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公开(公告)号：US12156310B2
公开(公告)日：2024-11-26
申请号：US18187817
申请日：2023-03-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04B10/032 , G02B27/10 , H04Q11/00 , H05B47/105
Abstract: An optical source switching apparatus including first optical sources, an optical cross-connect device, second optical sources, and a first coupler. The optical cross-connect device is connected to the first optical sources and the first coupler, and the first coupler is connected to the second optical source; both the first optical source and the second optical source are configured to output continuous optical energy, and the optical cross-connect device is configured to enable optical energy output by at least one of the first optical sources to enter the first coupler when at least one of the second optical sources fails; and the first coupler is configured to implement beam splitting of the optical energy output by the first optical source or the second optical source.
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2.发明公开公开(公告)号：US20240006859A1
公开(公告)日：2024-01-04
申请号：US18468071
申请日：2023-09-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guangcan Chen , Yuanbing Cheng , Yanbo Li
CPC classification number: H01S5/50 , H01S5/0261 , H01S5/3407
Abstract: An optical modulation and amplification apparatus, an optical module, an optical network unit, and an optical communication system are provided. The optical modulation and amplification apparatus includes an electric absorption modulator and a semiconductor optical amplifier. The electric absorption modulator and the semiconductor optical amplifier share a same substrate and a same multi-layer material structure. The multi-layer material structure includes, from bottom to top, at least a first quantum well, an electron blocking layer, a second quantum well, and an upper separate confinement layer. The electric absorption modulator is configured to modulate injection light by using the first quantum well, and the semiconductor optical amplifier is configured to amplify the injection light by using the second quantum well.
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3.发明授权公开(公告)号：US11606148B2
公开(公告)日：2023-03-14
申请号：US17325763
申请日：2021-05-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhen Dong , Yanbo Li , Xiaolu Song
Abstract: Example polarization processing optical devices, methods, and systems are disclosed. A polarization processing optical device includes a polarization beam splitter (PBS), a polarization rotator (PR), a coupler, and a phase tuner (PT), where one port of the PBS is configured to input a continuous light source, and the other two ports of the PBS are respectively connected to the PR and one port of the coupler, the PR is connected to another port of the coupler, the PT is disposed on a connection between the PBS and the coupler or a connection between the PR and the coupler, at least one port of the coupler is configured to output single-polarization light, and the PT is configured to control output optical power of the coupler.
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公开(公告)号：US20250015490A1
公开(公告)日：2025-01-09
申请号：US18713372
申请日：2022-05-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zongze Li , Yanbo Li , Wenjun Chen , Jun You , Kemeng Wang
Abstract: An antenna assembly includes a first radiator, a second radiator, a feeding structure, and a decoupling apparatus. The first radiator includes a first radiation branch and a second radiation branch that have opposite bending directions, and a first gap exists between the first radiation branch and the second radiation branch. The second radiator includes a third radiation branch and a fourth radiation branch that have opposite bending directions, and a second gap exists between the third radiation branch and the fourth radiation branch. The feeding structure is electrically coupled to the first radiation branch and the third radiation branch. The first radiator and the second radiator share a common part, the common part is a common branch, and the common branch is electrically coupled to a grounding terminal of the antenna assembly through the decoupling apparatus.
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公开(公告)号：US11320677B2
公开(公告)日：2022-05-03
申请号：US16932515
申请日：2020-07-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Sujie Zhou , Long Luo , Ruiqiang Ji , Yanbo Li , Mai Wang
IPC: G02F1/01
Abstract: A wavelength calibration method for a microring filter includes selecting N wavelengths from M wavelengths, and performing operations on the microring filter for each of the N wavelengths, thereby obtaining N sets of calibrated voltages, and obtaining, based on N sets of calibrated voltages, M−N sets of calibrated voltages corresponding to M−N wavelengths of the M wavelengths. The operating include adjusting thermal tuning power of the plurality of microrings in response to one set of voltages, and obtaining a plurality of sets of voltages that enable monitored optical power to have an extreme value, and using the plurality of sets of voltages as a reference, adjusting the thermal tuning power of the plurality of microrings in response to another set of voltages, and determining one of the N sets of calibrated voltages from the plurality of sets of voltages.
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Patent Agency Ranking
公开(公告)号：US10027417B2
公开(公告)日：2018-07-17
申请号：US15461263
申请日：2017-03-16
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B10/516 , H04B10/50 , H04B10/58
Abstract: Embodiments of the present invention provide an optical signal modulation apparatus and system. The optical signal modulation apparatus includes: a laser, where each of at least one first output end and at least one second output end of the laser is connected to an electro-absorption modulator (EAM), the laser is configured to generate at least two optical signals, where at least one of the optical signals is sent to at least one EAM by using the at least one first output end, and at least one of the optical signals is sent to at least one EAM by using the at least one second output end, and each EAM is configured to modulate a received electrical signal onto the received optical signal for outputting. The apparatus has a simple structure and less complex production.
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公开(公告)号：US20240019756A1
公开(公告)日：2024-01-18
申请号：US18477552
申请日：2023-09-29
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: G02F1/2257 , G02F1/212
Abstract: A PN junction, a method for preparing a PN junction, and a modulator are disclosed. The PN junction includes a slab waveguide layer and a plurality of waveguides. The slab waveguide layer includes P-type doped regions and N-type doped regions, and a carrier-depletion region in a shape of S is formed at a boundary between the two types of regions. Each of the plurality of waveguides arranged at intervals includes a P-type doped region and an N-type doped region, and one carrier-depletion region is formed at a boundary between the two regions. Projections of the P-type doped regions, the N-type doped regions, and the carrier-depletion regions of the plurality of waveguides arranged at intervals on a surface of a slab waveguide region basically coincide with projections of corresponding regions of the slab waveguide layer on the surface of the slab waveguide region.
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公开(公告)号：US11877368B2
公开(公告)日：2024-01-16
申请号：US17540699
申请日：2021-12-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04B10/032 , H05B47/105 , G02B27/10 , H04Q11/00
CPC classification number: H05B47/105 , G02B27/108 , H04B10/032 , H04Q11/0001
Abstract: An optical source switching apparatus including first optical sources, an optical cross-connect device, second optical sources, and a first coupler. The optical cross-connect device is connected to the first optical sources and the first coupler, and the first coupler is connected to the second optical source; both the first optical source and the second optical source are configured to output continuous optical energy, and the optical cross-connect device is configured to enable optical energy output by at least one of the first optical sources to enter the first coupler when at least one of the second optical sources fails; and the first coupler is configured to implement beam splitting of the optical energy output by the first optical source or the second optical source.
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公开(公告)号：US11095386B2
公开(公告)日：2021-08-17
申请号：US15931714
申请日：2020-05-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Andrea Melloni , Francesco Morichetti , Ruiqiang Ji , Douglas Aguiar , Maziyar Milanizadeh , Sujie Zhou , Yanbo Li , Long Luo , Li Zeng
Abstract: An ADD/DROP filter and an optical add/drop multiplexer are disclosed. An ADD/DROP filter includes an input port, an output port, an add port connecting to a modulator, and a drop port. The modulator is configured to load a pilot signal to a first optical signal to obtain a second optical signal, and transmit the second optical signal to the add port. A third optical signal is input to the input port. A wavelength difference between the second optical signal and the third optical signal is an integral multiple of a free spectral range. A power detector is connected to the output port and/or the drop port. The power detector is configured to obtain an output optical signal from the output port or the drop port and detect an optical power of the output optical signal.
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公开(公告)号：US10684497B2
公开(公告)日：2020-06-16
申请号：US16252450
申请日：2019-01-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanbo Li , Xiaolu Song , Zhen Dong , Ruiqiang Ji , Shengmeng Fu , Li Zeng
Abstract: An electro-optic modulator includes an input waveguide, a beam splitter connected to the input waveguide, a modulation arm that is disposed on each branch of the beam splitter and modulates a signal. Each modulation arm is correspondingly disposed with a first layer electrode and a second layer electrode. The first layer electrode is a high-frequency traveling wave electrode and is configured to change carrier concentration in the modulation arm, the second layer electrode is a direct current electrode having an inductor function, and an inductor formed in the second layer electrode is connected to the first layer electrode. The electro-optic modulator has functions of a bias tee, so that integration of the electro-optic modulator can be improved without affecting its performance. High-density packaging layout difficulty and cabling pressure can be effectively reduced, and cabling and packaging of a multi-channel high-speed signal on a base board can be implemented.
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