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1. 发明公开

US20230246725A1 Wavelength-Division-Multiplexing Optical Circuit Implemented in Photonic Integrated Circuit for Optical Transmitter 审中-公开
公开(公告)号：US20230246725A1
公开(公告)日：2023-08-03
申请号：US17590959
申请日：2022-02-02
申请人： II-VI DELAWARE, INC.
发明人： Po Dong , Argishti Melikyan
IPC分类号： H04J14/02 , H04J14/06 , H04B10/50 , H04B10/516
CPC分类号： H04J14/0205 , H04J14/06 , H04J14/0216 , H04B10/503 , H04B10/516
摘要： An optical circuit is used with continuous wave signals having different wavelengths at a channel spacing from one another. A portion of the optical circuit is implemented in a photonic integrated circuit. Modulators in a modulation stage modulate the continuous wave signals to produce modulated signals. A multiplexing stage, which can have multiplexing filters, power combiners, or power couplers, multiplexes the continuous wave or modulated signals to produce multiplexed signals. The multiplexing stage may be placed either before or after the modulation stage. One or more polarization rotator and combiner (PRC) devices in a final stage combines the multiplexed signals into an output signal. The output signal has a first set of the different wavelengths at a first polarization and has a second separate set of the different wavelengths at a second polarization orthogonal to the first polarization.

2. 发明授权

US09654246B2 Low cost secure submarine ROADM branching unit using bidirectional wavelength-selective switch 有权
公开(公告)号：US09654246B2
公开(公告)日：2017-05-16
申请号：US14938771
申请日：2015-11-11
申请人： NEC Laboratories America, Inc.
发明人： Philip Nan Ji , Ryuji Aida , Ting Wang
IPC分类号： H04J14/02
CPC分类号： H04J14/0212 , H04J14/0204 , H04J14/0205 , H04J14/0216 , H04J14/0221
摘要： A reconfigurable optical add/drop multiplexer (ROADM) unit includes a first optical circulator coupled to a first terminal; a second optical circulator coupled to a second terminal; a third optical circulator coupled to a third terminal; a fourth optical circulator coupled to a fourth terminal; a first wavelength-selective switch (WSS), coupled to the first, second, and third optical circulators; a second WSS coupled to the first, second, and fourth optical circulators, wherein the first and second WSSes are bidirectional operated; a first 1:2 coupler positioned between the first circulator and the first and second WSSes; a second 1:2 coupler positioned between the second circulator and the first and second WSSes.

3. 发明申请

US20170082908A1 OPTICAL ROUTER 审中-公开
公开(公告)号：US20170082908A1
公开(公告)日：2017-03-23
申请号：US15279459
申请日：2016-09-29
申请人： LUMILANT, INC.
发明人： AHMED SHARKAWY , DENNIS W. PRATHER , MATHEW JOSEPH ZABLOCKI
IPC分类号： G02F1/313 , H04Q11/00 , H04B10/25
CPC分类号： G02F1/3133 , B82Y20/00 , G02B6/1225 , G02B6/125 , G02F1/025 , G02F1/3134 , G02F1/3138 , G02F2001/0152 , G02F2001/311 , G02F2202/105 , G02F2202/32 , H04B10/2503 , H04J14/0208 , H04J14/021 , H04J14/0212 , H04J14/0216 , H04J14/0217 , H04Q11/0005 , H04Q2011/0052 , H04Q2011/0058
摘要： An optical routing element may include a planar dielectric photonic crystal which includes a lattice of holes having a first linear defect adjacent a second linear defect, with the two defects being separated by a central row of lattice holes. The first linear defect in the lattice of holes may form a first single mode line defect waveguide, and the second linear defect in the lattice of holes may form a second single mode line defect waveguide. Optical energy may be selectively coupled between the first and second waveguides across the central row of lattice holes. A free-carrier injector may be included to inject free-carriers into the dielectric photonic crystal, activation of which may alter selectivity of the optical coupling between the first and second waveguides. A plurality of optical routing elements with associated free-carrier injectors may be interconnected to form a bi-directional optical routing array.

4. 发明授权

US09312980B1 Communication fabric for a cluster of network hosts 有权
标题翻译：网络主机集群的通信结构
公开(公告)号：US09312980B1
公开(公告)日：2016-04-12
申请号：US14534854
申请日：2014-11-06
申请人： Alcatel-Lucent USA Inc.
发明人： Joseph K. Kakande
IPC分类号： H04J14/00 , H04J14/02 , H04B10/25 , H04Q11/00 , H04B10/40
CPC分类号： H04J14/0279 , H04B10/40 , H04B10/801 , H04J14/0212 , H04J14/0216 , H04Q11/0001 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/005
摘要： We disclose a communication system in which a cluster of network nodes is interconnected using an optical interconnect and an electrical switch engine. A bidirectional communication channel between any two of the network nodes can be set up using two bidirectional optical links established through the optical interconnect and one bidirectional electrical link configured to connect the ends of the two bidirectional optical links through the switch engine. The optical interconnect has a structure that enables the communication system to be (re)configurable for a desired level of oversubscription. Some embodiments of the communication system can advantageously be used in a data-center network.
摘要翻译：我们公开了一种通信系统，其中一组网络节点使用光学互连和电气开关引擎互连。可以使用通过光互连建立的两个双向光链路和被配置为通过交换引擎连接两个双向光链路的末端的一个双向电连接来建立任何两个网络节点之间的双向通信信道。光学互连具有使通信系统能够（重新）可配置以达到期望的超额预订水平的结构。通信系统的一些实施例可以有利地用于数据中心网络。

5. 发明申请

US20160006536A1 SIGNAL PROCESSING METHOD AND BIDIRECTIONAL CWDM RING NETWORK SYSTEM FOR THE SAME 审中-公开
标题翻译：信号处理方法和双向CWDM环网络系统
公开(公告)号：US20160006536A1
公开(公告)日：2016-01-07
申请号：US14772187
申请日：2014-03-07
申请人： ERICSSON-LG CO., LTD.
发明人： Hee Yeal RHY , Gwang Yong YI
IPC分类号： H04J14/02
CPC分类号： H04J14/0283 , H04J14/021 , H04J14/0213 , H04J14/0216 , H04J14/0219 , H04J14/0257
摘要： The present disclosure relates to a signal processing method and a bidirectional coarse wavelength division multiplexing (CWDM) ring network system allocating at least two wavelength channels per a single wavelength grid to thereby increase the numbers of wavelength channels. The bidirectional CWDM ring network system is configured to form an optical signal having specific wavelength; allocate at least two wavelength channels per a single CWDM wavelength grid; and add an optical signal having specific wavelength to the optical signal formed in at least two the optical transceivers or drop an optical signal having specific wavelength to the optical signal formed at the at least two optical transceivers.
摘要翻译：本公开涉及一个信号处理方法和双波长粗波分复用（CWDM）环网系统，每个单波长网格分配至少两个波长信道，从而增加波长信道的数目。双向CWDM环网系统被配置为形成具有特定波长的光信号; 每个CWDM波长网格分配至少两个波长信道; 并将具有特定波长的光信号添加到在至少两个光收发器中形成的光信号，或者将具有特定波长的光信号丢弃到在至少两个光收发器上形成的光信号。

6. 发明申请

US20150180606A1 OPTICAL LINE TERMINAL ARRANGEMENT, APPARATUS AND METHODS 审中-公开
标题翻译：光线终端装置，装置和方法
公开(公告)号：US20150180606A1
公开(公告)日：2015-06-25
申请号：US14641715
申请日：2015-03-09
申请人： Coriant Operations, Inc.
发明人： Ornan A. Gerstel , Rajiv Ramaswami
IPC分类号： H04J14/02
CPC分类号： H04J14/022 , H04J14/0201 , H04J14/0206 , H04J14/0212 , H04J14/0216 , H04J14/0278 , H04J14/0282 , H04J14/0286
摘要： A wavelength division multiplexed optical communication system includes a plurality of optical line terminals which may be part of separate in service networks, each having a line interface and an all-optical pass-through interface including a plurality of pass-through optical ports, and each also including a plurality of local optical ports which are connectable to client equipment and an optical multiplexer/demultiplexer for multiplexing/demultiplexing optical wavelengths. The optical multiplexer/demultiplexer may include one or more stages for inputting/outputting individual wavelengths or bands of a predetermined number of wavelengths, or a combination of bands and individual wavelengths. At least one of the pass-through optical ports of an optical line terminal of one network may be connected to at least one of the pass-through optical ports of an optical line terminal of another network to form an optical path from the line interface of the optical line terminal of the one network to the line interface of the optical line terminal of the another network to form a merged network. The use of such optical line terminals allows the upgrading and merging of the separate networks while in service.
摘要翻译：波分多路复用光通信系统包括多个光线路终端，其可以是服务网络中分离的一部分，每个具有线路接口和包括多个通过光端口的全光通过接口，并且每个还包括可连接到客户设备的多个本地光端口和用于复用/解复用光波长的光复用器/解复用器。光复用器/解复用器可以包括一个或多个级，用于输入/输出预定数量的波长的各个波长或波段，或波段和各波长的组合。一个网络的光线路终端的至少一个直通光端口可以连接到另一网络的光线路终端的至少一个直通光端口，以形成从一个网络的光线路终端到另一个网络的光线路终端的线路接口，形成一个合并网络。使用这种光线路终端允许在使用中升级和合并分离的网络。

7. 发明授权

US08971700B2 Bidirectional monitor module, optical module, optical add-drop multiplexer, and optical system 有权
标题翻译：双向监控模块，光模块，光分插复用器和光学系统
公开(公告)号：US08971700B2
公开(公告)日：2015-03-03
申请号：US13850551
申请日：2013-03-26
申请人： Fujitsu Limited
发明人： Takeshi Sakamoto , Norifumi Shukunami
IPC分类号： H04B10/07 , H04J14/02 , H04B10/079
CPC分类号： H04B10/07 , H04B10/07955 , H04J14/0204 , H04J14/0209 , H04J14/0212 , H04J14/0216 , H04J14/0217 , H04J14/0221
摘要： A bidirectional monitor module includes a 2×2 optical coupler configured to output input light that is input from a first port to a second port and drop the input light input from the first port to a third port and also output input light that is input from the second port to the first port and drop the input light input from the second port to a fourth port; an optical output unit configured to output one of light that is dropped and output from the third port and light that is dropped and output from the fourth port; and a monitor unit configured to monitor optical power of the light output from the optical output unit.
摘要翻译：双向监视器模块包括2×2光耦合器，被配置为输出从第一端口输入到第二端口的输入光，并将从第一端口输入的输入光降到第三端口，并且还输出从将所述第二端口连接到所述第一端口并将从所述第二端口输入的输入光线投入到第四端口; 光输出单元，被配置为输出从第三端口下落并输出的光中的一个和从第四端口输出的光; 以及监视单元，被配置为监视从所述光输出单元输出的光的光功率。

8. 发明申请

US20140226987A1 Protected Optical Single-Fiber WDM System 有权
公开(公告)号：US20140226987A1
公开(公告)日：2014-08-14
申请号：US14180295
申请日：2014-02-13
申请人： ADVA Optical Networking SE
发明人： Michael Eiselt , Klaus Grobe , Jörg-Peter Elbers
IPC分类号： H04J14/02
CPC分类号： H04J14/0216 , H04J14/0213 , H04J14/0279 , H04J14/0283 , H04J14/0294 , H04J14/0295 , H04J14/0297
摘要： The invention relates to a protected optical single-fiber WDM system. A first (3) and a second (5) head-end terminal and at least one optical add/drop filter device (11) are connected to form a chain-like transmission path, each of the first and second head-end terminals (3, 5) being connected, at a WDM port (3a, 5a), through a single optical fiber (13) to a western (11a) or an eastern WDM port (11d) of an adjacent one of the optical add/drop filter devices (11), respectively, and each of the optical add/drop filter devices (11) being connected, at an eastern or western WDM port (11d, 11a), to a western or eastern WDM port (11a, 11d) of an adjacent one of the optical add/drop filter devices (11), respectively. At least one tail-end terminal (9) is connected to each optical add/drop filter device (11), wherein a first (9a) and a second (9b) channel port of the respective add/drop tail-end terminal (9) is connected to a dedicated first (11b) and second (11c) channel port of the optical add/drop filter device (11) through a respective optical fiber (15,17). The head-end terminals (3, 5), the optical add/drop filter devices (11) and the tail-end terminals (9) are adapted to selectively or simultaneously establish a bidirectional communication between each tail-end terminal (9) and the first and second head-end terminal (3, 5), wherein each tail-end terminal (9) bidirectionally communicates through its first channel port (9a) with the first head-end terminal (3) and bidirectionally communicates through its second channel port (9b) with the second head-end terminal (5), one of these communication paths serving as a working communication path and the other of these communication paths serving as a protection path, wherein for the communication between each of the tail-end terminals (9) and the first and second head-end terminal (3, 5), respectively, dedicated optical channel signals lying in a first wavelength band and a second wavelength band are used for each transmission direction, the first and second wavelength band revealing no overlap and the optical channel signals in each wavelength band forming, in each transmission direction in the chain-like transmission path, respective optical WDM signals.

9. 发明授权

US07787772B2 Optical signal transmission device and optical communication network 有权
标题翻译：光信号传输设备和光通信网络
公开(公告)号：US07787772B2
公开(公告)日：2010-08-31
申请号：US11795940
申请日：2006-01-23
申请人： Takeshi Ota
发明人： Takeshi Ota
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04J14/0201 , H04J14/0212 , H04J14/0213 , H04J14/0216 , H04J14/0241 , H04J14/0282 , H04J14/0283 , H04J14/0286 , H04J14/0295 , H04Q11/0062 , H04Q2011/0016 , H04Q2011/0052 , H04Q2011/0081 , H04Q2011/0092 , H04Q2011/0094
摘要： By using wavelength division multiplexing technologies, redundant star topology network is constructed on a ring-shaped optical fiber network. Edge-switches 5a, 5b, 5c, and 5d are connected to client station groups 6a, 6b, 6c, and 6d are connected, respectively. The edge-switches 5a, 5b, 5c, and 5d are connected to edge optical transport device 2a, 2b, 2c, and 2d. Core-switches 4a and 4b are connected to a core optical transport device 1. The edge optical transport device 2a, 2b, 2c, 2d, and the core optical transport device 1 are connected to a ring-shaped single optical fiber 3. A communication circuit 7 is formed among core optical transport device 1, edge optical transport devices 2a, 2b, 2c, and 2d, by using wavelength division multiplexing technologies.
摘要翻译：通过使用波分复用技术，在环形光纤网络上构建冗余星形拓扑网络。边缘开关5a，5b，5c，5d分别连接到客户端组6a，6b，6c，6d。边缘开关5a，5b，5c和5d连接到边缘光学传输装置2a，2b，2c和2d。核心开关4a和4b连接到核心光学传输装置1.边缘光学传输装置2a，2b，2c，2d和核心光学传输装置1连接到环形单个光纤3。通过使用波分复用技术，在核心光传送装置1，边缘光传输装置2a，2b，2c，2d之间形成电路7。

10. 发明授权

US07623789B2 Low loss WDM add drop node 有权
标题翻译：低损耗WDM加入节点
公开(公告)号：US07623789B2
公开(公告)日：2009-11-24
申请号：US10275889
申请日：2002-04-11
申请人： Magnus Oberg , Ulf Persson
发明人： Magnus Oberg , Ulf Persson
IPC分类号： H04J14/02 , H04B10/02
CPC分类号： H04J14/0227 , H04J14/0206 , H04J14/0208 , H04J14/0209 , H04J14/0216 , H04J14/0241 , H04J14/0283 , H04J14/0291 , H04J14/0294
摘要： In an optical fiber network bidirectional WDM traffic is sent on one optical main transmission fiber (1) between two nodes (A, B) connected in the path of the transmission fiber. The bidirectional traffic between a pair of nodes is carried on two different wavelength channels (Nos. 1, 2), one for each direction. The two wavelength channels are added to/dropped from the traffic in the ring fiber (1) in each node using a two-channel add/drop filter (5e1-2, 5w1-2), e.g. a band add/drop filter. In this way the number of add/drop filters connected in the path of the transmission fiber can be kept as small as possible.
摘要翻译：在光纤网络中，双向WDM业务在连接在传输光纤路径中的两个节点（A，B）之间的一个光学主传输光纤（1）上发送。一对节点之间的双向业务承载在两个不同的波长信道（号1,2）上，每个方向一个。使用双通道加/减滤波器（5e1-2,5w1-2），将两个波长信道添加到每个节点中的环形光纤（1）中的业务/丢弃。一个频带加/减滤波器。以这种方式，连接在传输光纤的路径中的加/减滤波器的数量可以保持尽可能小。

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