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71. 发明授权

US5959767A Loss-less optical cross-connect 失效
标题翻译：无损光学交叉连接
公开(公告)号：US5959767A
公开(公告)日：1999-09-28
申请号：US777890
申请日：1996-12-31
申请人： Mohammad T. Fatehi , Wayne Harvey Knox
发明人： Mohammad T. Fatehi , Wayne Harvey Knox
IPC分类号： G02B6/00 , H01S3/06 , H01S3/10 , H04B10/02 , H04Q11/00 , H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/0011 , H04Q2011/0013 , H04Q2011/0015 , H04Q2011/0018 , H04Q2011/0039 , H04Q2011/0047 , H04Q2011/0052 , H04Q2011/0083
摘要： A loss-less optical cross-connect advantageously employs a plurality of optical rare earth-doped fiber optical amplifiers as gain-switched optical connections, for example, gain-switched optical distributors and gain-switched optical selectors. Each of the optical rare earth-doped fiber optical amplifiers acts as an ON/OFF switch. Also, both the gain-switched optical distributors and selectors employed in the optical cross-connect arrangement of this invention are a natural fit into today's optically amplified optical communication systems. In one embodiment, this is realized by employing a pump select circuit in conjunction with a plurality of pumps and the plurality of corresponding rare earth-doped fiber optical amplifiers. The particular pump and corresponding optical amplifier are selected by use of a control circuit arrangement to determine which output port or ports is (are) connected to the input port. The rare earth-doped fiber optical amplifiers and the corresponding pumps are employed advantageously for both the gain-switched optical distributors and the gain-switched optical selectors. In another embodiment, a so-called tuned pump arrangement is employed in conjunction with a plurality of filters and a corresponding plurality of rare earth-doped fiber optical amplifiers. A pump tuning arrangement is employed to control the tunable pump in order to select the appropriate one of a plurality of optical amplifiers to be activated, thus routing the input signals at any of a plurality of given wavelengths to the corresponding output line (or lines if broadcasting capability is employed). Again, the rare earth-doped fiber optical amplifiers and the corresponding pumps are employed advantageously for both the gain-switched optical distributors and the gain-switched optical selectors.
摘要翻译：无损光学交叉连接有利地使用多个光稀土掺杂光纤放大器作为增益切换光学连接，例如增益开关光分配器和增益开关光学选择器。每个光稀土掺杂光纤放大器用作ON / OFF开关。此外，本发明的光学交叉连接装置中采用的增益开关光分配器和选择器都是天然适合当今光学放大的光通信系统。在一个实施例中，这通过结合多个泵和多个对应的稀土掺杂光纤放大器采用泵选择电路来实现。通过使用控制电路装置来选择特定的泵和相应的光放大器，以确定哪个输出端口连接到输入端口。稀土掺杂光纤放大器和对应的泵有利地用于增益开关光分配器和增益开关光学选择器。在另一个实施例中，所谓的调谐泵装置与多个滤波器和相应的多个稀土掺杂光纤放大器结合使用。采用泵调谐装置来控制可调谐泵，以便选择要激活的多个光放大器中适当的一个，从而将多个给定波长中的任何一个的输入信号路由到相应的输出线（或者，如果广播能力）。再次，稀土掺杂光纤放大器和相应的泵有利地用于增益开关光分配器和增益开关光学选择器。

72. 发明授权

US5546209A One-to-many simultaneous and reconfigurable optical two-dimensional plane interconnections using multiple wavelength, vertical cavity, surface-emitting lasers and wavelength-dependent detector planes 失效
标题翻译：使用多个波长，垂直腔，表面发射激光器和波长相关检测器平面的一对多同时和可重新配置的光学二维平面互连
公开(公告)号：US5546209A
公开(公告)日：1996-08-13
申请号：US209866
申请日：1994-03-11
申请人： Alan E. Willner , Constance J. Chang-Hasnain , James E. Leight
发明人： Alan E. Willner , Constance J. Chang-Hasnain , James E. Leight
IPC分类号： G02B6/43 , H04Q11/00 , H04J14/00 , G02B27/00
CPC分类号： G02B6/43 , H04Q11/0003 , H04Q2011/0007 , H04Q2011/0009 , H04Q2011/0013 , H04Q2011/0018 , H04Q2011/0024 , H04Q2011/0047 , H04Q2011/0052
摘要： Optical communication apparatus for simultaneously and reconfigurably establishing optical communication channels, comprises at least one light source and a plurality of wavelength-selective detectors optically associated with each light source, the detectors arranged one behind another. The apparatus uses wavelength-division-multiplexing (WDM) to facilitate simultaneous and reconfigurable communication of one-to-many 2-D optical planes. This advance dramatically increases the system functionality of optical-plane interconnects. Such a system is realized by incorporating several multiple wavelength vertical-cavity surface-emitting lasers (VCSEL) into each transmitting pixel and incorporating wavelength selectivity into each subsequent detecting plane which will absorb one wavelength and be transparent to the rest; these structures can be fabricated by slightly modifying existing technology. This system allows for increased processing functionality of communicating both simultaneously and reconfigurably between many planes; broadcasting and dynamic independent interconnects are thus enabled.
摘要翻译：用于同时和可重构地建立光通信信道的光通信装置包括至少一个光源和与每个光源相关联的多个波长选择性检测器，所述检测器彼此排列。该装置使用波分复用（WDM）来促进一对多2-D光学平面的同时和可重新配置的通信。这一进步显着增加了光学平面互连的系统功能。这样的系统通过将几个多波长垂直腔表面发射激光器（VCSEL）并入每个发射像素并且将波长选择性并入到将吸收一个波长并且对其余部分透明的每个后续检测平面中来实现; 这些结构可以通过轻微修改现有技术来制造。该系统允许在许多平面之间同时进行可重新配置的增强的处理功能; 广播和动态独立互连因此被启用。

73. 发明授权

US5495356A Multidimensional switching networks 失效
公开(公告)号：US5495356A
公开(公告)日：1996-02-27
申请号：US55730
申请日：1993-04-30
申请人： Jacob Sharony , Yao Li
发明人： Jacob Sharony , Yao Li
IPC分类号： H04B10/02 , H04Q3/52 , H04Q11/00 , H04J14/00 , H04J14/08
CPC分类号： H04Q11/0005 , H04Q2011/0009 , H04Q2011/0015 , H04Q2011/0018 , H04Q2011/0022 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0047
摘要： A switching network that utilizes at least three degrees of freedom, time, wavelength and space. In one embodiment that involves point-to-point switching, each space channel between an input and an output is assigned a time slot and wavelength coordinate characteristic of the output and the input transmitter and output receiver are tuned to the appropriate time and wavelength coordinates and selective switching is used to complete the space channel between the input and output. In another embodiment for generalized switching, each input channel is assigned a set of space, time slot and wavelength coordinates and an input signal is broadcast to all of the outputs which selectively makes connection to those inputs with an appropriate set of coordinates.

74. 发明授权

US09998252B2 Apparatus and manufacturing method for an integrated multicast switch, for use in reconfigurable optical add-drop networks 有权
公开(公告)号：US09998252B2
公开(公告)日：2018-06-12
申请号：US14497032
申请日：2014-09-25
申请人： DiCon Fiberoptics, Inc.
发明人： Ho-Shang Lee
IPC分类号： H04J14/00 , H04J14/02 , H04Q11/00 , G02B6/30 , G02B6/35 , G02B6/36 , G02B6/12
CPC分类号： H04J14/0212 , G02B6/30 , G02B6/3512 , G02B6/3546 , G02B6/3636 , G02B2006/1215 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/003 , H04Q2011/0035 , H04Q2011/0047
摘要： In one embodiment, each of the output/input ports of each one of a plurality of optical splitters is connected to one of a plurality of optical switches by means of optical fibers without any fusion splicing in a majority of the optical fibers, and each of the input/output ports of each one of the switches is connected to one of the optical splitters by means of the optical fibers without any fusion splicing in a majority of the optical fibers. Each of the output/input ports of each one of the optical splitters may be directly connected to the ferrule and one of the input/output ports of one of the switches by the optical fibers. The optical splitters may be implemented in at least one planar lightwave circuit (PLC) chip. Optionally, at least one fiber holder defining a plurality of channels therein may be used to hold the optical fibers each of which is aligned with a corresponding output/input port of one of the optical splitters.

75. 发明授权

US09948457B2 Extending data over cable service interface specification (DOCSIS) provisioning of ethernet passive optical network (EPON) (DPoE) to EPON over coax (EPoC) multicast key management 有权
公开(公告)号：US09948457B2
公开(公告)日：2018-04-17
申请号：US15587054
申请日：2017-05-04
申请人： Futurewei Technologies, Inc.
发明人： Yanbin Sun , Guangsheng Wu , Li Zhang , Fanglin Sun , Jim Chen
IPC分类号： H04L9/08 , H04L29/06
CPC分类号： H04L9/0822 , H04L9/0819 , H04L9/0833 , H04L9/0891 , H04L12/18 , H04L63/0428 , H04L63/065 , H04L2463/062 , H04Q11/0067 , H04Q2011/0047 , H04Q2011/0079
摘要： An optical line terminal (OLT) including a processor coupled to a transmitter. The processor is configured to send a first encrypted fiber to coax unit (FCU) message containing an optical domain multicast key to an FCU via an optical network. The optical domain multicast key is associated with encryption in an optical domain associated with the optical network. The processor is also configured to send a second encrypted FCU message containing an electrical domain multicast key to the FCU, and to send an encrypted coax network unit (CNU) message containing the electrical domain multicast key to a CNU via the FCU and a coaxial network. The electrical domain multicast key is associated with encryption in an electrical domain associated with the coaxial network. The first and second encrypted FCU messages and the encrypted CNU message may be operations, administration and maintenance (OAM) messages.

76. 发明授权

US09854337B1 Method for constructing an AWG based N×N non-blocking optical multicast switching network 有权
公开(公告)号：US09854337B1
公开(公告)日：2017-12-26
申请号：US15344891
申请日：2016-11-07
申请人： Shanghai Jiao Tong University
发明人： Tong Ye , Tony T. Lee , Weisheng Hu
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0047 , H04Q2011/0058
摘要： A method for constructing an AWG based non-blocking optical multicast switching network, comprising constructing a non-blocking optical copy network via a wavelength replication module and an arrayed waveguide grating recursively and constructing a non-blocking optical multicast switching network via cascading a data copy network with a point-to-point switching network. The number of active optical devices required for constructing an N×N optical switching network with r input/output ports and with each port carrying m wavelengths is just O(N logm N), realizing system scalability and saving hardware cost and power consumption. By splitting the routing path of the multicast network into a routing path with O(1) complexity in the copy network and a routing path in a point-to-point unicast switching network, the routing complexity of the multicast switching network is equivalent to that of a unicast switching network.

77. 发明授权

US09774932B2 Method and apparatus for data packet switching, access switch and switching system 有权
公开(公告)号：US09774932B2
公开(公告)日：2017-09-26
申请号：US14981367
申请日：2015-12-28
申请人： Huawei Technologies Co., Ltd.
发明人： Xiaoling Yang , Huixiao Ma , Dongyu Geng
IPC分类号： H04Q11/00 , H04L12/46 , H04L12/64 , H04L12/741 , H04L12/721 , H04L12/931
CPC分类号： H04Q11/0071 , H04L12/462 , H04L12/4625 , H04L12/6418 , H04L45/66 , H04L45/745 , H04L49/201 , H04Q11/0003 , H04Q11/0062 , H04Q11/0066 , H04Q2011/0047 , H04Q2011/0064 , H04Q2011/0073 , H04Q2011/0088
摘要： The present invention provides a method and an apparatus for data packet switching, and an access switch and a switching system, so as to satisfy requirements of a datacenter for a switching bandwidth and a switching granularity. The method includes: receiving MAC frame control information; determining an interface used for forwarding an MAC frame according to the MAC frame control information and through performing a query on a MAC address forwarding table, where the interface used for forwarding the MAC frame includes a downlink interface, an uplink electrical packet switching network interface and/or an uplink optical packet switching network interface; transmitting a control signal to an electrical packet switching unit, so that the MAC frame is forwarded to the determined interface. According to the method provided in the present invention, the utilization rate of each interface can be improved.

78. 发明授权

US09742520B1 Optical switching system with a colorless, directionless, and contentionless ROADM connected to unamplified drop channels 有权
公开(公告)号：US09742520B1
公开(公告)日：2017-08-22
申请号：US14858086
申请日：2015-09-18
申请人： NeoPhotonics Corporation
发明人： Winston Way , Ilya Vorobeichik
IPC分类号： H04J14/02 , H04Q11/00 , H04L1/00
CPC分类号： H04J14/0221 , H04J14/0204 , H04J14/0212 , H04J14/0219 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0047 , H04Q2011/0084
摘要： Components of an optical communications network are described at a node of the network providing switching from one or more degrees of received optical signal routed to a plurality of receivers. The switch at the node generally includes a passive reconfigurable optical add drop multiplexer (ROADM) having drop or output ports that connector to optical channels leading to optical receivers without optical amplifiers between the ROADM outputs and the receivers. Configurations of the node and corresponding parameters are described that provide for use of lower cost components due to the absence of an array of optical amplifiers connected to the ROADM outputs.

79. 发明申请

US20170237557A1 Extending Data Over Cable Service Interface Specification (DOCSIS) Provisioning of Ethernet Passive Optical Network (EPON) (DPoE) to EPON over Coax (EPoC) Multicast Key Management 有权
公开(公告)号：US20170237557A1
公开(公告)日：2017-08-17
申请号：US15587054
申请日：2017-05-04
申请人： Futurewei Technologies, Inc.
发明人： Yanbin Sun , Guangsheng Wu , Li Zhang , Fanglin Sun , Jim Chen
IPC分类号： H04L9/08 , H04L29/06
CPC分类号： H04L9/0822 , H04L9/0819 , H04L9/0833 , H04L9/0891 , H04L12/18 , H04L63/0428 , H04L63/065 , H04L2463/062 , H04Q11/0067 , H04Q2011/0047 , H04Q2011/0079
摘要： An optical line terminal (OLT) including a processor coupled to a transmitter. The processor is configured to send a first encrypted fiber to coax unit (FCU) message containing an optical domain multicast key to an FCU via an optical network. The optical domain multicast key is associated with encryption in an optical domain associated with the optical network. The processor is also configured to send a second encrypted FCU message containing an electrical domain multicast key to the FCU, and to send an encrypted coax network unit (CNU) message containing the electrical domain multicast key to a CNU via the FCU and a coaxial network. The electrical domain multicast key is associated with encryption in an electrical domain associated with the coaxial network. The first and second encrypted FCU messages and the encrypted CNU message may be operations, administration and maintenance (OAM) messages.

80. 发明申请

US20170222747A1 DEVICE, SYSTEM AND METHOD FOR TRANSMITTING WAVELENGTH DIVISION MULTIPLEXED OPTICAL SIGNAL 有权
公开(公告)号：US20170222747A1
公开(公告)日：2017-08-03
申请号：US15373725
申请日：2016-12-09
申请人： FUJITSU LIMITED
发明人： Yuki BAN , Yuji SHIMADA
IPC分类号： H04J14/02 , H04Q11/00
CPC分类号： H04J14/021 , H04J14/0212 , H04J14/0217 , H04J14/0283 , H04J14/0287 , H04J14/0289 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0043 , H04Q2011/0047
摘要： A transmission device for which a work path is established in a first degree and a protection path is established in a second degree includes: a switch equipped with a plurality of optical ports; an optical signal generator, optically connected to a first optical port, and configured to generate an optical signal that is transmitted through the work path; and a monitor light generator, optically connected to a second optical port, and configured to generate monitor light by using a wavelength tunable light source. The monitor light generator controls a wavelength of the monitor light to be substantially the same as a wavelength of the optical signal. The switch guides the optical signal that arrives at the first optical port toward the first degree and guides the monitor light that arrives at the second optical port toward the second degree.

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