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公开(公告)号：US20240176073A1
公开(公告)日：2024-05-30
申请号：US18431872
申请日：2024-02-02
CPC分类号： G02B6/1228 , G02B6/1223 , G02B6/132 , G02B6/136
摘要： A semiconductor structure for a photonic integrated circuit, comprising a substrate, and a waveguide. The substrate comprises a planar surface. The waveguide comprises a first waveguide portion and a second waveguide portion. The first waveguide portion tapered for a first spot size conversion of light, and in contact with a first portion of the planar surface. The second waveguide portion in contact with a second portion of the planar surface next to the first portion of the planar surface. A size of the first waveguide portion in a first direction perpendicular to a light propagation direction is less than a size of the second waveguide portion in the first direction for a second spot size conversion of the light.
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公开(公告)号：US20240345321A1
公开(公告)日：2024-10-17
申请号：US18754740
申请日：2024-06-26
CPC分类号： G02B6/126 , G02B6/136 , G02B2006/12078
摘要： A polarisation converter for a photonic integrated circuit. The polarisation converter comprises a first semiconductor layer, a second semiconductor layer and a third semiconductor layer. The second semiconductor layer comprises, when viewed in a cross-sectional plane perpendicular a light propagation axis, a first portion thicker than a second portion. The second semiconductor layer is between, and in contact with, the first semiconductor layer and the third semiconductor layer.
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公开(公告)号：US20240353618A1
公开(公告)日：2024-10-24
申请号：US18412058
申请日：2024-01-12
摘要： A light polarisation converter for a photonic integrated circuit, comprising a first layer. The first layer comprises a first surface and a second surface. The second surface is offset from the first surface along a first axis and a second axis. The first axis is perpendicular to the first surface. The second axis is parallel to the first surface. The light polarisation converter comprises a second layer and a waveguide. The waveguide is between, and in contact with, the first layer and the second layer. The waveguide comprises a first waveguide portion in contact with the first surface, and a second waveguide portion in contact with the second surface. The second waveguide portion is offset from the first waveguide portion. The first waveguide portion has a first thickness different to a second thickness of the first waveguide portion. The first thickness and the second thickness are perpendicular the first surface.
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公开(公告)号：US20240272357A1
公开(公告)日：2024-08-15
申请号：US18641731
申请日：2024-04-22
CPC分类号： G02B6/1228 , G02B6/1223 , G02B6/132 , G02B6/136
摘要： A spot-size converter for a photonic integrated circuit, comprising a substrate, and a waveguide. The waveguide comprises a first waveguide portion and a second waveguide portion. The first waveguide portion is on a first portion of the substrate. The second waveguide portion is on a second portion of the substrate. A size of the first waveguide portion in a first direction perpendicular to a light propagation direction of the waveguide is less than a size of the second waveguide portion in the first direction.
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