公开(公告)号：US20230418014A1

公开(公告)日：2023-12-28

申请号：US18243369

申请日：2023-09-07

申请人： CORNING RESEARCH & DEVELOPMENT CORPORATION

发明人： Raman Kumar Selli

IPC分类号： G02B6/44 ,  H04J14/02

CPC分类号： G02B6/4471 ,  H04J14/0297 ,  H04J14/0283

摘要： Fiber optic terminals with wavelength division multiplexing (WDM) and connection ports supporting physical path redundancy for communication networks are disclosed. The fiber optic terminals provide multiple paths for optical communications. The fiber optic terminal comprises a shell that defines a cavity with at least one primary wavelength division multiplexing (PWDM) device and at least one redundant wavelength division multiplexing (RWDM) device disposed within the cavity of the shell.

公开(公告)号：US09960840B2

公开(公告)日：2018-05-01

申请号：US14486412

申请日：2014-09-15

申请人： ARRIS Enterprises, Inc.

发明人： Thomas J. Cloonan ,  David B. Bowler

IPC分类号： H04B10/03 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04B10/03 ,  H04J14/0297 ,  H04Q11/0067 ,  H04Q2011/0043 ,  H04Q2011/0081

摘要： An optical line terminal is operable in a passive optical network. The optical line terminal includes a chassis. A plurality of optical subsystems are disposed within the chassis. Each optical subsystem is operable to generate optical signals for delivery to a port. Each optical subsystem includes one or more optical switches. When a fault condition is detected at a first optical subsystem preventing the delivery of first optical signals generated by the first optical subsystem to the port of the first optical subsystem, the optical switches switch to deliver second downstream optical signals generated by a second optical subsystem to the port of the first optical subsystem.

公开(公告)号：US09900085B2

公开(公告)日：2018-02-20

申请号：US15074798

申请日：2016-03-18

申请人： FINISAR CORPORATION

发明人： Frank J. Flens

IPC分类号： H04B10/032 ,  H04B10/40

CPC分类号： H04B10/032 ,  H04B10/40 ,  H04J14/0297

摘要： A transceiver can include a transmitter and a receiver. The transmitter can include: a primary laser emitter; a primary monitor photodiode optically coupled with the laser emitter; a spare laser emitter; and a transmitter integrated circuit having a primary channel operably coupled with the primary laser emitter; a spare channel operably coupled with the spare laser emitter; a switch on the primary channel; and a secondary channel operably coupled with the switch and the spare channel. The receiver can include: a primary detector photodiode; a spare detector photodiode; and a receiver integrated circuit a primary receiver channel operably coupled with the at least one primary detector photodiode; a spare receiver channel operably coupled with the spare detector photodiode; a receiver switch on the spare receiver channel; and a secondary receiver channel operably coupled with the receiver switch and the primary receiver channel.

公开(公告)号：US09882633B2

公开(公告)日：2018-01-30

申请号：US14871424

申请日：2015-09-30

申请人： Juniper Networks, Inc.

发明人： Theodore J. Schmidt ,  Roberto Marcoccia ,  George R. Sosnowski ,  Christian Malouin

IPC分类号： H04B10/03 ,  H04B10/40 ,  H04J14/02

CPC分类号： H04B10/03 ,  H04B10/40 ,  H04J14/0295 ,  H04J14/0297

摘要： In some embodiments, an apparatus includes an optical transceiver that includes a first set of electrical transmitters operatively coupled to a switch. Each electrical transmitter from the first set of electrical transmitters is configured to transmit an electrical signal from a set of electrical signals. In such embodiments, the switch is configured to switch an electrical signal from the set of electrical signals such that the set of electrical signals are transmitted via a second set of electrical transmitters. Each electrical transmitter from the second set of electrical transmitters is operatively coupled to an optical transmitter from a set of optical transmitters. The set of optical transmitters is operatively coupled to an optical multiplexer. In such embodiments, at least one electrical transmitter from the second set of electrical transmitters is associated with a failure within the optical transceiver.

公开(公告)号：US09794018B2

公开(公告)日：2017-10-17

申请号：US14822110

申请日：2015-08-10

申请人： FUJITSU LIMITED

发明人： Masamitsu Komi ,  Tadanori Yokosawa ,  Hirokazu Shimada ,  Tamotsu Inoue

IPC分类号： H04B10/079 ,  H04B10/2525 ,  H04J14/02 ,  H04Q11/00 ,  H04B10/2575

CPC分类号： H04J14/0246 ,  H04B10/07957 ,  H04B10/25754 ,  H04J14/0245 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0282 ,  H04J14/0295 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q11/0067 ,  H04Q2011/0016 ,  H04Q2011/0081 ,  H04Q2011/0086

摘要： An optical network system includes an optical line terminal, an optical splitter that is connected to the optical line terminal via one first optical fiber, and a plurality of optical network units that are connected to the optical splitter via respective second optical fibers. The plurality of optical network units communicate with the optical line terminal using an optical signal of a working wavelength uniquely assigned to each of them. The optical line terminal communicates with an optical network unit that is connected to the optical splitter using an optical signal of a working wavelength and an optical signal of a spare wavelength that is common to a plurality of optical networks.

公开(公告)号：US20170180834A1

公开(公告)日：2017-06-22

申请号：US15117006

申请日：2015-01-06

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Kenichi MAEDA

IPC分类号： H04Q11/00 ,  H04J14/02

CPC分类号： H04Q11/0066 ,  H04J14/0257 ,  H04J14/0294 ,  H04J14/0297 ,  H04Q2011/0016 ,  H04Q2011/0081

摘要： 10-Gbps client signals (1a) to (1c) which are processed by a 10-Gbps transponder (3a), a 40-Gbps transponder (3b), and a 100-Gbps transponder (3c), respectively, are branched by optical couplers (2a) to (2c) into an M:N switch (40). The M:N switch (40) selects a client signal to be made redundant from the branched client signals (1a) to (1c) and outputs the selected client signal to a redundancy 100-Gbps transponder (50) having 10-Gbps-based client interfaces.

公开(公告)号：US20170048017A1

公开(公告)日：2017-02-16

申请号：US15336079

申请日：2016-10-27

申请人： Ciena Corporation

发明人： David Weldon BOERTJES ,  Stephen Daniel SHEW

IPC分类号： H04J14/02 ,  H04B10/27 ,  H04Q11/00 ,  H04L12/721

CPC分类号： H04J14/0227 ,  H04B10/27 ,  H04J14/02 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/022 ,  H04J14/0238 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0275 ,  H04J14/0286 ,  H04J14/0297 ,  H04L41/12 ,  H04L45/12 ,  H04L45/18 ,  H04L45/28 ,  H04L45/62 ,  H04L45/64 ,  H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/009

摘要： Systems and methods for routing wavelengths in an optical network include responsive to a path request for a wavelength or group of wavelengths, determining a path through the optical network; determining a location on the path where wavelength blocking should occur to form a loop-free path in the optical network; and setting the wavelength blocking at the location. The optical network can utilize a broadcast and select architecture and the wavelength blocking is configured to prevent the wavelength or group of wavelengths from looping back on a port where the wavelength or group of wavelengths has already been received on. The optical network can utilize an all-broadcast architecture and the wavelength blocking is configured to prevent multiple paths for the wavelength or group of wavelengths by constraining the wavelength or group of wavelengths to a single path through the optical network.

摘要翻译： 用于在光网络中路由波长的系统和方法包括响应于波长或波长组的路径请求，确定通过光网络的路径; 确定路径上应发生波长阻挡的位置，以在光网络中形成无环路径; 并在该位置设置波长阻塞。 光网络可以利用广播和选择架构，并且波长阻挡被配置为防止波长或波长组在已经接收波长或波长组的端口上循环回来。 光网络可以利用全广播架构，并且波长阻挡被配置为通过将波长或波长组限制到通过光网络的单个路径来防止波长或波长组的多个路径。

公开(公告)号：US20160352428A1

公开(公告)日：2016-12-01

申请号：US15234680

申请日：2016-08-11

申请人： Futurewei Technologies, Inc.

发明人： Ning Cheng ,  Frank J. Effenberger

IPC分类号： H04B10/27 ,  H04B10/40 ,  H04B10/80 ,  H04J14/02

CPC分类号： H04B10/27 ,  H04B10/40 ,  H04B10/807 ,  H04J14/02 ,  H04J14/0265 ,  H04J14/0282 ,  H04J14/0297

摘要： An apparatus comprising an arrayed waveguide grating (AWG) comprising a plurality of AWG ports, a power splitter comprising a plurality of splitter ports, and a plurality of optical interleavers, each coupled to a respective AWG port and a respective splitter port, for directing incoming optical signals to one of the AWG and the power splitter.

摘要翻译： 一种装置，包括包括多个AWG端口的阵列波导光栅（AWG），包括多个分离器端口的功率分配器和多个光交错器，每个耦合到相应的AWG端口和相应的分离器端口，用于引导输入 光信号到AWG和功率分配器之一。

公开(公告)号：US20160315731A1

公开(公告)日：2016-10-27

申请号：US15200755

申请日：2016-07-01

申请人： Mark E. Boduch ,  Kimon Papakos

发明人： Mark E. Boduch ,  Kimon Papakos

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0297 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0283 ,  H04J14/029 ,  H04Q11/0005

摘要： Example embodiments of the present invention relate to an optical node comprising of at least two degrees, a plurality of directionless add/drop ports, a plurality of primary WDM transmitters and receivers, and at least one protection WDM transmitter and receiver, wherein the at least one protection WDM transmitter and receiver can transmit and receive in place of any of the plurality of primary WDM transmitters and receivers.

公开(公告)号：US20160301467A1

公开(公告)日：2016-10-13

申请号：US15090642

申请日：2016-04-05

申请人： NEC Laboratories America, Inc.

发明人： Philip Nan Ji ,  Ting Wang ,  Ryuji Aida

IPC分类号： H04B10/032 ,  H04B10/25 ,  H04Q11/00 ,  H04J14/02

CPC分类号： H04B10/032 ,  H04B10/2503 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0043

摘要： A communication system includes a primary module with: first trunk and branch input and output ports, each coupled to first in/out couplers, the first in/out couplers coupled to first circulators, and the circulators in turn coupled to first central couplers; second trunk branch input and output ports, each coupled to second in/out couplers, each of second in/out couplers coupled to second circulators; and first and second bidirectional wavelength-selective switches (WSSes) coupled to the first central couplers. The system also includes a secondary module with first trunk and branch input and output ports, each coupled to first in/out couplers, the first in/out couplers coupled to third circulators, and the circulators in turn coupled to second central couplers; second trunk branch input and output ports, each coupled to second in/out couplers, each of second in/out couplers coupled to fourth circulators, and third and fourth bidirectional wavelength-selective switches (WSSes) coupled to the second central couplers. The system further includes one or more 2×2 switches coupling the primary module WSS outputs with the secondary module WSS outputs.

摘要翻译： 通信系统包括主模块，其具有：第一中继线和分支输入和输出端口，每个耦合到第一进/出耦合器，耦合到第一循环器的第一输入/输出耦合器，并且循环器又耦合到第一中心耦合器; 第二中继线分支输入和输出端口，每个耦合到第二输入/输出耦合器，每个第二输入/输出耦合器耦合到第二循环器; 以及耦合到第一中心耦合器的第一和第二双向波长选择开关（WSS）。 该系统还包括具有第一干线和分支输入和输出端口的二次模块，每个耦合到第一进/出耦合器，耦合到第三循环器的第一输入/输出耦合器，并且循环器又耦合到第二中心耦合器; 第二中继分支输入和输出端口，每个耦合到第二输入/输出耦合器，耦合到第四循环器的每个第二输入/输出耦合器，以及耦合到第二中心耦合器的第三和第四双向波长选择开关（WSS）。 该系统还包括一个或多个将主模块WSS输出与次模块WSS输出耦合的2×2开关。