公开(公告)号：US11374674B2

公开(公告)日：2022-06-28

申请号：US16988066

申请日：2020-08-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huafeng Lin ,  Jinrong Yin ,  Dianbo Zhao ,  Xifeng Wan ,  Shiwei Nie ,  Gang Zheng ,  Zhijing Luo ,  Xiaofei Zeng ,  Jun Luo

IPC: H04J14/02

Abstract: The present disclosure relates to passive optical network (PON) systems, an optical line terminal (OLT), and an optical network unit (ONU). One example PON system includes an OLT and at least two ONUs, and the OLT and the ONUs exchange data on one downstream channel and two upstream channels. The OLT sends downstream data to each ONU on the downstream channel, where the downstream data includes an upstream bandwidth grant which is used to control the ONU to send upstream data. Each ONU receives the downstream data on the downstream channel, and sends the upstream data on a first upstream channel or a second upstream channel based on the upstream bandwidth grant included in the downstream data. The OLT receives, on the first upstream channel and the second upstream channel, the upstream data sent by each ONU.

公开(公告)号：US20190273634A1

公开(公告)日：2019-09-05

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

IPC: H04L12/46 ,  H04J14/02 ,  H04B10/27 ,  H04B10/60

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.

公开(公告)号：US10128970B2

公开(公告)日：2018-11-13

申请号：US15187437

申请日：2016-06-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yue Wen ,  Zhiguang Xu ,  Huafeng Lin ,  Xiaoping Zhou ,  Jing Hu

IPC: G02B6/30 ,  H04J14/02 ,  G02B6/42 ,  G02B6/293 ,  H04B10/27 ,  H04B10/40 ,  H04B10/50

Abstract: A circuit board of the optical module comprises: a first electrical interface is configured to connect an electrical interface of a board or a second electrical interface of another optical module, and a second electrical interface is configured to connect a first electrical interface of another optical module; a first optical port is configured to connect an optical transmission device or a second optical port of another optical module, and a second optical port is configured to connect an optical receiving device or a first optical port of another optical module; and a optical transceiver assembly multiplexes downstream light and demultiplexes upstream light. The optical module provided in solutions of the present invention can be flexibly combined with another optical module, enabling flexible and gradual upgrade of an optical module bandwidth according to a user requirement by using various combination manners.

公开(公告)号：US20180077475A1

公开(公告)日：2018-03-15

申请号：US15818108

申请日：2017-11-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Ye ,  Dianbo Zhao ,  Guikai Peng ,  Huafeng Lin ,  Ning Cheng ,  Xiaofeng Zhang ,  Dajiang Tang ,  Zhenping Wang

IPC: H04Q11/00

CPC classification number: H04Q11/0067 ,  H04B10/272 ,  H04J14/00 ,  H04Q11/0003 ,  H04Q11/0005 ,  H04Q2011/0049 ,  H04Q2011/0088 ,  H04Q2213/13168

Abstract: A framing method and apparatus in a passive optical network (PON) and a system, where the method includes generating a first transmission convergence (TC) frame and a second TC frame separately, wherein a sum of frame lengths of the first and the second TC frame is 125 microseconds (μs), performing bit mapping on the second TC frame to generate a third TC frame, where the bit mapping refers to identifying each bit of the second TC frame using N bits, and sending the first and the second TC frame to an optical network unit (ONU). A line rate corresponding to the second TC frame is lower than 2.488 giga bits per second (Gbps) such that a rate of a receiver on a receiving side is decreased and a bandwidth of the receiver is narrowed, thereby decreasing an optical link loss and increasing an optical power budget.

公开(公告)号：US09678277B2

公开(公告)日：2017-06-13

申请号：US14952688

申请日：2015-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Zhou ,  Lei Wang ,  Huafeng Lin ,  Zhenxing Liao

IPC: H04B10/00 ,  G02B6/293 ,  C23C18/16 ,  G02B27/14 ,  G02B27/30 ,  H04B10/079 ,  H04B10/25 ,  G02B6/42 ,  G02B1/11

CPC classification number: G02B6/29361 ,  C23C18/1633 ,  G02B1/11 ,  G02B6/4215 ,  G02B6/4286 ,  G02B27/141 ,  G02B27/30 ,  H04B10/07957 ,  H04B10/2504

Abstract: A filter includes two translucent bodies. Each of the translucent bodies has a first plane, a second plane that forms a wedge angle with the first plane, and a third plane that intersects with both the first plane and the second plane, first planes of the two translucent bodies are parallel to each other, and second planes of the two translucent bodies are parallel to each other. The filter also comprises a beam splitting film, where surfaces of both sides are respectively combined with the first planes of the two translucent bodies. Two reflective films are combined, respectively, with the second planes of the two translucent bodies.

公开(公告)号：US20160241342A1

公开(公告)日：2016-08-18

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: H04B10/50 ,  H01S3/00 ,  H04B10/548 ,  H01S3/30

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.

Abstract translation: 一种光发射系统，包括被配置为产生光信号的直接调制器，耦合到配置成放大由直接调制器输出的光信号的直接调制器的光放大器，以及被耦合到光放大器的受激布里渊散射分量， 由光放大器输出的光信号的光功率，其中受激布里渊散射分量的受激布里渊散射阈值等于由光放大器输出的光信号的部分的最小光功率，其需要被限制， 并且受激布里渊散射分量使用受激布里渊散射频率差反射由光放大器输出的光信号的光功率高于最小光功率的部分，以限制该部分光学器件的输出 信号。

公开(公告)号：US20160085028A1

公开(公告)日：2016-03-24

申请号：US14952688

申请日：2015-11-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Zhou ,  Lei Wang ,  Huafeng Lin ,  Zhenxing Liao

IPC: G02B6/293 ,  G02B6/42 ,  H04B10/25 ,  C23C18/16 ,  H04B10/079 ,  G02B27/14 ,  G02B27/30

CPC classification number: G02B6/29361 ,  C23C18/1633 ,  G02B1/11 ,  G02B6/4215 ,  G02B6/4286 ,  G02B27/141 ,  G02B27/30 ,  H04B10/07957 ,  H04B10/2504

Abstract: A filter includes two translucent bodies. Each of the translucent bodies has a first plane, a second plane that forms a wedge angle with the first plane, and a third plane that intersects with both the first plane and the second plane, first planes of the two translucent bodies are parallel to each other, and second planes of the two translucent bodies are parallel to each other. The filter also comprises a beam splitting film, where surfaces of both sides are respectively combined with the first planes of the two translucent bodies. Two reflective films are combined, respectively, with the second planes of the two translucent bodies.

Abstract translation: 过滤器包括两个半透明体。 每个半透明体具有第一平面，与第一平面形成楔角的第二平面和与第一平面和第二平面两者相交的第三平面，两个半透明体的第一平面平行于每个 两个半透明体的其他和第二平面彼此平行。 滤光器还包括分束膜，其两侧的表面分别与两个半透明体的第一平面组合。 两个反射膜分别与两个半透明体的第二平面组合。

公开(公告)号：US09059563B2

公开(公告)日：2015-06-16

申请号：US14163196

申请日：2014-01-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhiguang Xu ,  Dekun Liu ,  Huafeng Lin

IPC: H01S3/30 ,  H01S3/10 ,  H01S5/14 ,  H01S3/067 ,  H01S5/042 ,  H01S5/065 ,  H04B10/272 ,  H04B10/50 ,  H01S5/40 ,  H04J14/02

CPC classification number: H01S3/10084 ,  H01S3/067 ,  H01S5/0427 ,  H01S5/0656 ,  H01S5/14 ,  H01S5/141 ,  H01S5/146 ,  H01S5/4087 ,  H04B10/272 ,  H04B10/506 ,  H04J14/0282

Abstract: This application provides a self-seeding fiber laser, including: an arrayed waveguide grating; a gain medium, coupled to one branch port of the arrayed waveguide grating; a Faraday rotator mirror, coupled to a common port of the arrayed waveguide grating, and configured to reflect a part of optical signals transmitted by the gain medium and form injection light returning to the gain medium; where the gain medium, the arrayed waveguide grating, and the Faraday rotator mirror form a laser resonator, and the arrayed waveguide grating is configured to perform wavelength selection in the laser resonator; and a compensation apparatus, coupled to the gain medium and configured to provide a compensation current for the gain medium selectively according to power of the injection light.

Abstract translation: 该应用提供了一种自播光纤激光器，包括：阵列波导光栅; 增益介质，耦合到阵列波导光栅的一个分支端口; 耦合到阵列波导光栅的公共端口的法拉第旋转镜，并且被配置为反射由增益介质传输的一部分光信号，并形成返回到增益介质的注入光; 其中增益介质，阵列波导光栅和法拉第旋转镜形成激光谐振器，并且阵列波导光栅被配置为在激光谐振器中执行波长选择; 以及补偿装置，其耦合到所述增益介质并且被配置为根据所述注入光的功率选择性地为所述增益介质提供补偿电流。

公开(公告)号：US12107666B2

公开(公告)日：2024-10-01

申请号：US17727492

申请日：2022-04-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Enyu Zhou ,  Lei Jing ,  Xiaofei Zeng ,  Huafeng Lin

IPC: H04J14/00 ,  H04J14/02

CPC classification number: H04J14/0204 ,  H04J14/0245 ,  H04J14/0258 ,  H04J14/0267

Abstract: This application provides a port detection method, an optical network device, and a passive optical network system, to quickly and accurately detect a port connected to an ONU, and improve efficiency of determining the port connected to the ONU. The method includes: an optical line terminal sends optical signals corresponding to all of N wavelengths to at least one optical network unit, where the N wavelengths are different from each other, and N is a positive integer; the OLT receives optical power values that are of the optical signals corresponding to all of the N wavelengths and that are sent by a first ONU, where the first ONU is any one of the at least one ONU; and the OLT determines, bases on the optical power values of the optical signals corresponding to all of the N wavelengths, information about an optical splitter port corresponding to the first ONU.

公开(公告)号：US11711152B2

公开(公告)日：2023-07-25

申请号：US17722907

申请日：2022-04-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Jing ,  Junye Jin ,  Tianhai Chang ,  Shengping Li ,  Yuanbing Cheng ,  Huafeng Lin

IPC: H04B10/00 ,  H04B10/67 ,  H04J14/00

CPC classification number: H04B10/672

Abstract: Example optical devices are described. One example optical device includes a receiver. The receiver includes a photodetector, a first amplifier, a second amplifier, and a controller, where the photodetector is coupled to the first amplifier, the first amplifier is coupled to the second amplifier, and the first amplifier and the second amplifier are separately coupled to the controller. The controller is configured to control a gain of the first amplifier and a gain of the second amplifier based on a preset arrival time of an optical signal and a gain intensity corresponding to the optical signal. The photodetector is configured to receive the optical signal and convert the optical signal into a current signal. The first amplifier is configured to convert the current signal into a first voltage signal. The second amplifier is configured to convert the first voltage signal into a second voltage signal.