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公开(公告)号：US07529489B2
公开(公告)日：2009-05-05
申请号：US11162744
申请日：2005-09-21
IPC分类号： H04B10/00
CPC分类号： H04J3/1611 , H04J2203/0012 , H04J2203/0082 , H04L12/5692
摘要： A transponder unit which relays signals between a plurality of channels of an optical transport network and a plurality of clients. The interconnections within the transponder unit are reconfigurable for selective connections. A connection between a first client and a first network channel and a connection between a second client and a second network channel is independent of each other and may be selected so that the second client is connected to the first network channel and the first client is connected to the second network channel. Other selected connections are also possible.
摘要翻译： 一种在光传输网络的多个信道和多个客户端之间中继信号的应答器单元。 应答器单元内的互连可重新配置用于选择性连接。 第一客户端和第一网络信道之间的连接以及第二客户端与第二网络信道之间的连接彼此独立，并且可以被选择，使得第二客户端连接到第一网络信道，并且第一客户端被连接 到第二个网络通道。 其他选择的连接也是可能的。
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公开(公告)号：US08971721B2
公开(公告)日：2015-03-03
申请号：US13320341
申请日：2009-05-20
IPC分类号： H04B10/00 , H04B10/516 , H04B10/2587 , H04B10/27 , H04B10/272 , H04B10/50 , H04B10/58 , H04J14/02 , H04B10/06
CPC分类号： H04B10/516 , H04B10/2587 , H04B10/27 , H04B10/272 , H04B10/504 , H04B10/58 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A method for bidirectional optical communication comprising the steps of:—at a first optical line terminal, directly modulating a laser source to generate a downstream optical signal which has an optical power spectrum comprising two peaks having a frequency separation and a non zero power difference at generation;—propagating said downstream optical signal at a distance along an optical line comprising at least a first optical fiber propagating said downstream optical signal to a second optical line terminal;—at the second optical line terminal: power splitting said downstream optical signal to generate a first and a second power portion of said downstream optical signal, spatially separated; passive filtering said first power portion of said downstream optical signal so as to increase in absolute value a respective power difference of said two peaks, so as to obtain a filtered optical signal which is thereafter detected; and amplitude modulating the second power portion of the downstream optical signal so as to obtain an upstream optical signal having a second amplitude modulation;—propagating back along said optical line the upstream optical signal to the first optical line terminal;—at said first optical line terminal, detecting said upstream optical signal; wherein the method further comprises the step of passive filtering said downstream optical signal and/or said second power portion of the downstream optical signal and/or said upstream optical signal, so as to lower, in absolute value, a respective non zero power difference of said two peaks.
摘要翻译： 一种用于双向光通信的方法，包括以下步骤：在第一光线路终端处，直接调制激光源以产生下行光信号，所述下行光信号具有包括频率分离和非零功率差异的两个峰值的光功率谱 将所述下游光信号沿着包括至少第一光纤的光路线的一段距离传播到第二光线路终端;在第二光线路终端处：将所述下行光信号功率分配以产生 所述下游光信号的第一和第二功率部分在空间上分离; 无源滤波所述下行光信号的第一功率部分，以便绝对值增加所述两个峰值的相应功率差，从而获得随后检测的滤波后的光信号; 以及对下游光信号的第二功率部分进行幅度调制，以获得具有第二幅度调制的上行光信号;沿所述光线路向上移动上游光信号到第一光线路终端; - 在所述第一光线路 终端，检测所述上游光信号; 其中所述方法还包括以下步骤：对所述下游光信号和/或所述上游光信号的所述下游光信号和/或所述第二功率部分进行无源滤波，以便以绝对值降低相应的非零功率差 说了两个高峰。
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3.发明申请公开(公告)号：US20140056584A1
公开(公告)日：2014-02-27
申请号：US14005122
申请日：2011-03-15
IPC分类号： H04J14/02
CPC分类号： H04J14/0212 , H04J14/0213 , H04J14/0217 , H04Q11/0005 , H04Q2011/0039 , H04Q2011/0058
摘要： A reconfigurable optical add-drop multiplexer (10) comprising an input (20), an output (22), drop outputs (30), add inputs (22), a demultiplexer (18), a cross-connect element (12), a drop element (34) and an add element (26). The cross-connect element (12) comprises cross-connect outputs (36), a by-pass output (38), and optical switches (14) connected together as a first switch array. The drop element (34) comprises optical switches (14) connected together as a second switch array. The add element (26) comprises optical switches (14) connected together as a third switch array. Each optical switch (14) comprises a first input (13), a second input (15), a first output (17) and a second output (19). Each optical switch is arranged to deliver a first optical signal received at the first input to the first output. Each optical switch (14) is arranged to receive a respective control signal arranged to cause the optical switch to route a second optical signal received at its second input to a selected one of its first output and its second output.
摘要翻译： 一种可重新配置的光分插复用器（10），包括输入（20），输出（22），输出输出（30），加法输入（22），解复用器（18），交叉连接元件（12） 下降元件（34）和添加元件（26）。 交叉连接元件（12）包括作为第一开关阵列连接在一起的交叉连接输出（36），旁路输出（38）和光开关（14）。 液滴元件（34）包括作为第二开关阵列连接在一起的光开关（14）。 添加元件（26）包括作为第三开关阵列连接在一起的光开关（14）。 每个光开关（14）包括第一输入（13），第二输入（15），第一输出（17）和第二输出（19）。 每个光开关被布置成将在第一输入处接收的第一光信号传送到第一输出端。 每个光开关（14）被布置成接收相应的控制信号，该控制信号被布置成使得光开关将在其第二输入处接收到的第二光信号路由到其第一输出及其第二输出中的所选择的一个。
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公开(公告)号：US07660526B2
公开(公告)日：2010-02-09
申请号：US10987181
申请日：2004-11-12
IPC分类号： H04J14/00
CPC分类号： H04J14/0297 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0213 , H04J14/0221 , H04J14/0227 , H04J14/0228 , H04J14/0238 , H04J14/0283
摘要： At a WDM add/drop node of an optical fiber, an add/drop multiplexer system with opto-electric components in the through channel path has an optical switch connected in parallel with an add/drop multiplexer. Upon a power loss to the add/drop multiplexer, the optical switch bypasses the add/drop multiplexer so that WDM channel signals pass through the WDM add/drop node without interference from the unpowered add/drop multiplexer. Loss of through channels at the node is prevented. Upon a return of power, the optical switch reroutes the WDM signals on the optical fiber to the add/drop multiplexer but after the add/drop multiplexer is fully operational.
摘要翻译： 在光纤的WDM添加/分出节点处，在通道路径中具有光电组件的分插复用器系统具有与分插复用器并联连接的光开关。 在分插复用器的功率损耗时，光开关绕过加/减多路复用器，使得WDM信道信号通过WDM加/减节点，而不受无功分插复用器的干扰。 阻止节点处的通道丢失。 在电源恢复时，光开关将光纤上的WDM信号重新路由到分插复用器，但在分插复用器完全运行之后。
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5.发明申请Mechanism for Tracking Wavelengths in a DWDM Network Without Specialized Hardware 有权在没有专业硬件的情况下，在DWDM网络中跟踪波长的机制公开(公告)号：US20080131126A1
公开(公告)日：2008-06-05
申请号：US11566400
申请日：2006-12-04
申请人： Ornan Gerstel , Stefano Piciaccia , Mauro Rudi Casanova , Valerio Viscardi , Gabriele Galimberti
发明人： Ornan Gerstel , Stefano Piciaccia , Mauro Rudi Casanova , Valerio Viscardi , Gabriele Galimberti
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04J14/0221 , H04J14/028 , H04J14/0284
摘要： In one embodiment, techniques provide a mechanism for tracking wavelengths in a DWDM network. In particular, embodiments of the present invention also provide for connection tracking using a fast pilot tone in a DWDM network without dedicated hardware for the generation and the diction of the tone.
摘要翻译： 在一个实施例中，技术提供了用于跟踪DWDM网络中的波长的机制。 特别地，本发明的实施例还提供了在DWDM网络中使用快速导频音调的连接跟踪，而没有用于音调的生成和分类的专用硬件。
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公开(公告)号：US09112636B2
公开(公告)日：2015-08-18
申请号：US14116726
申请日：2011-11-21
CPC分类号： H04J14/0212 , H04J14/0217 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0039 , H04Q2011/0058
摘要： An apparatus for an optical communications network comprising a demultiplexer, a plurality of add/drop optical switches for adding and dropping wavelength channels. The add/drop optical switches arranged in a matrix with a number of rows corresponding to a number of output ports of the demultiplexer and a number of columns corresponding to a number of transponders. Each drop optical switch has an express input port associated with an output port of the demultiplexer, a drop output port associated with an individual transponder, and an express output port. Each add optical switch has an express input port, an add input port associated with an individual transponder, and an express output port. The apparatus also comprises a multiplexer with a plurality of input ports associated with express output ports of the add/drop optical switches.
摘要翻译： 一种用于光通信网络的装置，包括解复用器，多个用于添加和删除波长信道的分插光开关。 所述分插光开关被布置成具有与多路分解器的输出端口的数量相对应的行数的矩阵，以及与多个转发器对应的列数。 每个分支光交换机具有与多路分解器的输出端口相关联的快速输入端口，与单个应答器相关联的分支输出端口和快速输出端口。 每个添加光开关具有快速输入端口，与单个应答器相关联的添加输入端口和快速输出端口。 该装置还包括多路复用器，其具有与分插光开关的快速输出端口相关联的多个输入端口。
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7.发明授权Optical add/drop multiplexer with reconfigurable add wavelength selective switch 有权具有可重新配置的波长选择开关的光分插复用器公开(公告)号：US07634196B2
公开(公告)日：2009-12-15
申请号：US10959366
申请日：2004-10-06
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0213 , H04J14/0219 , H04J14/0221 , H04Q2011/0075
摘要： A reconfigurable WDM add/drop multiplexer and its method of operation at an add/drop node on an optical fiber carrying a plurality of WDM signals is described. The WDM add/drop multiplexer has a coupler and a demultiplexer element dropping WDM signals from the optical fiber to a plurality of drop terminals, and a wavelength-selective switch adding WDM signals from a plurality of add terminals onto the optical fiber. The coupler splits the WDM signals received from the optical fiber and passes the split WDM signals to the first and second output terminals. The demultiplexer element separates the split WDM signals at the plurality of drop terminals. The wavelength-selective switch, which has an input terminal for connection to the second coupler output terminal and an output terminal for connection to the optical fiber, selectively adds WDM signals on the plurality of add terminals to the optical fiber responsive to control signals.
摘要翻译： 描述了可重配置的WDM分插复用器及其在携带多个WDM信号的光纤上的加/减节点上的操作方法。 WDM分插复用器具有耦合器和解复用器元件，其将来自光纤的WDM信号丢弃到多个液滴端子，以及波长选择开关，将来自多个添加端子的WDM信号添加到光纤上。 耦合器分离从光纤接收的WDM信号，并将分离的WDM信号传送到第一和第二输出端。 解复用器元件分离多个分接端子处的分离WDM信号。 具有用于连接到第二耦合器输出端子的输入端子和用于连接到光纤的输出端子的波长选择开关响应于控制信号选择性地将多个添加端子上的WDM信号添加到光纤。
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公开(公告)号：US06583899B1
公开(公告)日：2003-06-24
申请号：US09473050
申请日：1999-12-28
IPC分类号： H04B1008
CPC分类号： H04B10/2931 , H04B10/077 , H04B10/07955
摘要： An optical communication system and method for starting up and shutting down the system to ensure safety during repair of a fiber break are disclosed. A technique for shutting down an optical communication system having spans of optical transmission fiber interspersed serially between optical transformation sites and a plurality of amplifier sites includes shutting down both amplifiers on either side of a fiber disruption and both amplifiers in the same amplifier sites serving transmission in an opposite direction, followed by deactivation of all amplifiers within the same optical line between optical transformation sites. During startup, amplifiers enter an operating mode to ignore a system shutdown signal, an amplifier at a terminal site is forced on, and then successive amplifiers step through an intermediate safe power level before reaching full operating power.
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公开(公告)号：US20120128359A1
公开(公告)日：2012-05-24
申请号：US13320341
申请日：2009-05-20
CPC分类号： H04B10/516 , H04B10/2587 , H04B10/27 , H04B10/272 , H04B10/504 , H04B10/58 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： A method for bidirectional optical communication comprising the steps of:—at a first optical line terminal, directly modulating a laser source to generate a downstream optical signal which has an optical power spectrum comprising two peaks having a frequency separation and a non zero power difference at generation;—propagating said downstream optical signal at a distance along an optical line comprising at least a first optical fiber propagating said downstream optical signal to a second optical line terminal;—at the second optical line terminal: power splitting said downstream optical signal to generate a first and a second power portion of said downstream optical signal, spatially separated; passive filtering said first power portion of said downstream optical signal so as to increase in absolute value a respective power difference of said two peaks, so as to obtain a filtered optical signal which is thereafter detected; and amplitude modulating the second power portion of the downstream optical signal so as to obtain an upstream optical signal having a second amplitude modulation;—propagating back along said optical line the upstream optical signal to the first optical line terminal;—at said first optical line terminal, detecting said upstream optical signal; wherein the method further comprises the step of passive filtering said downstream optical signal and/or said second power portion of the downstream optical signal and/or said upstream optical signal, so as to lower, in absolute value, a respective non zero power difference of said two peaks.
摘要翻译： 一种用于双向光通信的方法，包括以下步骤：在第一光线路终端处，直接调制激光源以产生下行光信号，所述下行光信号具有包括频率分离和非零功率差异的两个峰值的光功率谱 将所述下游光信号沿着包括至少第一光纤的光路线的一段距离传播到第二光线路终端;在第二光线路终端处：将所述下行光信号功率分配以产生 所述下游光信号的第一和第二功率部分在空间上分离; 无源滤波所述下行光信号的第一功率部分，以便绝对值增加所述两个峰值的相应功率差，从而获得随后检测的滤波后的光信号; 以及对下游光信号的第二功率部分进行幅度调制，以获得具有第二幅度调制的上行光信号;沿所述光线路向上移动上游光信号到第一光线路终端; - 在所述第一光线路 终端，检测所述上游光信号; 其中所述方法还包括以下步骤：对所述下游光信号和/或所述上游光信号的所述下游光信号和/或所述第二功率部分进行无源滤波，以便以绝对值降低相应的非零功率差 说了两个高峰。
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公开(公告)号：US07542653B2
公开(公告)日：2009-06-02
申请号：US11467996
申请日：2006-08-29
CPC分类号： H04Q11/0005 , G02B6/4452 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0217 , H04Q1/149 , H04Q2011/0052
摘要： A mesh optical network node has switch cards which carry active components, such as wavelength routers to switch the paths of optical signals through the node and a fiber organizer handles the numerous optical fiber interconnections among the switch cards. The fiber organizer has no active components and can include optical paths to verify not only that a switch card connection to the fiber organizer has been made but that the connection is properly made.
摘要翻译： 网格光网络节点具有交换卡，其携带诸如波长路由器的活动组件以切换通过节点的光信号的路径，并且光纤组织器处理交换机卡中的多个光纤互连。 光纤管理器没有有源组件，并且可以包括光路以验证不仅已经制造了到光纤管理器的开关卡连接，而且连接正确地进行。
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