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公开(公告)号：US20220360356A1
公开(公告)日：2022-11-10
申请号：US17814324
申请日：2022-07-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huafeng Lin , Wei Ling , Xiaofei Zeng
IPC: H04J14/02 , H04B10/294 , H04B10/572 , H04Q11/00
Abstract: Embodiments of this application provide an OLT, an ONU, and a system. In a downlink direction, the first OLT is configured to convert received downlink data packets of M1 paths into one downlink optical signal whose wavelength is λo, and the first ONU is configured to receive the downlink optical signal, and output a target user data packet after processing the downlink optical signal. In an uplink direction, the first ONU is configured to convert received uplink data packets into an uplink optical signal whose wavelength is λi, and the first OLT is configured to receive a plurality of uplink optical signals of different wavelengths, and output user data packets of a corresponding quantity of paths after processing.
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公开(公告)号：US10948672B2
公开(公告)日：2021-03-16
申请号：US15462492
申请日：2017-03-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Min Zhou , Ning Cheng , Zhenxing Liao , Huafeng Lin
Abstract: A material for blocking crosstalk, an optical assembly, and a method for preparing the material are provided. The optical assembly includes an optical receive assembly, where a periphery of the optical receive assembly includes a transparent region and a non-transparent region; the transparent region is made of the material, where a first layer of film is located on a side opposite to an optical receiving direction, and a second layer of film is located on a side opposite to the optical receive assembly; and the non-transparent region is of an electrical-signal shielding structure.
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公开(公告)号：US10178817B2
公开(公告)日：2019-01-08
申请号：US15420972
申请日：2017-01-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Min Zhou , Huafeng Lin , Zhenxing Liao
Abstract: Embodiments provide an electromagnetic shielding material and a method for packaging an optical module, where the electromagnetic shielding material includes an electromagnetic shield layer. The electromagnetic shield layer includes an external flux guide layer, an insulation medium layer, and an internal flux guide layer. The external flux guide layer is of a mesh structure, and each mesh forms a first guiding unit. The first guiding unit is of a tapered structure, and the guiding unit forms a first included angle with a horizontal direction. The first included angle is greater than 0 degrees and less than 90 degrees. A cross section of the electromagnetic shield layer is in a sawtooth shape.
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公开(公告)号：US20180213307A1
公开(公告)日：2018-07-26
申请号：US15909624
申请日：2018-03-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huafeng Lin , Dekun Liu
CPC classification number: H04Q11/0067 , H04J14/0236 , H04J14/0278 , H04J14/0282 , H04Q2011/0086 , H04Q2011/0088
Abstract: A communication method, apparatus, and system for a passive optical network (PON). The PON includes an optical line terminal (OLT) and a first optical network unit (ONU), where the method includes communicating, by the OLT, with the first ONU using one downlink wavelength (λdx), where the λdx is any one of N downlink wavelengths λd1 to λdN, and communicating, by the OLT, with the first ONU using one uplink wavelength (λu0), where the λu0 is different from any one of M uplink wavelengths λu1 to λuM. The N downlink wavelengths λd1 to λdN and the M uplink wavelengths λu1 to λuM are wavelength values configured for a second ONU, N and M are both integers greater than or equal to 2, and x is any value from 1 to M. Therefore, complexity and costs of the PON system are reduced.
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5.发明公开
公开(公告)号：US20240014896A1
公开(公告)日：2024-01-11
申请号：US18472596
申请日：2023-09-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huafeng Lin , Xifeng Wan , Shu Li
IPC: H04B10/071
CPC classification number: H04B10/071
Abstract: This application discloses an optical splitting apparatus, an optical splitting system, a passive optical network, and an optical fiber fault detection method. The optical splitting apparatus includes a first optical splitting unit, a plurality of first optical path processing units, and a second optical path processing unit. The first optical splitting unit includes a first port and a plurality of second ports, and the first port is separately connected to the plurality of second ports.
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公开(公告)号：US11063783B2
公开(公告)日：2021-07-13
申请号：US16413811
申请日：2019-05-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guikai Peng , Huafeng Lin , Shiwei Nie , Xuming Wu , Liming Fang , Yinghua Dong
Abstract: A passive optical network communication method, including receiving an Ethernet packet carrying an optical network unit identifier, determining a correspondence between the optical network unit identifier and an optical network unit type according to the optical network unit identifier, determining that an optical network unit that receives the Ethernet packet is a first type of optical network unit, where the optical network unit type includes the first and second type of optical network unit, and a packet receiving rate of the first type is different from that of the second type, determining a correspondence between the optical network unit type and a channel according to the first type, determining a channel corresponding to the first type, encapsulating the Ethernet packet into a gigabit-capable passive optical network encapsulation method (GEM) frame, and sending the GEM frame to the first type of optical network unit using the determined channel.
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公开(公告)号：US09793998B2
公开(公告)日：2017-10-17
申请号：US15082515
申请日：2016-03-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Min Zhou , Huafeng Lin , Lei Zhou , Zhenxing Liao
IPC: H04B10/00 , H04B10/50 , H01S3/30 , H01S3/00 , H04B10/548 , H04B10/2537 , H01S3/23
CPC classification number: H04B10/50577 , H01S3/005 , H01S3/0057 , H01S3/2308 , H01S3/30 , H01S3/302 , H04B10/2537 , H04B10/548
Abstract: An optical transmit system, including a direct modulator configured to generate an optical signal, an optical amplifier coupled to the direct modulator configured to amplify the optical signal output by the direct modulator, and a stimulated Brillouin scattering component coupled to the optical amplifier configured to limit optical power of the optical signal output by the optical amplifier, where a stimulated Brillouin scattering threshold of the stimulated Brillouin scattering component is equal to minimum optical power of a part, which needs to be limited, of the optical signal output by the optical amplifier, and the stimulated Brillouin scattering component reflects, using a stimulated Brillouin scattering frequency difference, a part, which has optical power higher than the minimum optical power, of the optical signal output by the optical amplifier in order to limit outputting of this part of the optical signal.
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公开(公告)号：US20170142871A1
公开(公告)日：2017-05-18
申请号：US15420972
申请日：2017-01-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Min Zhou , Huafeng Lin , Zhenxing Liao
CPC classification number: H05K9/0086 , G02B6/4277 , H05K9/00 , H05K9/0058 , H05K9/0088
Abstract: Embodiments provide an electromagnetic shielding material and a method for packaging an optical module, where the electromagnetic shielding material includes an electromagnetic shield layer. The electromagnetic shield layer includes an external flux guide layer, an insulation medium layer, and an internal flux guide layer. The external flux guide layer is of a mesh structure, and each mesh forms a first guiding unit. The first guiding unit is of a tapered structure, and the guiding unit forms a first included angle with a horizontal direction. The first included angle is greater than 0 degrees and less than 90 degrees. A cross section of the electromagnetic shield layer is in a sawtooth shape.
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公开(公告)号：US20230319448A1
公开(公告)日：2023-10-05
申请号：US18323802
申请日：2023-05-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huafeng Lin , Yuanmou Li , Weihua Wang
IPC: H04Q11/00
CPC classification number: H04Q11/0067 , H04Q2011/0088
Abstract: An OLT performs interactive authentication with an optical module, and determines a time sequence parameter of the optical module. The optical module stores the time sequence parameter in a register of the optical module. When the optical module is inserted into the OLT and is in a working state, the OLT reads the time sequence parameter stored in the optical module. Then, based on the time sequence parameter, the OLT determines and configures time sequence information of an ONU corresponding to the optical module.
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10.发明授权
公开(公告)号：US11515943B2
公开(公告)日：2022-11-29
申请号：US17365756
申请日：2021-07-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Zhang , Huafeng Lin , Yuanmou Li , Xiaoyuan Wu , Jun Zhang
Abstract: This application provides example optical communications apparatuses. One example optical communications apparatus includes a control apparatus and an optical module matching apparatus. The control apparatus can output a first control signal to the control end. An input end of the optical module matching apparatus can connect to a first optical module and receive a first electrical signal output by the first optical module. An output end of the optical module matching apparatus can output a first serial signal. The control apparatus can output a second control signal to the control end. The input end of the optical module matching apparatus can receive a second electrical signal output by the second optical module. The output end of the optical module matching apparatus can output a second serial signal. The first electrical signal and the second electrical signal can have different level types.
