公开(公告)号：US10050708B2

公开(公告)日：2018-08-14

申请号：US15385696

申请日：2016-12-20

申请人： Google Inc.

发明人： Liang Du ,  Yut Loy Chan ,  Xiangjun Zhao ,  Changhong Joy Jiang ,  Cedric Fung Lam ,  Daoyi Wang ,  Tao Zhang

IPC分类号： H04B10/25 ,  H04J14/02

CPC分类号： H04B10/2503 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0287 ,  H04J14/0291

摘要： A carrier office includes an optical line terminal, a first transmit-erbium-doped fiber amplifier (EDFA), and a second transmit-EDFA. The OLT is configured to transmit first and second optical signals. The first transmit-EDFA is optically coupled to the OLT and a first feeder fiber, and the first feeder fiber is optically coupled to a first remote node (RN). The first transmit-EDFA is operable between a respective enabled state and a respective disabled state. The second transmit-EDFA is optically coupled to the OLT and a second feeder fiber, and the second feeder fiber is optically coupled to a second RN. The second transmit-EDFA is operable between a respective enabled state and a respective disabled state.

公开(公告)号：US20180145786A1

公开(公告)日：2018-05-24

申请号：US15791073

申请日：2017-10-23

申请人： CommScope Technologies LLC

发明人： STEVEN C. ZIMMEL ,  TIMOTHY G. BADAR ,  TREVOR D. SMITH

IPC分类号： H04J14/02 ,  H04B10/25 ,  H04B10/27 ,  H04J14/00

CPC分类号： H04J14/0226 ,  H04B10/25 ,  H04B10/27 ,  H04J14/00 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282

摘要： A system for delivering multiple passive optical network services is disclosed. The system includes a first optical transmission service comprising a common wavelength pair routed from a source to each of a plurality of subscribers. The system further includes a second optical transmission service comprising a plurality of unique wavelength pairs, where each of the unique wavelength pairs is routed from the source to a subscriber among the plurality of subscribers. The system delivers the first optical transmission service and the second optical transmission service to the subscriber on a single optical fiber.

公开(公告)号：US20180131442A1

公开(公告)日：2018-05-10

申请号：US15576635

申请日：2016-05-23

申请人： Applied Optoelectronics, Inc.

发明人： I-Lung HO ,  Chong WANG ,  Justin LII ,  Zhengyu MIAO

IPC分类号： H04B10/40 ,  H04J14/02 ,  G02B6/42 ,  G02B6/43 ,  H04B10/50

CPC分类号： H04B10/40 ,  G02B6/3885 ,  G02B6/4215 ,  G02B6/425 ,  G02B6/4263 ,  G02B6/4271 ,  G02B6/4272 ,  G02B6/4286 ,  G02B6/4292 ,  G02B6/43 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

摘要： A coaxial transmitter optical subassembly (TOSA) including a cuboid type TO laser package may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The cuboid type TO laser package is made of a thermally conductive material and has substantially flat outer surfaces that may be thermally coupled to substantially flat outer surfaces on a transceiver housing and/or on other cuboid type TO laser packages. An optical transceiver may include multiple coaxial TOSAs with the cuboid type TO laser packages stacked in the transceiver housing. The cuboid type TO laser package may thus provide improved thermal characteristics and a reduced size within the optical transceiver.

公开(公告)号：US09698567B2

公开(公告)日：2017-07-04

申请号：US13357116

申请日：2012-01-24

申请人： Jun Zheng ,  Stefan J. Murry ,  Bujin Guo

发明人： Jun Zheng ,  Stefan J. Murry ,  Bujin Guo

IPC分类号： H04J14/02 ,  H01S3/08 ,  H01S5/14 ,  H04B10/50 ,  H01S3/105 ,  H01S3/106 ,  H01S5/022

CPC分类号： H01S5/143 ,  H01S3/08063 ,  H01S3/105 ,  H01S3/106 ,  H01S5/02248 ,  H01S5/02284 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： A wavelength-selectable laser device providing spatially-selectable wavelength(s) may be used to select one or more wavelengths for lasing in a tunable transmitter or transceiver, for example, in a wavelength division multiplexed (WDM) optical system such as a WDM passive optical network (PON). The wavelength-selectable laser device uses a dispersive optical element, such as a diffraction grating, to disperse light emitted from a laser emitter and to direct different wavelengths of the light toward a reflector at different spatial positions such that the wavelengths may be selected by allowing light to be reflected from selected spatial position(s) back into the laser emitter. Thus, the reflected light with a wavelength at the selected spatial position(s) is allowed to complete the laser cavity.

公开(公告)号：US09640943B2

公开(公告)日：2017-05-02

申请号：US14417747

申请日：2012-07-30

申请人： Zuon-Min Chuang ,  Rang-Chen Yu ,  Domenico Di Mola ,  Sung-Ping Huang

发明人： Zuon-Min Chuang ,  Rang-Chen Yu ,  Domenico Di Mola ,  Sung-Ping Huang

IPC分类号： H04B10/27 ,  H04J14/00 ,  H01S5/00 ,  H01S5/024 ,  H01S5/065 ,  H01S5/10 ,  H01S5/14 ,  H04B10/572 ,  H04J14/02 ,  H01S3/08 ,  H04B10/50 ,  H04J14/06

CPC分类号： H04J14/0246 ,  H01S3/08027 ,  H01S3/08054 ,  H01S3/10061 ,  H01S3/106 ,  H01S3/1062 ,  H01S5/0064 ,  H01S5/0078 ,  H01S5/02438 ,  H01S5/0656 ,  H01S5/1021 ,  H01S5/141 ,  H01S5/143 ,  H01S5/146 ,  H01S2301/14 ,  H01S2301/163 ,  H04B10/2572 ,  H04B10/501 ,  H04B10/505 ,  H04B10/572 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/06 ,  H04Q11/0067 ,  H04Q2011/0009 ,  H04Q2011/0032 ,  H04Q2011/0035

摘要： Methods, systems, and apparatus, for an external cavity FP laser. In one aspect, an apparatus is provided that includes a FP laser diode; a Faraday rotator (FR) coupled to receive an optical output of the FP laser diode and that rotates a polarization of the optical output; an optical fiber coupled at a first end to receive the output of the FR; a WDM filter coupled to a second end of the optical fiber to receive the optical signal from the optical fiber; and a FRM coupled directly or indirectly to an output of the WDM filter, wherein an optical output of the WDM filter is partially reflected by the FRM such that the polarization of a reflected beam is rotated, and wherein the reflected optical signal then passes through the FR with its polarization being rotated by the FR before it is injected back into the FP laser diode.

公开(公告)号：US09608760B2

公开(公告)日：2017-03-28

申请号：US14345185

申请日：2012-09-20

申请人： Nanyang Technological University

发明人： Wende Zhong ,  Quang Thai Pham

IPC分类号： H04J14/00 ,  H04J14/02 ,  H04B10/2575 ,  H04B10/272 ,  H04B10/27 ,  H04B10/67

CPC分类号： H04J14/0239 ,  H04B10/25754 ,  H04B10/27 ,  H04B10/272 ,  H04B10/67 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

摘要： The present invention is an optical terminal device comprising a signal modulator configured to generate a first signal modulated onto a first optical sideband of a first optical wavelength signal and a second signal modulated onto a second sideband of the first optical wavelength signal, the first signal being a different type than the second signal; a receiver configured to receive a third signal modulated onto the first optical sideband of a second optical wavelength signal and a fourth signal modulated onto a second sideband of the second optical wavelength signal, the third signal being a different type than the fourth signal; and a circulator coupled to the signal modulator and the receiver, wherein the circulator is configured to communicate with a node of an integrated network via an optical fiber. A remote node, a communication terminal, and a method of performing integrated network access are also disclosed.

公开(公告)号：US09584249B2

公开(公告)日：2017-02-28

申请号：US14831860

申请日：2015-08-20

申请人： Oki Electric Industry Co., Ltd.

发明人： Satoshi Furusawa

IPC分类号： G02F1/00 ,  H04J14/02 ,  H04Q11/00 ,  H04B10/272

CPC分类号： H04J14/0246 ,  H04B10/272 ,  H04J14/0223 ,  H04J14/0227 ,  H04J14/025 ,  H04J14/0271 ,  H04J14/0282 ,  H04J14/0293 ,  H04Q11/0067 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： The station-side terminal apparatus for the optical access network includes: the station-side terminal apparatus; the subscriber-side terminal apparatuses connected to the station-side terminal apparatus via the optical transmission line; the terminal devices to which mutually different wavelengths are assigned; and the communication failure detecting unit. Each of the terminal devices includes the uplink communication state monitoring unit configured to monitor a state of uplink communication for each registered subscriber-side terminal apparatus, on the basis of the input uplink signal, and the downlink communication failure information extracting unit configured to extract information of a state of downlink communication, which is transmitted from the registered subscriber-side terminal apparatus. The communication failure detecting unit detects a failure of the uplink communication and a failure of the downlink communication, on the basis of the state of the uplink communication and the state of the downlink communication.

摘要翻译： 用于光接入网的站侧终端装置包括：站侧终端装置; 所述用户侧终端装置经由所述光传输线路连接到所述站侧终端装置; 分配相互不同波长的终端设备; 和通信故障检测单元。 每个终端设备包括：上行链路通信状态监视单元，被配置为基于输入的上行链路信号来监视每个注册的用户侧终端设备的上行链路通信的状态;以及下行链路通信故障信息提取单元，被配置为提取信息 从登记的用户侧终端装置发送的下行通信状态。 通信故障检测单元根据上行通信的状态和下行通信的状态来检测上行通信的故障和下行通信的故障。

公开(公告)号：US09525507B2

公开(公告)日：2016-12-20

申请号：US14740480

申请日：2015-06-16

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Han Hyub Lee ,  Kwang Ok Kim ,  Kyeong Hwan Doo ,  Sang Soo Lee

IPC分类号： H04J14/02 ,  H04J14/08

CPC分类号： H04J14/0246 ,  H04J14/025 ,  H04J14/0256 ,  H04J14/0272 ,  H04J14/0282 ,  H04J14/08 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： A method of tuning a wavelength in a TWDM-PON which has a plurality of operable channels is provided. First, a second channel is added as an operating channel of the TWDM-PON in which at least a first channel is working, and then an OLT that is providing a service to an ONU through the first channel requests the ONU to tune to the second channel. In response to receiving the request, the ONU determines whether a downstream wavelength of the second channel has been recorded thereon. According to the determination result, the ONU sends to the OLT an ACK message that indicates that the ONU is able to perform wavelength tuning and then commences wavelength tuning to the second channel, or the ONU sends to the OLT a NACK message that indicates that the ONU is unable to perform wavelength tuning.

摘要翻译： 提供了一种调整具有多个可操作通道的TWDM-PON中的波长的方法。 首先，添加第二信道作为其中至少第一信道正在工作的TWDM-PON的操作信道，然后通过第一信道向ONU提供业务的OLT请求ONU调谐到第二信道 渠道。 响应于接收到请求，ONU确定第二信道的下行波长是否已被记录在其上。 根据确定结果，ONU向OLT发送指示ONU能够执行波长调谐的ACK消息，然后开始向第二信道进行波长调谐，或者ONU向OLT发送NACK消息，该NACK消息指示 ONU无法进行波长调谐。

公开(公告)号：US20160359580A1

公开(公告)日：2016-12-08

申请号：US15243627

申请日：2016-08-22

申请人： Huawei Technologies Co., Ltd.

发明人： Bo GAO ,  Jianhe GAO

IPC分类号： H04J14/02 ,  H04B10/60 ,  H04B10/572

CPC分类号： H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0282

摘要： This application provides a wavelength negotiation method of a multi-wavelength passive optical network, including: receiving a wavelength status table that is broadcast by an OLT over each downstream wavelength channel of a multi-wavelength PON system, where the wavelength status table is used to indicate information about available wavelengths of the multi-wavelength PON system and statistic information of registered ONUs of a corresponding wavelength channel; selecting an upstream transmit wavelength and a downstream receive wavelength according to the wavelength status table; and reporting information about the upstream transmit wavelength and information about the downstream receive wavelength to the OLT so that the OLT refreshes the wavelength status table. This application also provides a wavelength negotiation apparatus of the multi-wavelength passive optical network and a multi-wavelength passive optical network system.

公开(公告)号：US09491527B2

公开(公告)日：2016-11-08

申请号：US12919477

申请日：2008-07-21

申请人： Laura Sanita ,  Gianpaolo Oriollo ,  Paola Iovanna ,  Roberto Sabella

发明人： Laura Sanita ,  Gianpaolo Oriollo ,  Paola Iovanna ,  Roberto Sabella

IPC分类号： H04L12/18 ,  H04Q11/00 ,  H04J14/02 ,  H04L12/701 ,  H04L12/707 ,  H04L12/703 ,  H04L12/723 ,  H04L12/721 ,  H04L12/715

CPC分类号： H04Q11/0062 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/028 ,  H04J14/0284 ,  H04J14/0295 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L45/62 ,  H04L45/64 ,  H04Q2011/0073 ,  H04Q2011/0077 ,  H04Q2011/0081

摘要： A method for determining routing for data which is to be transmitted over a multilayer network, the network comprising a first layer of nodes, and a second layer of nodes, and the method comprising determining routing by taking account of available signal transmission/processing resource associated with the first layer and available signal transmission/processing resource associated with the second layer.

摘要翻译： 一种用于确定要在多层网络上传输的数据的路由的方法，所述网络包括第一层节点和第二层节点，并且所述方法包括通过考虑可用信号传输/处理资源相关联来确定路由 具有与第二层相关联的第一层和可用信号传输/处理资源。