公开(公告)号：US20240014626A1

公开(公告)日：2024-01-11

申请号：US18471930

申请日：2023-09-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yehui Liu ,  Shiyi Cao ,  Jinyan Li

IPC: H01S3/16 ,  H01S3/067

CPC classification number: H01S3/1608 ,  H01S3/06716

Abstract: An erbium-doped optical fiber includes a fiber core, where the fiber core includes erbium ions, aluminum ions, phosphorus ions, lanthanum ions, antimony ions, and silicon ions. A mass percentage of the erbium ions ranges from 0.25 percentage by weight (wt %) to 0.6 wt %, a mass percentage of the aluminum ions ranges from 3 wt % to 6 wt %, a mass percentage of the phosphorus ions ranges from 7 wt % to 16 wt %, a mass percentage of lanthanum ions ranges from 0.5 wt % to 1.2 wt %, a mass percentage of antimony ions ranges from 1 wt % to 5 wt %, and a mass percentage of silicon ions is greater than 60 wt %.

公开(公告)号：US10462028B2

公开(公告)日：2019-10-29

申请号：US15210457

申请日：2016-07-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyi Cao

IPC: H04L12/26 ,  H04L12/911 ,  H04L29/06

Abstract: An Ethernet signal transport method includes: inserting, by a first network device, path monitoring information into a position that is a preset bit length away from an alignment marker (AM) in a physical coding sublayer lane (PCSL) of an Ethernet signal; and sending, by the first network device to at least one second network device, a signal bearing the PCSL into which the path monitoring information is inserted.

公开(公告)号：US20160066071A1

公开(公告)日：2016-03-03

申请号：US14938614

申请日：2015-11-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyi Cao

IPC: H04Q11/00

CPC classification number: H04Q11/0003 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/002 ,  H04Q2011/0033 ,  H04Q2011/0039 ,  H04Q2011/0045 ,  H04Q2011/005

Abstract: The present invention provides a receiving device and an optical switching fabric apparatus, where the receiving device includes: multiple selecting modules, a fast optical switch connecting to each selecting module, an output module connecting to all the fast optical switches, and a receiver connecting to the output module, where the selecting module is configured to receive a multiwavelength optical signal, select and filter a first optical signal of a preset time segment in the multiwavelength optical signal; the fast optical switch is configured to select a second optical signal from the first optical signal filtered by the selecting module; the output module is configured to combine optical signals separately selected by all the fast optical switches into one optical burst signal; and the receiver is configured to perform optical-to-electrical conversion on the optical burst signal, and extract service data from an electrical signal.

Abstract translation: 本发明提供一种接收装置和光交换结构装置，其中接收装置包括：多个选择模块，连接到每个选择模块的快速光学开关，连接到所有快速光学开关的输出模块，以及连接到 所述输出模块，其中所述选择模块被配置为接收多波长光信号，在所述多波长光信号中选择和滤波预设时间段的第一光信号; 快速光开关被配置为从由选择模块滤波的第一光信号中选择第二光信号; 输出模块被配置为将由所有快速光开关分别选择的光信号组合成一个光突发信号; 并且所述接收器被配置为对所述光突发信号执行光电转换，并且从电信号提取服务数据。

公开(公告)号：US12199677B2

公开(公告)日：2025-01-14

申请号：US17239872

申请日：2021-04-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shiyi Cao

IPC: H04B10/297 ,  H01S3/067 ,  H04B10/2537 ,  H04B10/40 ,  H04B10/071

Abstract: An optical signal processing method and apparatus. The method includes: obtaining a first sending signal, where the first sending signal is a signal that is sent by a first transmitter to a second receiver through a first optical fiber; determining estimation information of a backward optical signal based on the first sending signal; the backward optical signal is generated during transmission of the first sending signal, the backward optical signal is transmitted through at least one fiber section in the first optical fiber, and a transmission direction of the backward optical signal is opposite to a transmission direction of the first sending signal; and obtaining a second sending signal based on the estimation information of the backward optical signal. According to the embodiments, impact of the backward optical signal on effective signal transmission can be reduced, and a signal-to-noise ratio can be improved.

公开(公告)号：US12092865B2

公开(公告)日：2024-09-17

申请号：US18071485

申请日：2022-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shiyi Cao ,  Zhiwu Chang

IPC: G02B6/12

CPC classification number: G02B6/12033 ,  G02B6/12016 ,  G02B2006/12164

Abstract: Example gratings, grating characteristic adjustment methods and devices are provided. One example grating includes a first optical waveguide region, a second optical waveguide region, and an arrayed waveguide region comprising a plurality of optical waveguides, where the first optical waveguide region is connected to the arrayed waveguide region, and the second optical waveguide region is connected to the arrayed waveguide region. The grating has at least one of the following characteristics: a refractive index of an optical waveguide in the first optical waveguide region can be changed, a refractive index of an optical waveguide in the second optical waveguide region can be changed, a refractive index of an optical waveguide in the arrayed waveguide region can be changed, or an optical waveguide in an arrayed waveguide region can be eliminated.

公开(公告)号：US20180198550A1

公开(公告)日：2018-07-12

申请号：US15914716

申请日：2018-03-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ning Deng ,  Shiyi Cao ,  Jun Luo

IPC: H04J14/02 ,  H04Q11/00 ,  H04B10/2581 ,  H04B10/275

CPC classification number: H04J14/0205 ,  H04B10/2581 ,  H04B10/275 ,  H04J14/0212 ,  H04J14/0213 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0009

Abstract: A node in a wavelength division multiplexing (WDM) system is provided, which includes: a colorless optical transmitter, a first arrayed waveguide grating, a first waveband filter configured to divide an input optical signal into M sub-signals of different wavebands and output to a first optical switch, and a first optical coupler/a first optical combiner. A transmit end of the colorless optical transmitter is coupled to an input end of the first waveband filter via the first arrayed waveguide grating. The first optical switch is configured to connect an output end of the first waveband filter to an input end of the first optical coupler/the first optical combiner according to a control signal. An output end of the first optical coupler/the first optical combiner is coupled to an optical transmission path.

公开(公告)号：US09749720B2

公开(公告)日：2017-08-29

申请号：US14938614

申请日：2015-11-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyi Cao

IPC: H04Q11/00 ,  H04J14/02 ,  H04J14/08 ,  H04J14/00

CPC classification number: H04Q11/0003 ,  H04J14/00 ,  H04J14/02 ,  H04J14/08 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/002 ,  H04Q2011/0033 ,  H04Q2011/0039 ,  H04Q2011/0045 ,  H04Q2011/005

Abstract: The present invention provides a receiving device and an optical switching fabric apparatus, where the receiving device includes: multiple selecting modules, a fast optical switch connecting to each selecting module, an output module connecting to all the fast optical switches, and a receiver connecting to the output module, where the selecting module is configured to receive a multiwavelength optical signal, select and filter a first optical signal of a preset time segment in the multiwavelength optical signal; the fast optical switch is configured to select a second optical signal from the first optical signal filtered by the selecting module; the output module is configured to combine optical signals separately selected by all the fast optical switches into one optical burst signal; and the receiver is configured to perform optical-to-electrical conversion on the optical burst signal, and extract service data from an electrical signal.

公开(公告)号：US20130215898A1

公开(公告)日：2013-08-22

申请号：US13847329

申请日：2013-03-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD

Inventor： Shiyi Cao

IPC: H04J14/02

CPC classification number: H04J14/0227 ,  H04J3/1652 ,  H04J14/0258 ,  H04J14/0273 ,  H04J14/0284 ,  H04J2203/0053 ,  H04L45/50 ,  H04L49/357

Abstract: Embodiments of the present disclosure disclose a service transmission method and a device and a system for implementing the method. The method includes: recognizing a type of a received client service, encapsulating an OTN service, and generating an OTN signal frame or a lower order ODU; querying a tag forwarding base to acquire forwarding information of the OTN signal frame or the lower order ODU; acquiring tag information, and inserting the tag information into an overhead of the OTN signal frame or the lower order ODU; and forwarding the OTN signal frame according to the forwarding information. Therefore, in the embodiments of the present disclosure, the forwarding and the transmission of the service may be performed in an OTN plane only, thereby reducing hardware modules of an MPLS plane.

Abstract translation: 本公开的实施例公开了一种服务传输方法以及用于实现该方法的设备和系统。 该方法包括：识别接收的客户端业务的类型，封装OTN业务，生成OTN信号帧或低阶ODU; 查询标签转发基地以获取OTN信号帧或低阶ODU的转发信息; 获取标签信息，并将标签信息插入到OTN信号帧或低阶ODU的开销中; 并根据转发信息转发OTN信号帧。 因此，在本公开的实施例中，服务的转发和传输可以仅在OTN平面中执行，从而减少MPLS平面的硬件模块。

公开(公告)号：US11360335B2

公开(公告)日：2022-06-14

申请号：US16890444

申请日：2020-06-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shiyi Cao

IPC: G02F1/035 ,  G02F1/313 ,  G02F1/13

Abstract: An optical waveguide apparatus, a control method for the optical waveguide apparatus, and a storage medium are described in the disclosure. In one example implementation, an optical waveguide apparatus includes a control component and a waveguide structure. The waveguide structure includes m input interfaces and n output interfaces, where both m and n are integers greater than 1. The waveguide structure includes a first waveguide layer and a second waveguide layer, where an optical waveguide exists in the second waveguide layer. The control component is configured to control the first waveguide layer to form an optical waveguide, and the optical waveguide and an optical waveguide in the second waveguide layer form a cross-layer optical signal path.

公开(公告)号：US10530515B2

公开(公告)日：2020-01-07

申请号：US15914716

申请日：2018-03-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ning Deng ,  Shiyi Cao ,  Jun Luo

IPC: H04J14/02 ,  H04B10/2581 ,  H04B10/275 ,  H04Q11/00

Abstract: A node in a wavelength division multiplexing (WDM) system is provided, which includes: a colorless optical transmitter, a first arrayed waveguide grating, a first waveband filter configured to divide an input optical signal into M sub-signals of different wavebands and output to a first optical switch, and a first optical coupler/a first optical combiner. A transmit end of the colorless optical transmitter is coupled to an input end of the first waveband filter via the first arrayed waveguide grating. The first optical switch is configured to connect an output end of the first waveband filter to an input end of the first optical coupler/the first optical combiner according to a control signal. An output end of the first optical coupler/the first optical combiner is coupled to an optical transmission path.