公开(公告)号：US20200012055A1

公开(公告)日：2020-01-09

申请号：US16572729

申请日：2019-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhicheng YE ,  Jian CHEN ,  Shengping LI

IPC: G02B6/42 ,  G02B6/34 ,  H04J14/02 ,  G02B6/32 ,  H04B10/40 ,  G02B6/293

Abstract: Embodiments relate to the field of optical communications technologies. The bi-directional optical sub-assembly includes a transmitter optical path sub-assembly, a receiver optical sub-assembly, a wavelength division multiplexing sub-assembly, and an optical fiber interface. The transmitter optical path sub-assembly is configured to: generate emitted light and provide the emitted light for the wavelength division multiplexing sub-assembly; the wavelength division multiplexing sub-assembly is configured to: transparently transmit, to the optical fiber interface, the emitted light from the transmitter optical path sub-assembly, and reflect, to the receiver optical sub-assembly, received light from the optical fiber interface; the optical fiber interface is configured to: transmit, to the outside, the emitted light from the wavelength division multiplexing sub-assembly, and transmit, to the wavelength division multiplexing sub-assembly, received light received from the outside; and the receiver optical sub-assembly is configured to receive the received light reflected by the wavelength division multiplexing sub-assembly.

公开(公告)号：US20180343065A1

公开(公告)日：2018-11-29

申请号：US16054388

申请日：2018-08-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengping LI ,  Zhicheng YE ,  Xuming WU

IPC: H04B10/516 ,  H04Q11/00

CPC classification number: H04B10/516 ,  H04B10/27 ,  H04Q11/0005 ,  H04Q11/0067 ,  H04Q2011/0045 ,  H04Q2011/0079

Abstract: Embodiments of the present invention disclose a method for switching a modulation format of a passive optical network, an apparatus, and a system. The method includes: separately delivering, by an OLT, a registration message to an optical network unit in all supported upstream modulation formats and/or downstream modulation formats; receiving, by the OLT, a first message reported by the optical network unit, where the first message includes an upstream modulation format capability and/or a downstream modulation format capability; and determining, by the OLT, a target upstream modulation format and/or a target downstream modulation format of the optical network unit according to the first message, and instructing the optical network unit to switch to the target upstream modulation format and/or the target downstream modulation format. Therefore, in a PON system that supports a plurality of modulation formats, a modulation format reporting capability of the ONU is improved.

公开(公告)号：US20170303020A1

公开(公告)日：2017-10-19

申请号：US15639529

申请日：2017-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhicheng YE ,  Shengping LI ,  Bo GAO

IPC: H04Q11/00 ,  H04J14/02 ,  H04L12/803

CPC classification number: H04Q11/0067 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0223 ,  H04J14/0242 ,  H04J14/0294 ,  H04L47/125 ,  H04Q11/00 ,  H04Q2011/0016 ,  H04Q2011/0081 ,  H04Q2011/0084

Abstract: The invention discloses a communication method includes: receiving, by the ONU by using the first port or the second port, a wavelength switching request message delivered by the OLT, where the wavelength switching request message carries second wavelength channel information and port information that is of the second port; switching, by the ONU, an operating wavelength channel of an optical module connected to the second port from a first wavelength channel to a second wavelength channel corresponding to the second wavelength channel information; and sending, by the ONU, a wavelength switching complete message to the OLT by using the first port. According to the communication method provided in embodiments of the present invention, quick wavelength switching is performed based on the second port, so that a service is not interrupted in a wavelength switching process, and user experience is better.

公开(公告)号：US20160112121A1

公开(公告)日：2016-04-21

申请号：US14982315

申请日：2015-12-29

Applicant: Huawei Technologies Co., Ltd. ,  Wuhan Huagong Genuine Optics Tech Co., Ltd.

Inventor： Zhicheng YE ,  Gongzhi LIU

IPC: H04B10/071 ,  H04B10/2507 ,  G02B6/42

CPC classification number: H04B10/071 ,  G02B6/4207 ,  G02B6/421 ,  G02B6/4214 ,  G02B6/4215 ,  G02B6/4246 ,  G02B6/4285 ,  H04B10/2507 ,  H04B10/40

Abstract: An optical component, including: a component base, a transmitter module connected to the component base, a receiver module, and a pigtail, where: the component base has a cavity, and a wave filtering sheet is provided inside the cavity; the transmitter module is configured to transmit a first optical signal to the pigtail; the receiver module is configured to receive a second optical signal from the pigtail; the wave filtering sheet is configured to transmit the first optical signal transmitted by the transmitter module, to enable the first optical signal to enter the pigtail; and is further configured to reflect the second optical signal received by the pigtail to the receiver module; and a reflecting light guide through-hole is opened on the component base along an optical path direction that the light filtering sheet reflects the first optical signal.

Abstract translation: 一种光学部件，包括：部件基座，连接到部件基座的发射器模块，接收器模块和引线，其中：所述部件基座具有空腔，并且在所述腔体内部设置波形过滤片; 所述发射机模块被配置为将第一光信号发送到所述尾纤; 接收器模块被配置为从引线接收第二光信号; 波滤波器被配置为发送由发射机模块发送的第一光信号，以使第一光信号进入引线; 并且还被配置为将由所述引线接收的所述第二光信号反射到所述接收器模块; 并且反射光导通孔沿着光滤光片反射第一光信号的光路方向在元件基底上开口。

公开(公告)号：US20220255624A1

公开(公告)日：2022-08-11

申请号：US17725373

申请日：2022-04-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dekun LIU ,  Wei LING ,  Zhicheng YE

IPC: H04B10/27 ,  H04B10/25 ,  H04Q11/00

Abstract: The present disclosure relates to information transmission methods in a passive optical network (PON) system. One example method includes sending, by an optical line terminal (OLT), a first power range and time indication to an unregistered optical network unit (ONU), where the first power range and the time indication indicate the ONU to send a serial number of the ONU to the OLT at a time indicated by the time indication in case a downlink receive power of the ONU is within the first power range, and receiving, by the OLT, the serial number of the ONU.

公开(公告)号：US20200350992A1

公开(公告)日：2020-11-05

申请号：US16936212

申请日：2020-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dekun LIU ,  Wei LING ,  Zhicheng YE

IPC: H04B10/27 ,  H04B10/25 ,  H04Q11/00

Abstract: The present disclosure relates to message transmission methods in a PON system. One example method includes sending, by an optical line terminal (OLT), a first message to an unregistered optical network unit (ONU), where the first message includes at least one piece of indication message, and one piece of indication message of the at least one piece of indication message indicates a first power range and a first time range associated with the first power range, and receiving, by the OLT in the first time range, a registration message sent by the ONU, where a downstream receive power of the ONU falls within the first power range.