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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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公开(公告)号：US20210278596A1
公开(公告)日：2021-09-09
申请号：US17329426
申请日：2021-05-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lei MAO , Liangjia ZONG
Abstract: The technology described herein relates to a wavelength selective switch (WSS). An output port arrangement solution of an optical fiber array of the WSS includes: centers of output ports are arranged along a curve or along a combination line that includes a line segment, and a straight line connecting centers of any two output ports on the curve or the combination line does not pass through an input port. A light beam received from the input port is diffracted to the output ports through an LCoS panel, and a straight line that all diffraction orders that are generated after the diffraction pass through intersects with the curve or the line segment, and there is only one intersection point.
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公开(公告)号：US20180046016A1
公开(公告)日：2018-02-15
申请号：US15797795
申请日：2017-10-30
Inventor： Liangjia ZONG , Daping CHU , Haining YANG
IPC: G02F1/1333 , G02F1/1337 , G02F1/1335 , G02F1/1343
CPC classification number: G02F1/133345 , G02F1/133553 , G02F1/1337 , G02F1/133707 , G02F1/133734 , G02F1/13439 , G02F1/136277 , G02F2001/133521 , G02F2001/133773 , G02F2001/133776 , G02F2001/136281 , G02F2203/12 , G02F2203/50
Abstract: A spatial phase modulator and a method for producing a spatial phase modulator are provided. The spatial phase modulator includes a first substrate (70) and a second substrate (10) that are meshed together, and a liquid crystal layer (40) disposed between the two substrates, where a transparent electrode layer (60) and a first alignment and guiding layer (50) are disposed in a cascading manner on a side that is of the first substrate (70) and that faces the liquid crystal layer (40); and an electrode layer (20) and an insulation medium glass layer (30) are disposed in a cascading manner on a side that is of the second substrate (10) and that faces the liquid crystal layer (40), where the insulation medium glass layer (30) has an inclined serration structure (321) on a side facing the liquid crystal layer (40).
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公开(公告)号：US20220179282A1
公开(公告)日：2022-06-09
申请号：US17681097
申请日：2022-02-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zeshan CHANG , Lei MAO , Liangjia ZONG , Tong LI , Hong YANG
IPC: G02F1/31
Abstract: Embodiments of the present application provide a method for controlling voltages of a liquid crystal on silicon (LCoS) two-dimensional array which includes a plurality of pixel sets, and the plurality of pixel sets include a first pixel set and a second pixel set. The method includes: determining a plurality of bit sequences, where the plurality of bit sequences include a first bit sequence and a second bit sequence; controlling a voltage of the first pixel set by using the first bit sequence; and controlling a voltage of the second pixel set by using the second bit sequence, where the first pixel set and the second pixel set are in different phase cycles in a port direction of the LCoS two-dimensional array, the first pixel set and the second pixel set have a same phase, and duty ratios of the first bit sequence and the second bit sequence are the same.
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公开(公告)号：US20200225418A1
公开(公告)日：2020-07-16
申请号：US16826548
申请日：2020-03-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liangjia ZONG , Lei MAO , Mi WANG , Han ZHAO
Abstract: A liquid crystal on silicon, a wavelength selective switch, an alignment direction obtaining method, and a method for manufacturing a liquid crystal on silicon. The liquid crystal on silicon has a first pixel area, and a first liquid crystal located in the first pixel area. The first liquid crystal is deflected in a plane perpendicular to a first panel, and is deflected towards a first direction in a plane parallel to the first panel. An alignment direction of the first partial alignment film located in the first pixel area is deflected towards a second direction relative to a polarization direction of an incident beam, and the second direction is opposite to the first direction to reduce a loss of a deflected beam.
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Patent Agency Ranking
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：US20160036553A1
公开(公告)日：2016-02-04
申请号：US14882107
申请日：2015-10-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Han ZHAO , Liangjia ZONG , Ning LIU
IPC: H04J14/02 , H04B10/032 , H04Q11/00
CPC classification number: H04J14/0297 , H04B10/032 , H04J14/0212 , H04J14/0221 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0081
Abstract: The present invention provides a node apparatus, where two N×N wavelength selective switches are used to form a parallel-connected structure, and two ends of each power splitter are separately connected to input ends of the N×N wavelength selective switches, and two ends of each power combiner are separately connected to output ends of the N×N wavelength selective switches, thereby transferring route switching selection work originally performed between multiple 1×M wavelength selective switches to the inside of the N×N wavelength selective switch for implementation. Compared with an original structure using discrete components, the node apparatus is simplified, and when a traffic volume expands, the number of module slots on a line side does not need to be increased, thereby reducing usage costs eventually. The present invention is used for signal transmission in a node.
Abstract translation: 本发明提供了一种节点装置，其中使用两个N×N个波长选择开关来形成并联结构，并且每个功率分配器的两端分别连接到N×N个波长选择开关的输入端，并且两个 每个功率合成器的端部分别连接到N×N个波长选择开关的输出端，从而将最初在多个1×M波长选择开关之间执行的路由切换选择工作传送到N×N波长选择开关的内部，以实现。 与使用离散组件的原始结构相比，节点设备简化，当流量扩大时，线路侧的模块插槽数量不需要增加，从而最终降低使用成本。 本发明用于节点中的信号传输。
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公开(公告)号：US20230296842A1
公开(公告)日：2023-09-21
申请号：US18323453
申请日：2023-05-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ning ZHANG , Liangjia ZONG , Shimao LI
CPC classification number: G02B6/29304 , G02B6/29395 , G02F1/1326 , G02B26/0808
Abstract: An optical processing apparatus and an optical system. The apparatus includes an input port, an optical path conversion assembly, an LCoS assembly, and an output port. The input port receives a first light beam. The optical path conversion assembly performs chromatic dispersion on the first light beam to obtain a second light beam, the second light beam being a single-wavelength light beam. The LCoS assembly diffracts the second light beam to obtain diffracted light of the second light beam. The diffracted light of the second light beam includes 0-order diffracted light and +1-order diffracted light. The optical path conversion assembly transmits the diffracted light of the second light beam, and converges the +1-order diffracted light to the output port. The output port collimates and outputs the received +1-order diffracted light.
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公开(公告)号：US20220416931A1
公开(公告)日：2022-12-29
申请号：US17901657
申请日：2022-09-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liangjia ZONG , Gangxiang SHEN , Yongcheng LI
IPC: H04J14/02 , H04B10/272
Abstract: An example reconfigurable optical add/drop multiplexer includes: optical fibers, X first wavelength selective switches, and Y wavelength add/drop modules. The X first wavelength selective switches correspond to W directions. The W directions include a first direction and a second direction. The first direction corresponds to P first wavelength selective switches among the X first wavelength selective switches. The second direction corresponds to Q first wavelength selective switches among the X first wavelength selective switches, where P+Q is less than or equal to X. A first wavelength add/drop module is connected to A of the P first wavelength selective switches by using one or more first optical fibers, and connected to B of the Q first wavelength selective switches by using one or more second optical fibers, where the first wavelength add/drop module is one of the Y wavelength add/drop modules, A is less than P.
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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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