to the quantum well layer. The barrier layer overhangs the quantum well layer as a result of the quantum well layer having been etched to a greater depth compared to the barrier layer. In some examples, the quantum well layer and the barrier layer are etched together to produce an area where the barrier layer overhangs the quantum well layer. Etching of the quantum well layer and the barrier layer can be performed after the layered epitaxial structure has been etched to form the mesa, in order to reduce surface imperfections leftover from the mesa etch. In some examples, one or more regrowth semiconductor layers are formed over etched facets of the mesa.
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3.发明申请公开(公告)号：US20220345220A1
公开(公告)日：2022-10-27
申请号：US17344744
申请日：2021-06-10
Applicant: Meta Platforms Technologies, LLC
Inventor： Zhimin SHI , Maik Andre SCHELLER , Gareth VALENTINE , James Ronald BONAR
IPC: H04B10/116 , H01S5/42 , H01S5/183 , H01S5/11 , H01S5/04
Abstract: A visible light source includes a substrate, a vertical-cavity surface-emitting laser including an active semiconductor region configured to emit infrared light and a first reflector configured to reflect the infrared light emitted by the active semiconductor region, a second reflector configured to reflect the infrared light and form a vertical cavity for the infrared light with the first reflector, and one or more micro-resonators configured to receive the infrared light and generate visible light in one or more colors using the infrared light through optical parametric oscillation. The visible light source also includes one or more output couplers configured to couple the visible light in one or more colors from the one or more micro-resonators into free space or into a photonic integrated circuit.
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公开(公告)号：US20240134115A1
公开(公告)日：2024-04-25
申请号：US18489419
申请日：2023-10-17
Applicant: Meta Platforms Technologies, LLC
Inventor： Mohit KHURANA , John GOWARD , Rahul AGARWAL , James Ronald BONAR
CPC classification number: G02B6/12004 , G02B6/1223 , G02B6/1228 , G02B2006/12147
Abstract: An edge coupler for coupling a light beam (e.g., a laser beam) into a waveguide comprises a first waveguide section characterized by a first thickness and a first constant width, a second waveguide section physically coupled to the first waveguide section and characterized by the first thickness and a gradually decreasing width, and a third waveguide section partially overlapping with the second waveguide section at an overlap region, the third waveguide section characterized by a gradually increasing width and a second thickness different from (e.g., greater than) the first thickness. In some embodiments, a surface (e.g., the top or bottom surface) of the second waveguide section and a surface (e.g., the top or bottom surface) of the third waveguide section are on a same plane.
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公开(公告)号：US20230154424A1
公开(公告)日：2023-05-18
申请号：US17528036
申请日：2021-11-16
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Zhimin SHI , James Ronald BONAR , Fenglin PENG , Ying GENG
CPC classification number: G09G3/3473 , G09G3/36 , G09G3/3406 , G02B6/005 , G09G2300/0426 , G09G2320/0209 , G02F1/133512
Abstract: In various embodiments, an apparatus comprises a composite backplane that modulates light from a light source, where the composite backplane comprises an electronics layer disposed on a substrate, a photonics integrated circuit (IC) layer disposed on the electronics layer that causes light from the light source to propagate in a first direction, and an active light modulation (ALM) interface layer disposed on the photonics IC layer controls an ALM interface layer in order to control the light propagating in the first direction.
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公开(公告)号：US20240230988A9
公开(公告)日：2024-07-11
申请号：US18489419
申请日：2023-10-18
Applicant: Meta Platforms Technologies, LLC
Inventor： Mohit KHURANA , John GOWARD , Rahul AGARWAL , James Ronald BONAR
CPC classification number: G02B6/12004 , G02B6/1223 , G02B6/1228 , G02B2006/12147
Abstract: An edge coupler for coupling a light beam (e.g., a laser beam) into a waveguide comprises a first waveguide section characterized by a first thickness and a first constant width, a second waveguide section physically coupled to the first waveguide section and characterized by the first thickness and a gradually decreasing width, and a third waveguide section partially overlapping with the second waveguide section at an overlap region, the third waveguide section characterized by a gradually increasing width and a second thickness different from (e.g., greater than) the first thickness. In some embodiments, a surface (e.g., the top or bottom surface) of the second waveguide section and a surface (e.g., the top or bottom surface) of the third waveguide section are on a same plane.
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