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公开(公告)号：US20180095199A1
公开(公告)日：2018-04-05
申请号：US15835748
申请日：2017-12-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ming Li , Xin Tu , Hongyan Fu
CPC classification number: G02B5/18 , G02B6/12004 , G02B6/1228 , G02B6/124 , G02B6/305 , G02B6/34 , G02B6/4206 , G02B2006/12061 , G02B2006/12107
Abstract: A grating coupler and a preparation method thereof are provided. The grating coupler includes a substrate layer, a lower confining layer, a waveguide core layer, and an upper confining layer that are sequentially arranged. The waveguide core layer includes a submicron waveguide, a first tapered waveguide, and a waveguide array. The waveguide array includes at least two waveguide groups, the waveguide group includes at least one waveguide chain, the waveguide chain includes at least two waveguides that have different widths, and the waveguides in the waveguide chain are connected to each other. An end of the waveguide chain in the waveguide array is connected to a wide end of the first tapered waveguide, and a narrow end of the first tapered waveguide is connected to the submicron waveguide.
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公开(公告)号：US10422960B2
公开(公告)日：2019-09-24
申请号：US16251172
申请日：2019-01-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiejiang Xing , Xin Tu , Ming Li
IPC: G02B6/35
Abstract: This application discloses an optical switch and an optical switching system. The optical switch includes a first waveguide, a second waveguide, and a movable waveguide, the first waveguide and the second waveguide are immovable relative to a substrate and are located in a plane, and an optical coupling relationship exists between the first waveguide and the second waveguide; the movable waveguide is movable relative to the substrate, and the movable waveguide is optically coupled to an input section or an output section of the first waveguide; when the movable waveguide is located at a first location, the movable waveguide is optically decoupled from the first waveguide, and the optical switch is in a through state; and when the movable waveguide is located at a second location, the movable waveguide is optically coupled to the input section or the output section, and the optical switch is in a drop state.
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公开(公告)号：US10222549B2
公开(公告)日：2019-03-05
申请号：US15495583
申请日：2017-04-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Tu , Dongyu Geng , Fei Zhao
Abstract: The present invention discloses a mode multiplexer/demultiplexer and a switching node. The mode multiplexer/demultiplexer includes a multi-mode optical waveguide, a first transmission optical waveguide, and a second transmission optical waveguide. The multi-mode optical waveguide includes a first mode channel and a second mode channel. The first transmission optical waveguide includes a first coupling region that includes a first fundamental-mode channel, and the first fundamental-mode channel performs optical mode coupling with the first mode channel in the multi-mode optical waveguide. The second transmission optical waveguide includes a second coupling region that includes a second fundamental-mode channel, and the second fundamental-mode channel performs optical mode coupling with the second mode channel in the multi-mode optical waveguide. An effective refractive index of a fundamental-mode optical signal in the first coupling region is different from an effective refractive index of the same fundamental-mode optical signal in the second coupling region.
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公开(公告)号：US10067363B2
公开(公告)日：2018-09-04
申请号：US15187328
申请日：2016-06-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Tu , Hongyan Fu , Wanyuan Liu
Abstract: Embodiments provide a polarizer and a polarization modulation system. The polarizer includes at least one MMI multi-mode waveguide, where one side of each MMI multi-mode waveguide is connected to an input waveguide, and the other side is connected to an output waveguide. An end portion of the side, on which the output waveguide is located, of the MMI multi-mode waveguide is provided with an adjustable portion, and the adjustable portion is connected to the output waveguide. The polarizer further includes a controller connected to the adjustable portion, where the controller is configured to perform control to change a material property of the adjustable portion, so that the output waveguide outputs optical signals in different polarization states.
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公开(公告)号：US20170023808A1
公开(公告)日：2017-01-26
申请号：US15187328
申请日：2016-06-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Tu , Hongyan Fu , Wanyuan Liu
CPC classification number: G02F1/0136 , G02B6/126 , G02B6/2813 , G02F1/0147 , G02F1/025 , G02F1/095 , G02F2201/05 , G02F2201/58 , G02F2202/10 , G02F2202/105 , G02F2203/07
Abstract: Embodiments provide a polarizer and a polarization modulation system. The polarizer includes at least one MMI multi-mode waveguide, where one side of each MMI multi-mode waveguide is connected to an input waveguide, and the other side is connected to an output waveguide. An end portion of the side, on which the output waveguide is located, of the MMI multi-mode waveguide is provided with an adjustable portion, and the adjustable portion is connected to the output waveguide. The polarizer further includes a controller connected to the adjustable portion, where the controller is configured to perform control to change a material property of the adjustable portion, so that the output waveguide outputs optical signals in different polarization states.
Abstract translation: 实施例提供偏振器和偏振调制系统。 偏振器包括至少一个MMI多模波导，其中每个MMI多模波导的一侧连接到输入波导，另一侧连接到输出波导。 MMI多模波导的输出波导所在的一侧的端部设置有可调节部分，并且可调部分连接到输出波导。 偏振器还包括连接到可调部分的控制器，其中控制器被配置为执行控制以改变可调部分的材料特性，使得输出波导输出具有不同极化状态的光信号。
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Patent Agency Ranking
公开(公告)号：US10705295B2
公开(公告)日：2020-07-07
申请号：US16262585
申请日：2019-01-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xin Tu
Abstract: This application discloses an optical switch and an optical switching system. The optical switch includes a first waveguide, a second waveguide, and a first movable waveguide. The first waveguide and the second waveguide are immovable relative to a substrate. The first waveguide and the second waveguide are located in a first plane, and the first waveguide and the second waveguide do not intersect. The first movable waveguide is movable relative to the substrate. If the first movable waveguide is at a first location, the first movable waveguide is optically decoupled from the first waveguide and the second waveguide, and the optical switch is in a through state. If the first movable waveguide is at a second location, the first movable waveguide is optically coupled to the first waveguide and the second waveguide, and the optical switch is in a drop state.
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公开(公告)号：US10670811B2
公开(公告)日：2020-06-02
申请号：US16382206
申请日：2019-04-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xin Tu
Abstract: Embodiments of the present invention relate to a microring resonator control method and apparatus. The method includes: receiving an instruction, where the instruction is used to configure an operating wavelength of a microring resonator; determining whether the operating wavelength of the microring resonator is less than or equal to a center wavelength of a channel spectrum; and when the operating wavelength of the microring resonator is less than or equal to the center wavelength of the channel spectrum, configuring thermode power of the microring resonator based on a spacing between the operating wavelength and a first wavelength; or when the operating wavelength of the microring resonator is greater than the center wavelength of the channel spectrum, configuring thermode power of the microring resonator based on a spacing between the operating wavelength and a second wavelength.
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公开(公告)号：US10241273B2
公开(公告)日：2019-03-26
申请号：US15795626
申请日：2017-10-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xin Tu , Yuming Wei , Hongyan Fu
Abstract: A polarization rotator and an optical signal processing method are disclosed. A first transceiving waveguide includes a first end and a second end; a polarization rotation region waveguide includes a first waveguide and a second waveguide, where the first waveguide is located above the second waveguide, the first waveguide is connected to the second end of the first transceiving waveguide, the first waveguide and the second waveguide are non-linear profile waveguides; a mode conversion region waveguide includes a third waveguide and a fourth waveguide, where the third waveguide is connected to the second waveguide, the fourth waveguide is on a same horizontal plane as the third waveguide and the second waveguide, the third waveguide and the fourth waveguide are non-linear profile waveguides; and the second transceiving waveguide includes a third end and a fourth end, where the third end of the second transceiving waveguide is connected to the fourth waveguide.
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公开(公告)号：US20190086764A1
公开(公告)日：2019-03-21
申请号：US16179631
申请日：2018-11-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiejiang Xing , Ming Li , Xin Tu
Abstract: The present application discloses an optical switch, including a first optical waveguide, a second optical waveguide, and a first heater, where a place at which a distance between the first optical waveguide and the second optical waveguide is the smallest is a junction; the first heater is adjacent to the third optical sub-waveguide; and there is a first dielectric material between the first heater and the third optical sub-waveguide, and there is a second dielectric material between the third optical sub-waveguide and the fourth optical sub-waveguide, where a thermal conductivity of the first dielectric material is greater than a thermal conductivity of the second dielectric material. The optical switch has advantages such as high heating efficiency, a small quantity of heaters, and simple control.
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公开(公告)号：US10101531B2
公开(公告)日：2018-10-16
申请号：US15870211
申请日：2018-01-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Tu
Abstract: A polarization mode converter includes a rectangular waveguide, a first tapered waveguide, and a second tapered waveguide. A height of the rectangular waveguide is a first height (H1). A side of the first tapered waveguide is coupled to the rectangular waveguide. A width of the first tapered waveguide changes gradually. A height of the first tapered waveguide is a second height (H2), and H2 is less than H1. The second tapered waveguide is detached from the rectangular waveguide and the first tapered waveguide. A width of the second tapered waveguide changes gradually. A height of the second tapered waveguide is H1. The first tapered waveguide is located between the rectangular waveguide and the second tapered waveguide.
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