专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4407894A1 OPTICAL SIGNAL TRANSMISSION METHOD, PILOT RECEIVER, AND TRANSMITTER 审中-实审
公开(公告)号：EP4407894A1
公开(公告)日：2024-07-31
申请号：EP22900040.1
申请日：2022-09-19
申请人： Huawei Technologies Co., Ltd.
发明人： GAN, Lin , GUO, Qiang
IPC分类号： H04B10/516 , H04B10/60 , H04J14/06
CPC分类号： H04J14/02 , H04B10/60 , H04J14/06 , H04B10/516
摘要： 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.

2. 发明公开

EP4170051A1 ALUMINUM ALLOY, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF 审中-实审
公开(公告)号：EP4170051A1
公开(公告)日：2023-04-26
申请号：EP21826605.4
申请日：2021-06-02
申请人： BYD Company Limited , Huawei Technologies Co., Ltd.
发明人： GONG, Qing , GUO, Qiang , WANG, Mengde , WANG, Hua , ZHAI, Yushan , LIU, Xiaorui , HU, Banghong , AN, Wei , FU, Jingsong
IPC分类号： C22C21/02 , C22C1/02 , C22F1/043 , F28F21/08
摘要： An aluminum alloy and a preparation method and application thereof are provided. The aluminum alloy includes, in percentages by weight: 9%-11% of Si, 0.001%-0.2% of Mg, 0.3%-0.7% of Fe, 0.003%-0.04% of Sr, 0.003%-0.03% of B, 0.001%-0.2% of Zn, 0.001%-0.1% of Cu, 0.001%-0.09% of Mn, less than 0.05% of Cr, 0.002%-0.05% of Ga, 0.001%-0.01% of Mo, and the balance of aluminum and other elements, wherein a total amount of the other elements is lower than 0.1%.

3. 发明公开

EP3965380A1 MESSAGE TRAFFIC SENDING METHOD AND APPARATUS 有权
公开(公告)号：EP3965380A1
公开(公告)日：2022-03-09
申请号：EP20822608.4
申请日：2020-06-10
申请人： Huawei Technologies Co., Ltd.
发明人： HUANG, Zhengquan , SHEN, Ningguo , GUO, Qiang , LI, Dakun
IPC分类号： H04L12/709 , H04W28/08
摘要： A method for sending packet traffic is provided. The method includes: 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. The technical solutions provided in this application can implement centralized deployment of a check policy, reduce forwarding pressure of the forwarding controller, reduce detour transmission of traffic, and improve a traffic forwarding rate.

4. 发明公开

EP4318976A1 OPTICAL SIGNAL AMPLIFICATION APPARATUS AND METHOD 审中-实审
公开(公告)号：EP4318976A1
公开(公告)日：2024-02-07
申请号：EP22794506.0
申请日：2022-04-01
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Qiang , ZHOU, Rui , JI, Xiaofan , ZHANG, Lin
IPC分类号： H04B10/291
摘要： This application provides an optical signal amplification apparatus and method, so that gains of different channels in different spatial dimensions are dynamically adjusted based on power configuration information, to compensate for a differential mode gain DMG generated after signal light is amplified through an optical fiber, thereby implementing gain equalization of different channels in different spatial dimensions. The 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 G wavelength channels in 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.

5. 发明公开

EP4325741A1 OPTICAL FIBER MEASUREMENT SYSTEM 审中-实审
公开(公告)号：EP4325741A1
公开(公告)日：2024-02-21
申请号：EP22806248.5
申请日：2022-02-23
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Qiang , ZHOU, Rui , YANG, Zhiqun
IPC分类号： H04B10/071 , H04J14/02
摘要： An optical fiber measurement system is provided. The system may be configured to measure one or a plurality of optical fibers in the field of optical communication. The optical fiber measurement system includes an optical time-domain reflectometer, a wavelength division multiplexer, and a signal generator. The signal generator sends a signal light ray to the wavelength division multiplexer. The optical time-domain reflectometer sends two measurement light rays whose wavelengths are respectively longer than and shorter than a wavelength of the signal light ray to the wavelength division multiplexer. The wavelength division multiplexer combines the two measurement light rays and the signal light ray, sends a combined light ray to an optical fiber, and sends a light ray returned by the optical fiber to the optical time-domain reflectometer, so that the optical time-domain reflectometer determines performance of the optical fiber based on the returned light ray. Through unidirectional transmission of the two measurement light rays whose wavelengths are longer than and shorter than the wavelength of the signal light ray, power of the short-wavelength measurement light ray is transferred to the signal light ray, and power of the signal light ray is transferred to the long-wavelength measurement light ray. This effectively offsets the power transferred between each of the two measurement light rays and the signal light ray during a measurement process and improves accuracy of optical fiber measurement without affecting normal service transmission of the signal light ray.

6. 发明公开

EP4297295A1 DATA RECEIVING METHOD, RECEIVING APPARATUS, AND RELATED DEVICE 审中-实审
公开(公告)号：EP4297295A1
公开(公告)日：2023-12-27
申请号：EP22766208.7
申请日：2022-03-03
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, You , LI, Wei , FENG, Shengwen , GUO, Qiang
IPC分类号： H04B10/2507
摘要： Embodiments of this application disclose a data receiving method, which is applied to a same-wavelength single-fiber bidirectional optical communication system. The 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. In this application, the reconstructed data frame in the mixed signal is eliminated by using the first offset. This can reduce impact of a difference between a time at which the first reflected data frame arrives at the first device and a time at which the second data frame arrives at the first device, thereby improving communication quality.

7. 发明公开

EP4145731A1 FILTER, OPTICAL AMPLIFIER, COMMUNICATION SYSTEM, FILTERING METHOD AND OPTICAL AMPLIFICATION METHOD 有权
公开(公告)号：EP4145731A1
公开(公告)日：2023-03-08
申请号：EP21809674.1
申请日：2021-01-18
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Qiang , OUYANG, Kui , LIU, Minghui , CAO, Shiyi
IPC分类号： H04J14/02 , H04B10/294
摘要： A filter, an optical amplifier, a communication system, a filtering method, an optical amplification method, and a storage medium are provided. The filter includes a first filter component (112a) and a second filter component (112b) that are coupled. The first filter component (112a) 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 (112b) is loaded with a first driving electrical signal, the first driving electrical signal is used to control a frequency response of the second filter component (112b), and the second filter component (112b) is configured to filter, by 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 (112a), where the second power difference includes a difference caused by a stimulated Raman scattering effect. The filter ensures signal quality of the transmitted optical signal.

8. 发明公开

EP4250606A1 OPTICAL AMPLIFICATION APPARATUS AND MODE DIVISION MULTIPLEXING SYSTEM COMPRISING OPTICAL AMPLIFICATION APPARATUS 审中-实审
公开(公告)号：EP4250606A1
公开(公告)日：2023-09-27
申请号：EP21902721.6
申请日：2021-12-10
申请人： Huawei Technologies Co., Ltd.
发明人： GUO, Qiang , ZHOU, Rui , YANG, Zhiqun , XU, Tao , LIU, Yaping , ZHANG, Lin
IPC分类号： H04J14/04
摘要： Embodiments of this application disclose an optical amplification apparatus and a mode division multiplexing system including an optical amplification apparatus, relate to the optical communication field, and are applied to a mode division multiplexing optical transmission system. The optical amplification apparatus includes a first optical amplifier, a second optical amplifier, and a mode exchanger. The first optical amplifier is connected to an input port of the mode exchanger, and the second optical amplifier is connected to an output port of the mode exchanger. The first optical amplifier is configured to amplify optical signals carried in a plurality of transmission modes of a few-mode fiber, the plurality of transmission modes of the few-mode fiber may be grouped into N groups, each group includes two transmission modes, and N is a positive integer greater than or equal to 1. The mode exchanger is configured to exchange the two transmission modes carrying optical signals in each group. The second optical amplifier is configured to amplify the optical signals that are carried in the two transmission modes in each group and whose modes are exchanged.

9. 发明公开

EP4054028A1 FIBER AMPLIFIER 审中-公开
公开(公告)号：EP4054028A1
公开(公告)日：2022-09-07
申请号：EP20907255.2
申请日：2020-11-05
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Lin , LIU, Yaping , YANG, Zhiqun , GUO, Qiang , ZHOU, Rui
IPC分类号： H01S3/067 , H01S3/091 , H01S3/16
摘要： 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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式