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公开(公告)号：US20240056210A1
公开(公告)日：2024-02-15
申请号：US18493273
申请日：2023-10-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Guo , Rui Zhou , Xiaofan Ji , Lin Zhang
IPC: H04J14/02 , H04B10/079 , H04J14/04
CPC classification number: H04J14/02216 , H04B10/07955 , H04J14/04
Abstract: An optical signal amplification apparatus includes a power detection module, a pump control module, and a Raman amplification module. The power detection module is configured to detect power of each of a plurality of G wavelength channels in each of a plurality of N spatial dimensions, and send power configuration information to the pump control module. The pump control module is configured to output N channels of pump light, where each channel of pump light includes M pieces of split pump light of different wavelengths, and a proportion of each piece of split pump light in pump light of a corresponding wavelength is determined based on the power configuration information. The Raman amplification module is configured to perform Raman amplification on a space division multiplexed signal in all of the N spatial dimensions by using the N channels of pump light.
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公开(公告)号：US12095727B2
公开(公告)日：2024-09-17
申请号：US17546278
申请日：2021-12-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhengquan Huang , Ningguo Shen , Qiang Guo , Dakun Li
CPC classification number: H04L63/0227 , H04L63/10 , H04L63/1441
Abstract: In a method for sending packet traffic, an access device transmits a first part of to-be-transmitted traffic to a forwarding controller for check. After the check is passed, the forwarding controller forwards the first part of the to-be-transmitted traffic. The access device transmits a second part of the to-be-transmitted traffic to a first forwarding node, and the first forwarding node forwards the second part of the to-be-transmitted traffic based on received forwarding indication information and forwarding information of the to-be-transmitted traffic.
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公开(公告)号：US20230421260A1
公开(公告)日：2023-12-28
申请号：US18464148
申请日：2023-09-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： You Wang , Wei Li , Shengwen Feng , Qiang Guo
IPC: H04B10/2507 , H04B1/525
CPC classification number: H04B10/2507 , H04B1/525 , H04B10/071
Abstract: A method includes: a first device sends a first data frame to a second device, where the first data frame includes an LFMS a1; the first device receives a mixed signal, where the mixed signal includes a first reflected data frame of the first data frame and a second data frame sent by the second device; the first device obtains a first offset based on the LFMS a1 in the first reflected data frame, and obtains a reconstructed data frame of the first reflected data frame based on the first data frame; and the first device eliminates the reconstructed data frame of the first reflected data frame from the mixed signal based on the first offset.
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公开(公告)号：US12197008B2
公开(公告)日：2025-01-14
申请号：US17854585
申请日：2022-06-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiang Guo , Rui Zhou , Zhiqun Yang , Lin Zhang
Abstract: A communication system is provided. The communication system may include few mode fibers of at least two spans and a mode converter. The few mode fiber is configured to transmit M received mode groups, where group delays of the M mode groups during transmission in the few mode fiber are symmetrically distributed about a center. The mode converter is configured to: receive the M mode groups from the few mode fiber, perform mode group exchange between a first mode group and a second mode group in the M mode groups to obtain M exchanged mode groups, where a group delay of the first mode group and a group delay of the second mode group are symmetric about the center.
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公开(公告)号：US11747565B2
公开(公告)日：2023-09-05
申请号：US17863100
申请日：2022-07-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Juhao Li , Jinglong Zhu , Yongqi He , Shengling Wu , Qiang Guo , Ruishan Chen , Rui Zhou
CPC classification number: G02B6/29319 , G02B6/02123 , G02B6/02295
Abstract: An optical fiber filter includes a fiber core, inner cladding, and outer cladding. A refractive index of the fiber core, a refractive index of the inner cladding, and a refractive index of the outer cladding progressively decrease in sequence. The fiber core is configured to transmit at least two mutually different first optical signal modes, the inner cladding is configured to transmit at least two mutually different second optical signal modes, and at least one fiber grating is etched on the fiber core. At least part of optical power of a target first optical signal mode is coupled to only a target second optical signal mode at the fiber grating. The target first optical signal mode is one of the at least two first optical signal modes, and the target second optical signal mode is one of the at least two second optical signal modes.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20230084074A1
公开(公告)日：2023-03-16
申请号：US17990331
申请日：2022-11-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Guo , Kui Ouyang , Minghui Liu , Shiyi Cao
IPC: H04B10/564 , H04B10/294 , H04B10/291
Abstract: A filter includes a first filter component coupled to a second filter component. The first filter component is configured to receive an optical signal, and filter the optical signal based on a first power difference of signals transmitted on a plurality of frequency bands in the optical signal, where the first power difference includes a difference caused by a first doped optical fiber. The second filter component is loaded with a first driving electrical signal used to control a frequency response of the second filter component. The second filter component is configured to filter, using the frequency response based on a second power difference of the signals transmitted on the plurality of frequency bands, an optical signal obtained after the filtering by the first filter component.
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公开(公告)号：US20220329035A1
公开(公告)日：2022-10-13
申请号：US17851307
申请日：2022-06-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lin Zhang , Yaping Liu , Zhiqun Yang , Qiang Guo , RUI ZHOU
Abstract: A fiber amplifier is provided, including a pump laser (202), a pump and signal combiner (203), and a few-mode doped fiber (204). The pump laser (202) is configured to output pump light. The pump and signal combiner (203) is configured to couple input few-mode signal light and the pump light into the few-mode doped fiber (204). Refractive indexes of a fiber core of the few-mode doped fiber (204) are distributed to be gradient along a radial direction of a cross section, the fiber core is etched with periodic gratings along an axial direction, and periods of the gratings satisfy a phase matching condition. The fiber amplifier achieves strong coupling and co-amplification between optical signal modes, thereby reducing a differential gain between mode groups.
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公开(公告)号：US20220103519A1
公开(公告)日：2022-03-31
申请号：US17546278
申请日：2021-12-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhengquan Huang , Ningguo Shen , Qiang Guo , Dakun Li
IPC: H04L45/12
Abstract: In a method for sending packet traffic, an access device transmits a first part of to-be-transmitted traffic to a forwarding controller for check. After the check is passed, the forwarding controller forwards the first part of the to-be-transmitted traffic. The access device transmits a second part of the to-be-transmitted traffic to a first forwarding node, and the first forwarding node forwards the second part of the to-be-transmitted traffic based on received forwarding indication information and forwarding information of the to-be-transmitted traffic.
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公开(公告)号：US20240322912A1
公开(公告)日：2024-09-26
申请号：US18679222
申请日：2024-05-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04B10/6165 , H04J14/02 , H04J14/06 , H04B2210/075
Abstract: Embodiments of this application disclose an optical signal sending method, a pilot receiver, and a transmitter, and relate to the field of optical communication technologies. The method includes: modulating an optical signal in a first state of polarization to obtain a first pilot signal; modulating the optical signal in a second state of polarization to obtain a second pilot signal, where a phase of the first pilot signal is different from a phase of the second pilot signal; and outputting a modulated optical signal. According to this application, this may reduce interference of a pilot signal transferred to an optical signal of another wavelength due to Raman power transfer effect.
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10.发明授权公开(公告)号：US12034486B2
公开(公告)日：2024-07-09
申请号：US17990331
申请日：2022-11-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Guo , Kui Ouyang , Minghui Liu , Shiyi Cao
IPC: H04B10/564 , H04B10/291 , H04B10/294
CPC classification number: H04B10/564 , H04B10/2916 , H04B10/2941
Abstract: A filter includes a first filter component coupled to a second filter component. The first filter component is configured to receive an optical signal, and filter the optical signal based on a first power difference of signals transmitted on a plurality of frequency bands in the optical signal, where the first power difference includes a difference caused by a first doped optical fiber. The second filter component is loaded with a first driving electrical signal used to control a frequency response of the second filter component. The second filter component is configured to filter, using the frequency response based on a second power difference of the signals transmitted on the plurality of frequency bands, an optical signal obtained after the filtering by the first filter component.
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