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公开(公告)号：US06298038B1
公开(公告)日：2001-10-02
申请号：US08847529
申请日：1997-04-24
申请人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
发明人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
IPC分类号： H04J116
CPC分类号： H04J14/0293 , H04J3/085 , H04J3/1611 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J2203/0057 , H04J2203/0089
摘要： A configuration for a transport node of a telecommunication system comprises a pair of transparent mux/demuxs provided at two sites and connected over a high rate span. The T-Muxs provide continuity of all tribs and maintain a lower bit rate linear or ring system through the higher bit rate span. The lower bit rate linear or ring system operates as if it were directly connected without the higher bit rate midsection. For the forward direction of the traffic, the T-Mux comprises a multi-channel receiver for receiving a the trib signals and providing for each trib signal a trib data signal and a trib OAM&P signal. The data signals are multiplexed into a supercarrier data signal and the OAM&P signals are processed to generate a supercarrier OAM&P signal. A supercarrier transmitter maps the supercarrier data signal and the supercarrier OAM&P signal into a supercarrier signal and transmits same over the high rate span. Reverse operations are effected for the reverse direction of traffic. With this invention, an entire ring system does not have to be upgraded to a higher line rate due to fiber exhaust on a single span. The invention is particularly applicable to SONET OC-48/OC-12/OC-3 linear and ring networks and the high rate span could be an OC-192 line.
摘要翻译： 电信系统的传输节点的配置包括一对在两个站点处提供并且以高速率跨度连接的透明复用/解复用。 T-Muxs提供所有部落的连续性，并通过更高的比特率跨度维持较低的比特率线性或环形系统。 较低比特率的线性或环形系统就像在没有较高比特率中段时直接连接一样工作。 对于交通的向前方向，T-Mux包括一个多通道接收器，用于接收三维信号，并为每个信号提供一个三维数据信号和一个三维OAM＆P信号。 数据信号被多路复用为超载波数据信号，并且OAM＆P信号被处理以产生超载波OAM和P信号。 超载波发射机将超载波数据信号和超载波OAM＆P信号映射成超载波信号，并在高速率范围内传输。 对于交通的相反方向进行反向操作。 利用本发明，由于在单个跨度上的纤维排气，整个环系统不必升级到更高的线路速率。 本发明特别适用于SONET OC-48 / OC-12 / OC-3线性和环形网络，高速率跨度可以是OC-192线路。
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公开(公告)号：US06205158B1
公开(公告)日：2001-03-20
申请号：US08994760
申请日：1997-12-19
申请人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
发明人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
IPC分类号： H04J302
CPC分类号： H04J3/085 , H04J2203/0042 , H04J2203/006 , Y10S370/907
摘要： Architectures for a synchronous transport network of a telecommunications system using transparent transport capabilities are presented. The telecommunications network comprises a pair of transparent multiplexers (TMuxs) connected over a bidirectional high speed span for transparently transporting high rate traffic. Each TMux consolidates traffic from a plurality (I) of linear systems or a plurality of bidirectional self-healing rings, each ring (Ki) having a ring rate Ri and at least two nodes (Ai, Bi). In another configuration, each TMux subtends a plurality of rings, such TMuxes being adapted for connection as ring nodes in a high-speed ring. The upgrades obtained with TMuxes in both the linear and ring configurations provide for per span relief for fiber exhaust where no changes to the existing systems are desired. As well, the bandwidth of an existing system may be increased on a per-span basis or the equipment count may be reduced.
摘要翻译： 提出了使用透明传输能力的电信系统的同步传输网络的架构。 电信网络包括通过双向高速跨段连接的一对透明多路复用器（TMux），用于透明地传输高速率业务。 每个TMux整合来自多个（I）线性系统或多个双向自愈环的流量，每个环（Ki）具有环速率Ri和至少两个节点（Ai，Bi）。 在另一种配置中，每个TMux对应多个环，这样的TMux适于作为高速环中的环形节点连接。 在线性和环形配置中使用TMuxes进行的升级提供了对于不需要对现有系统进行任何改变的纤维废气的每跨度浮雕。 同样，现有系统的带宽可以在每个跨度的基础上增加，或者可以减少设备数量。
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公开(公告)号：US5841760A
公开(公告)日：1998-11-24
申请号：US847526
申请日：1997-04-24
申请人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
发明人： David Wright Martin , Mohammed Ismael Tatar , Alan Glen Solheim , Timothy James Armstrong , Mark Stephen Wight , Ronald J. Gagnon , David John Nicholson
CPC分类号： H04J3/1611 , H04J3/085 , H04J2203/0057 , H04J2203/0089
摘要： A configuration for a SONET transport node comprises a pair of transparent mux/demuxs provided at two sites and connected over a high rate span. The T-Muxs provide continuity of all tribs and maintain a lower bit rate linear or ring system through the higher bit rate span. The lower bit rate linear or ring system operates as if it were directly connected without the higher bit rate midsection. For the forward direction of the traffic, the T-Mux comprises a multi-channel receiver for receiving the trib signals and providing for each trib signal a trib SPE and a trib OH. The trib SPEs are multiplexed into a supercarrier SPE and the trib OHs signals are processed to generate a supercarrier OH. A supercarrier transmitter maps the supercarrier SPE and the supercarrier OH into a supercarrier signal and transmits same over the high rate span. Reverse operations are effected for the reverse direction of traffic. With this invention, an entire ring system does not have to be upgraded to a higher line rate due to fiber exhaust on a single span. The invention is particularly applicable to OC-48/OC-12/OC-3 linear and ring networks and the high rate span could be an OC-192 line.
摘要翻译： 用于SONET传输节点的配置包括在两个站点处提供并在高速率跨度上连接的一对透明多路复用器/解复用器。 T-Muxs提供所有部落的连续性，并通过更高的比特率跨度维持较低的比特率线性或环形系统。 较低比特率的线性或环形系统就像在没有较高比特率中段时直接连接一样工作。 对于交通的正向，T-Mux包括一个多通道接收器，用于接收三维信号，并为每个三星信号提供一个SPE和一个部落OH。 多个SPE被复用到超载体SPE中，并且处理各个OHs信号以产生超载体OH。 超载波发射机将超载波SPE和超载波OH映射到超载波信号中并在高速率范围内传输。 对于交通的相反方向进行反向操作。 利用本发明，由于在单个跨度上的纤维排气，整个环系统不必升级到更高的线路速率。 本发明特别适用于OC-48 / OC-12 / OC-3线性和环形网络，高速率跨度可以是OC-192线路。
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4.发明授权公开(公告)号：US08396359B2
公开(公告)日：2013-03-12
申请号：US13043136
申请日：2011-03-08
IPC分类号： H04B10/04
CPC分类号： H04J14/0241 , H04J14/0227 , H04J14/0257 , H04J14/0267 , H04J14/0269 , H04J14/0284 , H04Q11/0062 , H04Q2011/0083
摘要： A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along this end-to-end route. An operational parameter of the communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above the margin tolerance. The established path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection. An adaptive channel power turn-on procedure provides for increasing gradually the power level of the transmitters in the path while measuring an error quantifier at the destination receiver until a preset error quantifier value is reached. As the connection ages, the power is increased so as to maintain the error quantifier at, or under the preset value. The path operation is controlled using a plurality of optical power/gain control loops, each for monitoring and controlling a group of optical devices, according to a set of loop rules.
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5.发明申请Method For Engineering Connections In A Dynamically Reconfigurable Photonic Switched Network 失效在动态可重构光子切换网络中的工程连接方法公开(公告)号：US20110182576A1
公开(公告)日：2011-07-28
申请号：US13043136
申请日：2011-03-08
IPC分类号： H04B10/08
CPC分类号： H04J14/0241 , H04J14/0227 , H04J14/0257 , H04J14/0267 , H04J14/0269 , H04J14/0284 , H04Q11/0062 , H04Q2011/0083
摘要： A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along this end-to-end route. An operational parameter of the communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above the margin tolerance. The established path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection. An adaptive channel power turn-on procedure provides for increasing gradually the power level of the transmitters in the path while measuring an error quantifier at the destination receiver until a preset error quantifier value is reached. As the connection ages, the power is increased so as to maintain the error quantifier at, or under the preset value. The path operation is controlled using a plurality of optical power/gain control loops, each for monitoring and controlling a group of optical devices, according to a set of loop rules.
摘要翻译： 用于通过链路连接的具有多个灵活性站点的WDM光子网络中的连接工程的方法包括计算源节点和目的地节点之间的物理端到端路由，并且沿着该端点建立通信路径， 端到端路由。 连续测试通信路径的操作参数，并将其与测试阈值进行比较。 只要操作参数高于边界容限，路径就被声明成立。 通过将操作参数与维护阈值进行比较来连续监视已建立的路径。 每当操作参数在相应的阈值以下时，再生器被切换到路径中，或者另一路径被分配给相应的连接。 自适应信道功率接通程序提供在目的地接收机测量误差量化器时逐渐增加路径中的发射机的功率电平，直到达到预设的误差量化值。 随着连接老化，增加功率，以便将误差量化器保持在或低于预设值。 使用多个光功率/增益控制环控制路径操作，每个光功率/增益控制环根据一组循环规则来监视和控制一组光学设备。
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6.发明授权Method for engineering connections in a dynamically reconfigurable photonic switched network 有权在动态可重构光子交换网络中工程连接的方法公开(公告)号：US07941047B2
公开(公告)日：2011-05-10
申请号：US10159676
申请日：2002-05-31
IPC分类号： H04B10/04
CPC分类号： H04J14/0241 , H04J14/0227 , H04J14/0257 , H04J14/0267 , H04J14/0269 , H04J14/0284 , H04Q11/0062 , H04Q2011/0083
摘要： A method for engineering of a connection in a WDM photonic network with a plurality of flexibility sites connected by links comprises calculating a physical end-to-end route between a source node and a destination node and setting-up a communication path along this end-to-end route. An operational parameter of the communication path is continuously tested and compared with a test threshold. The path is declared established whenever the operational parameter is above the margin tolerance. The established path is continuously monitored by comparing the operational parameter with a maintenance threshold. A regenerator is switched into the path whenever the operational parameter is under the respective threshold, or another path is assigned to the respective connection. An adaptive channel power turn-on procedure provides for increasing gradually the power level of the transmitters in the path while measuring an error quantifier at the destination receiver until a preset error quantifier value is reached. As the connection ages, the power is increased so as to maintain the error quantifier at, or under the preset value. The path operation is controlled using a plurality of optical power/gain control loops, each for monitoring and controlling a group of optical devices, according to a set of loop rules.
摘要翻译： 用于通过链路连接的具有多个灵活性站点的WDM光子网络中的连接工程的方法包括计算源节点和目的地节点之间的物理端到端路由，并且沿着该端点建立通信路径， 端到端路由。 连续测试通信路径的操作参数，并将其与测试阈值进行比较。 只要操作参数高于边界容限，路径就被声明成立。 通过将操作参数与维护阈值进行比较来连续监视已建立的路径。 每当操作参数在相应的阈值以下时，再生器被切换到路径中，或者另一路径被分配给相应的连接。 自适应信道功率接通程序提供在目的地接收机测量误差量化器时逐渐增加路径中的发射机的功率电平，直到达到预设的误差量化值。 随着连接老化，增加功率，以便将误差量化器保持在或低于预设值。 使用多个光功率/增益控制环控制路径操作，每个光功率/增益控制环根据一组循环规则来监视和控制一组光学设备。
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公开(公告)号：US06734955B2
公开(公告)日：2004-05-11
申请号：US10058948
申请日：2002-01-28
IPC分类号： G01N2100
CPC分类号： G01M11/338 , G01M11/335
摘要： A device for measuring dispersion of a link between two switching nodes of an optical network comprises a phase measuring unit PMU for determining a first phase of a data signal traveling on a first wavelength &lgr;1, and a second phase of the same data signal traveling on a second wavelength &lgr;2, received consecutively over the link under measurement. A dispersion measurement controller controls operation of the phase measuring unit and characterizes the dispersion of the link at a wavelength of interest &lgr;=(&lgr;1+&lgr;2)/2, based on the first and second phases. The PMU includes a frame detector for determining a first and a second rotation signal indicative of the digital offset between the first and second test clocks with a respective frame start, and a phase detector for measuring the phase of these test clocks with respect to a static reference. The static reference is provided by the same data signal transmitted continuously over a reference wavelength. The test and reference clocks are 1:n divided to extend the range of the measurement. A method for characterizing the dispersion of a link of an optical network is also provided.
摘要翻译： 用于测量光网络的两个交换节点之间的链路的色散的设备包括相位测量单元PMU，用于确定在第一波长λ1上行进的数据信号的第一相位，以及在第一波长λ1上行进的相同数据信号的第二相位 第二波长λ2，连续地在测量的链路上接收。 色散测量控制器控制相位测量单元的操作，并且基于第一和第二相来表征在感兴趣的波长λ=（λ1+λ2）/ 2处的链路的色散。 PMU包括帧检测器，用于确定表示第一和第二测试时钟之间的数字偏移的第一和第二旋转信号与相应的帧开始;以及相位检测器，用于测量这些测试时钟相对于静态的相位 参考。 静态参考由在参考波长上连续传输的相同数据信号提供。 测试和参考时钟为1：n，以扩展测量范围。 还提供了用于表征光网络的链路的色散的方法。
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公开(公告)号：US06621621B1
公开(公告)日：2003-09-16
申请号：US09975362
申请日：2001-10-11
IPC分类号： H04B1012
CPC分类号： H04Q11/0062 , H01S3/2383 , H01S2301/04 , H04J14/0206 , H04J14/0212 , H04J14/0221 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04Q11/0071 , H04Q2011/0081 , H04Q2011/0083 , H04Q2011/0084
摘要： A line amplification system connected on the fiber between two flexibility sites of a wavelength switched network is built with a number of modules that can be arranged in a line amplifier, preamplifier and postamplifier configurations. The line and preamplifiers include a Raman module and a two-stage EDFA module provided with mid-stage access. A dynamic gain equalizer is connected in the mid-stage in the line amplification configurations. As well, dispersion compensating module may be connected in the mid-stage whenever/if needed. A line monitoring and control system operates the line amplification system so that all channels traveling along a link have substantially the same power, in the context of channels being added and removed to/from the line arbitrarily.
摘要翻译： 在波长交换网络的两个灵活性站点之间连接在光纤上的线路放大系统由多个可以布置在线路放大器，前置放大器和后置放大器配置中的模块构成。 线路和前置放大器包括拉曼模块和两级EDFA模块，提供中级接入。 动态增益均衡器在线路放大配置的中间阶段连接。 同样，每当需要时，色散补偿模块可以在中间阶段连接。 线路监测和控制系统操作线路放大系统，使得沿着链路行进的所有信道具有基本上相同的功率，在被任意地添加和从线路移除的信道的上下文中。
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公开(公告)号：US06192173B1
公开(公告)日：2001-02-20
申请号：US09324124
申请日：1999-06-02
IPC分类号： G02B628
CPC分类号： H04J14/0221 , H04J14/0219
摘要： A unidirectional or bidirectional node for use in an optical communications network, a network consisting of such nodes and a method of maintaining a target loss around a ring. The node comprises one or more optical couplers as well as either or both of drop circuitry connected to an output port and add circuitry connected to an input port. This allows for changes to the wavelength plan without interruption of the ring traffic. If add circuitry is used, the wavelengths in the filtered add signal should be distinct from those of the incoming signal on the main optical path which is merged with the add signal. When separate fibers are used for transmitting and receiving data between a hub and nodes in a ring, the through loss of the couplers is reduced for upstream couplers, which increases the available loss to be assigned to the fiber. The method of maintaining a target loss around a ring relies on the known through loss of the coupler at each node to set the gain of an amplifier connected to the node.
摘要翻译： 用于光通信网络中的单向或双向节点，由这种节点组成的网络以及围绕环路维持目标损耗的方法。 节点包括一个或多个光耦合器以及连接到输出端口的分路电路中的一个或两个，并且添加连接到输入端口的电路。 这允许波长计划的更改，而不会中断环网流量。 如果使用加法电路，滤波后的加法信号中的波长应与主光路上与加法信号合并的输入信号的波长不同。 当单独的光纤用于在一个环中的一个集线器和节点之间发送和接收数据时，上游耦合器的耦合器的通过损耗减少，这增加了分配给光纤的可用损耗。 在环周围保持目标损耗的方法依赖于每个节点处耦合器已知的通过损耗来设置连接到该节点的放大器的增益。
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公开(公告)号：US08526812B2
公开(公告)日：2013-09-03
申请号：US13491839
申请日：2012-06-08
IPC分类号： H04B10/08
CPC分类号： H04J14/0241 , H04J14/0221 , H04J14/0246 , H04J14/0257 , H04J14/0268 , H04J14/0269 , H04J14/0283 , H04J14/0284
摘要： The path selection and wavelength assignment to a selected path are performed by mapping the wavelength reach to the demand distribution (agile reach) resulting in a 50-60% increase in the network reach. The network reach is further increased (about 2.2 times) when on-line measured performance data are used for path selection and wavelength assignment. The connections may be engineered/upgraded individually, by optimizing the parameters of the entire path or of a regenerator section of the respective path. The upgrades include changing the wavelength, adjusting the parameters of the regenerator section, controlling the launch powers, mapping a certain transmitter and/or receiver to the respective wavelength, selecting the wavelengths on a certain link so as to reduce cross-talk, increasing wavelength spacing, etc.
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