公开(公告)号：US11689308B2

公开(公告)日：2023-06-27

申请号：US17653806

申请日：2022-03-07

申请人： Cox Communications, Inc.

发明人： Harjinder S. Ghuman

IPC分类号： H04J14/02 ,  H04Q11/00 ,  H04B10/61

CPC分类号： H04J14/02 ,  H04Q11/0005 ,  H04B10/61 ,  H04J14/0242 ,  H04J14/0287

摘要： This disclosure describes devices and methods related to multiplexing optical data signals. A method may be disclosed. The method may comprise receiving, by a dense wave division multiplexer (DWDM), one or more optical data signals. The method may comprise combining, by the DWDM, the one or more optical data signals. The method may comprise outputting, by the DWDM, the combined one or more optical data signals to a first circulator. The method may also comprise combining, by the WDM, the second optical data signal and one or more third signals, and outputting an egress optical data signal to an optical switch. The method may also comprise outputting, by the optical switch, the egress optical data signal on a primary fiber.

公开(公告)号：US09866318B2

公开(公告)日：2018-01-09

申请号：US15264286

申请日：2016-09-13

申请人： Huawei Technologies Co., Ltd.

发明人： Heng Wang ,  Zhiguang Xu ,  Enyu Zhou

IPC分类号： H04B17/00 ,  H04B10/079 ,  H04B10/071 ,  H04B10/272 ,  H04B10/564 ,  H04B10/50 ,  H04J14/02

CPC分类号： H04B10/07955 ,  H04B10/071 ,  H04B10/272 ,  H04B10/503 ,  H04B10/5057 ,  H04B10/564 ,  H04B10/572 ,  H04J14/0221 ,  H04J14/0242 ,  H04J14/0282

摘要： A method includes monitoring a power value of output light of the laser and a power value of reflected light, obtaining an insertion loss value according to the power value of the output light, the power value of the reflected light, and a parameter of a Faraday rotation reflector, obtaining a bias current value according to the insertion loss value, and adjusting the power value of the output light of the laser using the bias current value. The insertion loss value is obtained by detecting the power value of the reflected light obtained after the output light of the laser is reflected. Because the insertion loss value is a power loss value, of the output light of the laser, on a one-way link between the laser and the Faraday rotation mirror.

公开(公告)号：US20170317778A1

公开(公告)日：2017-11-02

申请号：US15655307

申请日：2017-07-20

申请人： Google Inc.

发明人： Cedric Fung Lam ,  Liang Du ,  Changhong Joy Jiang ,  Ben Warren Segura ,  Xiangjun Zhao ,  Daoyi Wang

IPC分类号： H04J14/02 ,  H04J14/08 ,  H04Q11/00 ,  H04B10/25

CPC分类号： H04J14/0247 ,  H04B10/2503 ,  H04J14/0221 ,  H04J14/0223 ,  H04J14/0242 ,  H04J14/0265 ,  H04J14/0282 ,  H04J14/08 ,  H04Q11/0067

摘要： A communication system includes a first multiplexer configured to multiplex a first optical line terminal signal having a first multiplexing group and a second optical line terminal signal having a second multiplexing group into a first multiplexed signal. The communication system includes a second multiplexer configured to demultiplex a second multiplexed signal into a third optical line terminal signal having the first multiplexing group and a fourth optical line terminal signal having the second multiplexing group. Moreover, the communication system includes a third multiplexer optically connected with the first multiplexer and the second multiplexer, the third multiplexer configured to multiplex/demultiplex between a feeder optical signal and the first and second multiplexed signals. The first and second optical line terminal signals include a legacy upstream free spectral range, and the third and fourth optical line terminal signals include a legacy downstream free spectral range.

公开(公告)号：US09712241B2

公开(公告)日：2017-07-18

申请号：US14377356

申请日：2013-01-15

申请人： Hiroaki Mukai ,  Koshi Sugimura

发明人： Hiroaki Mukai ,  Koshi Sugimura

IPC分类号： H04J14/02 ,  H04B10/27 ,  H04B10/272 ,  H04L12/12 ,  H04L12/403

CPC分类号： H04B10/27 ,  H04B10/272 ,  H04J14/0242 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0282 ,  H04L12/12 ,  H04L12/403 ,  Y02D50/40

摘要： A communication system in which a master station device is connected to a plurality of slave station devices by an optical transmission line and a plurality of wavelengths are used to perform at least one of downstream communication and upstream communication. The master station device includes: a control unit that assigns a wavelength to be used in communication to the slave station device, and that generates a control signal for notifying the slave station device of the assigned wavelength; and an optical transmitter that transmits the control signal generated by the control unit to the slave station device. The slave station device includes an optical receiver and an optical transmitter that carry out communication with the master station device using the wavelength based on the control signal received from the master station device.

公开(公告)号：US09692546B2

公开(公告)日：2017-06-27

申请号：US14885060

申请日：2015-10-16

申请人： Google Inc.

发明人： Cedric Fung Lam ,  Yut Loy Chan

IPC分类号： H04J14/02 ,  H04B10/20 ,  H04Q11/00

CPC分类号： H04J14/0242 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0265 ,  H04J14/0282 ,  H04J2014/0253 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0086

摘要： A method of processing optical signals in a passive optical network includes receiving a first signal in a first optical spectrum, and receiving a second signal in a second optical spectrum. The second optical spectrum is different from the first optical spectrum. The method also includes multiplexing the first and second signals into a first multiplexed signal and outputting the first multiplexed signal. The method also includes receiving a second multiplexed signal, and demultiplexing the second multiplexed signal into a third signal and a fourth signal. The third signal is in the second optical spectrum and the fourth signal is in the first optical spectrum. The method also includes outputting the third and fourth signals.

公开(公告)号：US09654218B2

公开(公告)日：2017-05-16

申请号：US14221414

申请日：2014-03-21

申请人： Trilithic, Inc.

发明人： Terry W. Bush ,  Gary W. Sinde ,  John J. Bush

IPC分类号： H04B10/2575 ,  H04Q11/00

CPC分类号： H04B10/25751 ,  H04B10/0793 ,  H04B10/27 ,  H04J14/0242 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q11/0071 ,  H04Q2011/0015 ,  H04Q2011/0039 ,  H04Q2011/0083

摘要： In a communication network, a node at a subscriber premises includes an input/output (I/O) port, and a device for monitoring a subscriber premises. The device includes an upstream signal path including a first switch, a downstream signal path, and a controller having an input/output (I/O) port coupled to the I/O port of the node, and a first output port. The first switch is coupled to the first output port selectively to complete the upstream signal path.

公开(公告)号：US20170026128A1

公开(公告)日：2017-01-26

申请号：US15215088

申请日：2016-07-20

申请人： Futurewei Technologies, Inc.

发明人： Duane Remein ,  Frank Effenberger ,  Yuanqiu Luo

IPC分类号： H04B10/27 ,  H04L12/861 ,  H04L12/741 ,  H04L29/06

CPC分类号： H04B10/27 ,  H04B10/615 ,  H04J14/0242 ,  H04J14/0282 ,  H04L45/745 ,  H04L47/30 ,  H04L49/9005 ,  H04L49/9047 ,  H04L69/08 ,  H04L69/22

摘要： An Ethernet access network system for inverse multiplexing can comprise a reconciliation sublayer (RS) transmitter and an RS receiver. The RS transmitter can be configured to retrieve an LLID from a data stream; determine bonded channel connections at an ONU corresponding to the LLID, wherein each bonded channel connection is coupled to a FIFO buffer of a plurality of FIFO buffers; route one or more packets of the data stream to a first FIFO buffer of the plurality of FIFO buffers in response to the first FIFO buffer having a lowest fill rate; and transmit the one or more packets across the bonded channel connections. The RS receiver can be configured to receive the one or more packets; and arrange the one or more packets in order based on a packet order indicator.

摘要翻译： 用于反向多路复用的以太网接入网络系统可以包括协调子层（RS）发射机和RS接收机。 RS发射机可以被配置为从数据流中检索LLID; 确定在与所述LLID相对应的ONU处的绑定信道连接，其中每个绑定信道连接耦合到多个FIFO缓冲器的FIFO缓冲器; 响应于所述第一FIFO缓冲器具有最低填充率，将所述数据流的一个或多个分组路由到所述多个FIFO缓冲器中的第一FIFO缓冲器; 并且通过绑定的信道连接发送一个或多个分组。 RS接收机可以被配置为接收一个或多个分组; 并且基于分组顺序指示符按顺序排列一个或多个分组。

公开(公告)号：US20160241330A1

公开(公告)日：2016-08-18

申请号：US15029370

申请日：2013-10-18

申请人： TELEFÓNICA, S.A.

发明人： Manuel Sanchez Yanguela ,  Rafael Canto Palancar

IPC分类号： H04B10/071 ,  H04B10/077 ,  H04J14/02

CPC分类号： H04B10/071 ,  G01M11/3136 ,  H04B10/0771 ,  H04J14/0242 ,  H04J14/0282

摘要： The present invention describes a method, system and device for supervising a set of optical fibres of an Optical Network (detecting and locating the failures in deployed optical fibres) which solve some of the problems found in prior art techniques The embodiments of the present invention suggest an innovative approach, which allows to accurately and unambiguously detect and locate failures even in complex point to multipoint optical fibre networks.

摘要翻译： 本发明描述了一种用于监视光网络的一组光纤（检测和定位部署的光纤中的故障）的方法，系统和设备，其解决了现有技术中发现的一些问题。本发明的实施例提出 一种创新的方法，即使在复杂的点对多点光纤网络中，也能够准确无误地检测和定位故障。

公开(公告)号：US20140079401A1

公开(公告)日：2014-03-20

申请号：US14118922

申请日：2012-05-25

申请人： Han-Hyub Lee ,  Jie-Hyun Lee ,  Eon-Sang Kim ,  Sang-Soo Lee

发明人： Han-Hyub Lee ,  Jie-Hyun Lee ,  Eon-Sang Kim ,  Sang-Soo Lee

IPC分类号： H04B10/079 ,  H04J14/02

CPC分类号： H04J14/0242 ,  H04B10/0795 ,  H04B10/2587 ,  H04J14/02 ,  H04J2014/0253

摘要： A wavelength-division multiplexing optical communication system and a method for measuring optical performance of an output signal for the system. The optical communication system includes: a service-provider device; a local node; and a plurality of subscriber devices. The service-provider device includes: a plurality of first optical transceivers; a first optical multiplexer/demultiplexer (OD/OM) connected to the plurality of first optical transceivers; and a seed-light source providing seed light. Each subscriber device includes a second optical transceiver. The local node connects the service-provider device and the plurality of subscriber devices to each other using a DWDM link comprising: a second multiplexer/demultiplexer (OD/OM); and a single-mode optical fiber for transmission. Here, the optical intensity of an output signal of the second optical transceiver is determined by compensating for the value of the loss caused when the output signal passes through the second OD/OM of the local node.

摘要翻译： 一种波分复用光通信系统和用于测量该系统的输出信号的光学性能的方法。 光通信系统包括：服务提供者设备; 一个本地节点; 和多个订户设备。 服务提供者设备包括：多个第一光收发器; 连接到所述多个第一光收发器的第一光复用器/解复用器（OD / OM）; 和提供种子光的种子光源。 每个用户设备包括第二光收发器。 本地节点使用DWDM链路将服务提供商设备和多个用户设备彼此连接，包括：第二多路复用器/解复用器（OD / OM）; 和用于传输的单模光纤。 这里，通过补偿当输出信号通过本地节点的第二OD / OM时引起的损耗的值来确定第二光收发器的输出信号的光强度。

公开(公告)号：US20180175964A1

公开(公告)日：2018-06-21

申请号：US15385798

申请日：2016-12-20

申请人： Google Inc.

发明人： Xiangjun Zhao ,  Daoyi Wang ,  Liang Du ,  Changhong Joy Jiang ,  Cedric Fung Lam

IPC分类号： H04J14/02 ,  H04B10/27 ,  H04Q11/00

CPC分类号： H04J14/0242 ,  H04B10/27 ,  H04B10/572 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0018

摘要： A system includes a multiplexer having a pass-band and an optical network unit (ONU) optically coupled to the multiplexer. The ONU includes a tunable laser configured to continuously transmit an optical signal to the multiplexer in a burst-on state and a burst-off state. While in the burst-on state, the ONU is configured to tune the tunable laser to transmit the optical signal at a transmit wavelength within the wavelength pass-band of the multiplexer. The multiplexer configured to allow passage therethrough of the optical signal at the transmit wavelength. While in the burst-off state, the ONU is configured to tune the tunable laser to transmit the optical signal at a non-transmit wavelength outside of the wavelength pass-band of the multiplexer. The multiplexer configured to block passage therethrough of the optical signal at the non-transmit wavelength.