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公开(公告)号：US20170041689A1
公开(公告)日：2017-02-09
申请号：US15331268
申请日：2016-10-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunfei YAN , Zhiyong FENG , Han ZHAO , Liangjia ZONG
IPC: H04Q11/00
CPC classification number: H04Q11/0062 , G02B6/266 , G02B6/2713 , G02B6/2931 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/0037 , H04Q2011/0052 , H04Q2011/009
Abstract: Embodiments of the present invention provide an optical communications apparatus, where the apparatus includes: an input system, a first optical switch array, and an output system, where the input system includes N input ports that are one-dimensionally arranged on a first plane, a first beam expander, a demultiplexer, and a first optical path changer; the first optical switch array includes N×K first optical switch units that are two-dimensionally arranged on a second plane, and the first optical switch units can rotate in a first axial line direction and a second axial line direction; and the output system includes a second optical path changer, a second beam expander, a second optical switch array, and M output ports that are two-dimensionally arranged.
Abstract translation: 本发明的实施例提供了一种光通信装置，其中该装置包括：输入系统，第一光开关阵列和输出系统，其中输入系统包括一维排列在第一平面上的N个输入端口， 第一光束扩展器，解复用器和第一光路改变器; 第一光开关阵列包括二维布置在第二平面上的N×K个第一光开关单元，并且第一光开关单元可以在第一轴线方向和第二轴线方向上旋转; 并且输出系统包括二维布置的第二光路改变器，第二光束扩展器，第二光开关阵列和M个输出端口。
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公开(公告)号：US20210175994A1
公开(公告)日：2021-06-10
申请号：US17181760
申请日：2021-02-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xu ZHOU , Xiang LIU , Yansi LE , Zhiyong FENG
Abstract: This disclosure relates to a signal processing method and apparatus. The method includes: receiving an optical signal in a target receive channel, and converting the optical signal into an electrical signal; determining, in the converted electrical signal, an electrical signal associated with a non-overlapping frequency band between the target receive channel and another channel, where the another channel is a channel that overlaps the target receive channel; and determining, based on the electrical signal associated with the non-overlapping frequency band, an electrical signal corresponding to a valid received optical signal that does not include an interfering optical signal in the target receive channel. In this disclosure, the target transmit channel and the another channel are set to channels that overlap each other, thereby reducing bandwidths occupied by the channels. In the method provided in the embodiments of this disclosure, spectrum utilization can be improved, thereby improving a data transmission rate.
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公开(公告)号：US20200371294A1
公开(公告)日：2020-11-26
申请号：US16990129
申请日：2020-08-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunfei YAN , Zhiyong FENG , Liangjia ZONG
Abstract: An optical cross-connect disclosed herein includes an input-end unit, an optical beam-splitting and switching unit, and an output-end unit. The input-end unit is configured to transmit a set of first light beams to the optical beam-splitting and switching unit. The optical beam-splitting and switching unit is configured to split each light beam in the set of first light beams into second light beams, to obtain a set of second light beams. The optical beam-splitting and switching unit is further configured to: perform optical path deflection on each light beam in the set of second light beams based on a preset optical-path offset parameter set, and transmit, to the output-end unit, the deflected second light beams. The output-end unit is configured to output the set of second light beams.
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Patent Agency Ranking
公开(公告)号：US20190238223A1
公开(公告)日：2019-08-01
申请号：US16378527
申请日：2019-04-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liangjia ZONG , Han ZHAO , Zhiyong FENG , Yunfei YAN
IPC: H04B10/079 , H04J14/02 , H04B10/548
Abstract: The present invention discloses an optical power equilibrium method and apparatus. The method includes: configuring a liquid crystal on silicon LCOS as a blazed grating pattern whose phase periodically changes, where each period includes three grating segments, a pixel quantity in each period does not change, and a second grating segment is located between a first grating segment and a third grating segment; monitoring power of wavelength signals in a WDM signal, where the WDM signal includes a first wavelength signal; and reducing a phase modulation depth and a pixel quantity of the second grating segment in each period at a first location if power of the first wavelength signal is greater than preset target power, so that the power of the first wavelength signal is the same as the target power, where the first location is a location at which the first wavelength signal is incident to the LCOS.
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公开(公告)号：US20180267247A1
公开(公告)日：2018-09-20
申请号：US15988760
申请日：2018-05-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunfei YAN , Zhiyong FENG , Han ZHAO , Liangjia ZONG
CPC classification number: G02B6/29383 , G02B6/29311 , G02B6/35 , G02B6/3518 , G02B6/3546 , H04J14/0212
Abstract: Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M×N beams in the at least M×N beams can be routed to the N output ports.
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公开(公告)号：US20180375584A1
公开(公告)日：2018-12-27
申请号：US16047013
申请日：2018-07-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun LUO , Zhiyong FENG
Abstract: A wavelength tunable optical transmitter apparatus relates to the field of communications technologies and includes a plurality of multi-longitudinal mode lasers (1), a cyclic wavelength demultiplexer/multiplexer (2), and a reflector (3). The multi-longitudinal mode lasers output multi-longitudinal mode signals having a periodically repeated frequency interval, where the period is Δfmode. The cyclic wavelength demultiplexer/multiplexer performs periodically repeated filtering on the multi-longitudinal mode signals input by the multi-longitudinal mode lasers, to obtain single frequency signals, where a repetition period of a filter window is Δfband, Δfmode is different from Δfband, and Δfmode and Δfband are not in an integer-multiple relationship, and then, multiplexes the plurality of single frequency signals and outputs the multiplexed signal. The reflector reflects the multiplexed signal. The reflected multiplexed signal separately returns to the multi-longitudinal mode laser by using the cyclic wavelength demultiplexer/multiplexer again.
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公开(公告)号：US20210067244A1
公开(公告)日：2021-03-04
申请号：US17097519
申请日：2020-11-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhenhua DONG , Chao PAN , Zhiyong FENG , Xu ZHOU
IPC: H04B10/071 , H04B10/40 , H04B10/61 , H04B10/25
Abstract: This application discloses an optical signal transceiver apparatus, and belongs to the communications field. The apparatus includes: an optical signal generation module, configured to generate a to-be-sent optical signal and a local oscillator optical signal, where the to-be-sent optical signal includes an OTDR signal; an optical combining/splitting module, configured to: receive a to-be-processed optical signal from an optical fiber; and input the to-be-processed optical signal into an coherent receiving module; the coherent receiving module, configured to coherently receive the local oscillator optical signal and the to-be-processed optical signal to obtain a to-be-processed electrical signal; a signal processing module, configured to: obtain a first digital signal and a second digital signal from the to-be-processed electrical signal based on a signal frequency; process the first digital signal to obtain a communications code stream; and process the second digital signal to obtain information used to reflect a feature of the optical fiber.
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公开(公告)号：US20200225417A1
公开(公告)日：2020-07-16
申请号：US16836488
申请日：2020-03-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunfei YAN , Zhiyong FENG , Han ZHAO , Liangjia ZONG
Abstract: Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M×N beams in the at least M×N beams can be routed to the N output ports.
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