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公开(公告)号：US11880068B2
公开(公告)日：2024-01-23
申请号：US17527757
申请日：2021-11-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yuping Wu , Chunhui Zhang , Changzheng Su
CPC classification number: G02B6/26 , H04B10/61 , H04B10/801 , H04J14/02 , H04B10/11 , H04B10/1121 , H04B10/60 , H04B10/615 , H04B10/67
Abstract: A space optical coupling apparatus, including M first couplers, a phase adjustment apparatus, N beam splitters, M second couplers, a coupling apparatus, and a controller. The first coupler receives a beam, and couples the beam to the phase adjustment apparatus. The phase adjustment apparatus includes M phase adjusters, N beam splitters, and N detectors. Each beam splitter is configured to split a received beam into two beams, one sent to a corresponding detector and the other sent to a corresponding phase adjuster. The second coupler receives output light from the coupling apparatus, and transmits the output light into the space. The coupling apparatus is configured to couple a beam onto a single-mode fiber. The controller is configured to control, based on the beam intensity detected by the detector and the beam intensity on the single-mode fiber, the M phase adjusters to adjust the phases of the received beams.
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公开(公告)号：US10326466B2
公开(公告)日：2019-06-18
申请号：US15637846
申请日：2017-06-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yu Cai , Chunhui Zhang , Jifang He
Abstract: The present embodiments provide an analog to digital converter, including a beam splitter, M photodetectors, M amplifier modules, and an encoder. Each output end of the beam splitter is corresponding to an input end of a photodetector, an output end of each photodetector is connected to an input end of an amplifier module, and an output end of each amplifier module is connected to an input end of the encoder. The beam splitter splits an inputted analog optical signal into M optical signals, outputs each optical signal to a corresponding photodetector to convert each optical signal into a current signal, inputs each current signal to a corresponding amplifier module to generate an output voltage, and outputs the output voltage to a corresponding input end of the encoder.
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3.发明授权公开(公告)号：US12224805B2
公开(公告)日：2025-02-11
申请号：US18157197
申请日：2023-01-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chunhui Zhang , Shengyong Yan , Lei Xiong
IPC: H04B10/61 , H04B10/079 , H04B10/112
Abstract: This application provides an optical emission apparatus, an optical communication system, and an optical communication method. Light beams of N optical emission units in the optical emission apparatus are adjusted, so that an optical power of entering an optical receiving apparatus is maximized, and impact of a speckle caused by turbulence is minimized, thereby improving receiving efficiency of an optical antenna. The optical emission apparatus includes a first optical splitter and N optical emission units, where N is an integer greater than 1; the first optical splitter is configured to transmit received same signal light to the N optical emission units; and the N optical emission units are configured to output the signal light from the first optical splitter, to obtain light beams distributed based on a preset proportion.
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公开(公告)号：US11641246B2
公开(公告)日：2023-05-02
申请号：US17362874
申请日：2021-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chunhui Zhang
Abstract: This application provides an optical switching apparatus. The apparatus includes: a first optical switch, L first wavelength division multiplexers/demultiplexers, L second wavelength division multiplexers/demultiplexers, a beam generation apparatus connected to the L first wavelength division multiplexers/demultiplexers, and a detection apparatus connected to the L second wavelength division multiplexers/demultiplexers. One of a plurality of multiplexing ports of the first wavelength division multiplexer/demultiplexer is a signal light port, and a remaining multiplexing port is connected to the beam generation apparatus. A plurality of demultiplexing ports of the first wavelength division multiplexer/demultiplexer are connected to the first optical switch. One of a plurality of multiplexing ports of the second wavelength division multiplexer/demultiplexer is a signal light port, and a remaining multiplexing port is connected to the detection apparatus. A plurality of demultiplexing ports of the second wavelength division multiplexer/demultiplexer are connected to the first optical switch.
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公开(公告)号：US10397673B2
公开(公告)日：2019-08-27
申请号：US16241117
申请日：2019-01-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chunhui Zhang , Peng Zhang , Shengyong Yan
Abstract: This application discloses a method and an apparatus for controlling an optical switch matrix. The method includes: setting row drives corresponding to P input ports to a reset row drive value, and setting column drives corresponding to Q output ports to a reset column drive value, so that optical switches at intersections are in a first state; successively setting, based on time, a row drive corresponding to an ith input port to values in a switching row drive sequence, and successively setting, based on time, a column drive corresponding to a jth output port to values in a switching column drive sequence, so that a target optical switch in the P×Q optical switches remains in the first state, and the other optical switches are switched from the first state to a second state in first time periods.
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Patent Agency Ranking
公开(公告)号：US09800959B2
公开(公告)日：2017-10-24
申请号：US15192801
申请日：2016-06-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chunhui Zhang , Peng Zhang
CPC classification number: H04Q11/0005 , H04J14/02 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0056 , H04Q2011/0058 , H04Q2213/1301
Abstract: An apparatus includes an input port group, which includes multiple input slots, and multiple input ports are provided in each input slot. An input allocation matrix includes multiple first optical switches, and an input port of the first optical switch is connected to an input port of the input slot. A cross-connect matrix includes multiple second optical switches, and an output port of the first optical switch is connected to an input port of the second optical switch. An output allocation matrix includes multiple third optical switches, and an input port of the third optical switch is connected to an output port of the second optical switch. An output port group includes multiple output slots, multiple output ports are provided in each output slot, and an output port of the output slot is connected to an output port of the third optical switch.
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公开(公告)号：US20170302290A1
公开(公告)日：2017-10-19
申请号：US15637846
申请日：2017-06-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yu Cai , Chunhui Zhang , Jifang He
CPC classification number: H03M1/146 , G01N15/1436 , G01N15/1459 , G02F7/00 , G11C27/02 , G11C27/024 , G11C27/026 , H03K17/06
Abstract: The present embodiments provide an analog to digital converter, including a beam splitter, M photodetectors, M amplifier modules, and an encoder. Each output end of the beam splitter is corresponding to an input end of a photodetector, an output end of each photodetector is connected to an input end of an amplifier module, and an output end of each amplifier module is connected to an input end of the encoder. The beam splitter splits an inputted analog optical signal into M optical signals, outputs each optical signal to a corresponding photodetector to convert each optical signal into a current signal, inputs each current signal to a corresponding amplifier module to generate an output voltage, and outputs the output voltage to a corresponding input end of the encoder.
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公开(公告)号：US20240056706A1
公开(公告)日：2024-02-15
申请号：US18496241
申请日：2023-10-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hui Xiang , Xinhua Xiao , Chunhui Zhang
IPC: H04Q11/00
CPC classification number: H04Q11/0005 , H04Q2011/0056 , H04Q2011/0075 , H04Q2011/0081
Abstract: An electrical switching cluster system includes a plurality of input nodes, a plurality of intermediate nodes, and a plurality of output nodes. Each of the input nodes performs electrical switching on electrical signals to obtain a plurality of groups of first electrical signals, and converts one group of first electrical signals into a multi-wavelength first optical signal. Each of the intermediate nodes demultiplexes a plurality of first optical signals to obtain a plurality of groups of second optical signals, and multiplexes optical signals of different wavelengths in the plurality of groups of second optical signals to obtain a plurality of multi-wavelength third optical signals. Each of the output nodes converts one third optical signal into one group of second electrical signals, and performs electrical switching on a plurality of groups of second electrical signals to output the plurality of groups of second electrical signals through any output port.
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公开(公告)号：US20210328702A1
公开(公告)日：2021-10-21
申请号：US17362874
申请日：2021-06-29
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chunhui Zhang
Abstract: This application provides an optical switching apparatus. The apparatus includes: a first optical switch, L first wavelength division multiplexers/demultiplexers, L second wavelength division multiplexers/demultiplexers, a beam generation apparatus connected to the L first wavelength division multiplexers/demultiplexers, and a detection apparatus connected to the L second wavelength division multiplexers/demultiplexers. One of a plurality of multiplexing ports of the first wavelength division multiplexer/demultiplexer is a signal light port, and a remaining multiplexing port is connected to the beam generation apparatus. A plurality of demultiplexing ports of the first wavelength division multiplexer/demultiplexer are connected to the first optical switch. One of a plurality of multiplexing ports of the second wavelength division multiplexer/demultiplexer is a signal light port, and a remaining multiplexing port is connected to the detection apparatus. A plurality of demultiplexing ports of the second wavelength division multiplexer/demultiplexer are connected to the first optical switch.
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10.发明申请公开(公告)号：US20170289654A1
公开(公告)日：2017-10-05
申请号：US15625829
申请日：2017-06-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chunhui Zhang , Yu Cai , Hongyan Fu
IPC: H04Q11/00
CPC classification number: H04Q11/0005 , H04Q11/00 , H04Q2011/0035 , H04Q2011/0039 , H04Q2011/0058
Abstract: An optical switch chip, an optical switch driving module, and an optical switch driving method are disclosed. The optical switch driving module includes an optical switch chip, and the optical switch chip includes multiple optical switch units. The optical switch units are divided into N groups, where N>=1. Each group of optical switch units shares a pair of electrodes, each pair of electrodes is configured to connect to a multi-frequency driving signal source, and each optical switch unit connects to the multi-frequency driving signal source by using the band-pass filter. Pass bands of M band-pass filters that are connected to M optical switch units in a same group are different, where M>=2. The multi-frequency driving signal source outputs multiple driving signals of different frequencies that are respectively corresponding to the M band-pass filters, so as to drive the optical switch unit.
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