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1. 发明授权

US07715713B1 Method and apparatus for providing multiple optical channel protection switching mechanisms in optical rings 有权
标题翻译：在光环中提供多个光通道保护切换机构的方法和装置
公开(公告)号：US07715713B1
公开(公告)日：2010-05-11
申请号：US10373594
申请日：2003-02-25
申请人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
发明人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
IPC分类号： H04J14/00
CPC分类号： H04J14/0293 , H04J14/0227 , H04J14/0283 , H04J14/0284 , H04J14/0286 , H04J14/0291 , H04J14/0294 , H04J14/0295
摘要： A technique for allocating protection-switching mechanisms operates on a per wavelength basis. This allows a designer of an optical network to select a particular protection switching mechanism for a given traffic type, which is usually specific to a particular wavelength in an optical network. For another traffic type, the designer can allocate a different protection switching mechanism, thereby providing optimal protection switching for each traffic type.
摘要翻译：用于分配保护切换机制的技术基于每个波长进行操作。这允许光网络的设计者为给定的业务类型选择特定的保护倒换机制，这通常是特定于光网络中特定波长的。对于另一种流量类型，设计者可以分配不同的保护倒换机制，从而为每个流量类型提供最佳保护切换。

2. 发明申请

US20100098406A1 METHOD AND APPARATUS FOR INTERCONNECTING A PLURALITY OF OPTICAL TRANSDUCERS WITH A WAVELENGTH DIVISION MULTIPLEXED OPTICAL SWITCH 审中-公开
标题翻译：用波导部分多路光纤开关互连多个光传感器的方法和装置
公开(公告)号：US20100098406A1
公开(公告)日：2010-04-22
申请号：US12620512
申请日：2009-11-17
申请人： Thomas Andrew Strasser , Paul Bonenfant , Per Bang Hansen , Torben N. Nielsen , Ken R. Roberts , Jefferson L. Wagener
发明人： Thomas Andrew Strasser , Paul Bonenfant , Per Bang Hansen , Torben N. Nielsen , Ken R. Roberts , Jefferson L. Wagener
IPC分类号： H04J14/00
CPC分类号： H04J14/0283 , G02B6/29367 , G02B6/2938 , G02B6/29383 , G02B6/29391 , G02B6/29395 , G02B6/3512 , G02B6/3548 , G02B6/356 , G02B6/357 , G02B6/3578 , G02B6/3582 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0217 , H04J14/022 , H04J14/0286 , H04L12/42 , H04L2012/421 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0052 , H04Q2011/0079 , H04Q2011/0092
摘要： In a WDM optical communication system that includes a plurality of nodes interconnected by communication links, a node is provided that includes a first plurality of transponders each generating and/or receiving an information-bearing optical signal at a different channel wavelength from one another. An optical coupling arrangement, which may include one or more reconfigurable optical switches, transfers the channel wavelengths between a link connected to the node and the first plurality of transponders. The arrangement is adaptable to reconfigure its operational state to selectively direct different ones of the channel wavelengths from the link to different ones of the transponders without disturbing the optical path through the node traversed by any other channel wavelengths. A communications and configuration arrangement is provided, which transfers data identifying the respective channel wavelengths at which the transponders operate from the transponders to the optical coupling arrangement. In response to the transferred data, the communications and configuration arrangement reconfigures the operational state of the optical coupling arrangement.
摘要翻译：在包括通过通信链路互连的多个节点的WDM光通信系统中，提供了包括第一多个转发器的节点，每个转发器生成和/或接收不同信道波长的信息承载光信号。可以包括一个或多个可重构光开关的光耦合装置在连接到节点的链路与第一多个转发器之间传送信道波长。该装置适于重新配置其操作状态，以选择性地将不同的信道波长从链路传送到不同的应答器，而不会干扰通过任何其它信道波长穿过的节点的光路径。提供了一种通信和配置装置，其将识别应答器操作的相应信道波长的数据从转发器传送到光耦合装置。响应于传送的数据，通信和配置布置重新配置光耦合装置的操作状态。

3. 发明授权

US07269346B1 Optical automatic protection switching mechanism for optical channel shared protection rings 有权
标题翻译：光通道共享保护环光学自动保护切换机制
公开(公告)号：US07269346B1
公开(公告)日：2007-09-11
申请号：US10199999
申请日：2002-07-19
申请人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
发明人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
IPC分类号： H04B10/00
CPC分类号： H04J14/0295 , H04J14/0227 , H04J14/0245 , H04J14/0249 , H04J14/0283
摘要： A method for performing protection switching in an optical network does so in an optimal manner by performing the protection switching actions in the various nodes of a protection path in parallel rather than in sequence. To do so, a channel failure message is transmitted from an end node A in the optical network upon detecting a failure in a link in the optical network that includes the end node A. If a failure can be detected at both end nodes, the channel failure messages are transmitted from both end nodes the moment they detect failure without any further waiting. Upon receiving the first channel failure message regardless its originating end node, switching actions in intermediate nodes are initiated. The channel failure messages are forwarded from the intermediate nodes to their corresponding next nodes before completing switching actions in the intermediate nodes. When receiving channel failure response messages, these messages are forwarded to a next node from the intermediate node only after switching actions are complete in the intermediate node. A technique for merging messages in nodes is also disclosed.
摘要翻译：用于在光网络中进行保护切换的方法通过以并行方式而不是依次执行保护路径的各个节点中的保护切换动作，以最佳方式进行。为此，在检测到包括终端节点A的光网络中的链路中的故障时，从光网络中的端节点A发送信道失败消息。如果可以在两端节点检测到故障，则信道故障消息从两端节点发送，无需进一步等待即可发现故障。在接收到第一信道故障消息而不管其始发端节点时，中间节点中的切换动作被启动。在完成中间节点之间的切换动作之前，将信道故障消息从中间节点转发到其对应的下一个节点。当接收到信道故障响应消息时，只有在中间节点中的交换动作完成后，才将这些消息从中间节点转发到下一个节点。还公开了一种在节点中合并消息的技术。

4. 发明授权

US07620323B2 Method and apparatus for interconnecting a plurality of optical transducers with a wavelength division multiplexed optical switch 有权
公开(公告)号：US07620323B2
公开(公告)日：2009-11-17
申请号：US10099890
申请日：2002-03-15
申请人： Thomas Andrew Strasser , Paul Bonenfant , Per Bang Hansen , Torben N. Nielsen , Ken R. Roberts , Jefferson L. Wagener
发明人： Thomas Andrew Strasser , Paul Bonenfant , Per Bang Hansen , Torben N. Nielsen , Ken R. Roberts , Jefferson L. Wagener
IPC分类号： H04J14/00
CPC分类号： H04J14/0283 , G02B6/29367 , G02B6/2938 , G02B6/29383 , G02B6/29391 , G02B6/29395 , G02B6/3512 , G02B6/3548 , G02B6/356 , G02B6/357 , G02B6/3578 , G02B6/3582 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0212 , H04J14/0217 , H04J14/022 , H04J14/0286 , H04L12/42 , H04L2012/421 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0052 , H04Q2011/0079 , H04Q2011/0092
摘要： In a WDM optical communication system that includes a plurality of nodes interconnected by communication links, a node is provided that includes a first plurality of transponders each generating and/or receiving an information-bearing optical signal at a different channel wavelength from one another. An optical coupling arrangement, which may include one or more reconfigurable optical switches, transfers the channel wavelengths between a link connected to the node and the first plurality of transponders. The arrangement is adaptable to reconfigure its operational state to selectively direct different ones of the channel wavelengths from the link to different ones of the transponders without disturbing the optical path through the node traversed by any other channel wavelengths. A communications and configuration arrangement is provided, which transfers data identifying the respective channel wavelengths at which the transponders operate from the transponders to the optical coupling arrangement. In response to the transferred data, the communications and configuration arrangement reconfigures the operational state of the optical coupling arrangement.

5. 发明授权

US07599619B2 Wavelength division multiplexed optical communication system having a reconfigurable optical switch and a tunable backup laser transmitter 有权
公开(公告)号：US07599619B2
公开(公告)日：2009-10-06
申请号：US10099561
申请日：2002-03-15
申请人： Thomas Andrew Strasser , Paul Bonenfant , Jefferson L. Wagener
发明人： Thomas Andrew Strasser , Paul Bonenfant , Jefferson L. Wagener
IPC分类号： H04J14/00
CPC分类号： G02B6/356 , G02B6/29305 , G02B6/29367 , G02B6/29395 , G02B6/3512 , G02B6/3548 , G02B6/357 , G02B6/3578 , G02B6/4215 , H04J14/021 , H04J14/0212 , H04J14/0279 , H04J14/0295 , H04J14/0297 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0018 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0081
摘要： In a WDM optical communication system that includes a plurality of nodes interconnected by communication links, a node is provided that includes a reconfigurable optical switch having a plurality of input ports and at least one output port. The node also includes a plurality of transmitters that are each coupled to one of the input ports of the optical switch. Each of the transmitters generate an information-bearing optical signal at a different channel wavelength from one another. The reconfigurable optical switch is adaptable to receive at any of the input ports any of the channel wavelengths at which the plurality of transmitters operate and direct the channel wavelengths to the output port. At least one backup transmitter is coupled to one of the input ports of the optical switch. The backup transmitter includes a tunable laser tunable to any of the channel wavelengths at which the plurality of transmitters operate. The reconfigurable optical switch includes at least one wavelength selective element that selects at least one channel wavelength from among any of the channel wavelengths received at any of the input ports. The switch also includes a plurality of optical elements associated with the wavelength selective elements, Each of the optical elements direct one of the selected channel wavelengths selected by the associated wavelength selective element to the output port independently from every other channel wavelength. The selected channel wavelengths directed to the output port are combined on the output port.

6. 发明申请

US20100021162A1 WAVELENGTH DIVISION MULTIPLEXED OPTICAL COMMUNICATION SYSTEM HAVING A RECONFIGURABLE OPTICAL SWITCH AND A TUNABLE BACKUP LASER TRANSMITTER 审中-公开
标题翻译：具有可重新配置的光学开关和可调式备用激光发射器的波长段多路光通信系统
公开(公告)号：US20100021162A1
公开(公告)日：2010-01-28
申请号：US12574579
申请日：2009-10-06
申请人： Thomas Andrew Strasser , Paul Bonenfant , Jefferson L. Wagener
发明人： Thomas Andrew Strasser , Paul Bonenfant , Jefferson L. Wagener
IPC分类号： H04J14/00
CPC分类号： G02B6/356 , G02B6/29305 , G02B6/29367 , G02B6/29395 , G02B6/3512 , G02B6/3548 , G02B6/357 , G02B6/3578 , G02B6/4215 , H04J14/021 , H04J14/0212 , H04J14/0279 , H04J14/0295 , H04J14/0297 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0018 , H04Q2011/0024 , H04Q2011/003 , H04Q2011/0081
摘要： In a WDM optical communication system that includes a plurality of nodes interconnected by communication links, a node is provided that includes a reconfigurable optical switch having a plurality of input ports and at least one output port. The node also includes a plurality of transmitters that are each coupled to one of the input ports of the optical switch. Each of the transmitters generate an information-bearing optical signal at a different channel wavelength from one another. The reconfigurable optical switch is adaptable to receive at any of the input ports any of the channel wavelengths at which the plurality of transmitters operate and direct the channel wavelengths to the output port. At least one backup transmitter is coupled to one of the input ports of the optical switch. The backup transmitter includes a tunable laser tunable to any of the channel wavelengths at which the plurality of transmitters operate. The reconfigurable optical switch includes at least one wavelength selective element that selects at least one channel wavelength from among any of the channel wavelengths received at any of the input ports. The switch also includes a plurality of optical elements associated with the wavelength selective elements, Each of the optical elements direct one of the selected channel wavelengths selected by the associated wavelength selective element to the output port independently from every other channel wavelength. The selected channel wavelengths directed to the output port are combined on the output port.
摘要翻译：在包括通过通信链路互连的多个节点的WDM光通信系统中，提供了包括具有多个输入端口和至少一个输出端口的可重新配置光开关的节点。节点还包括多个发射机，每个发射机都耦合到光开关的一个输入端口。每个发射机产生彼此不同信道波长的信息承载光信号。可重构光开关适于在任何输入端口处接收多个发射器操作的任何信道波长，并将信道波长引导到输出端口。至少一个备用发射器耦合到光开关的一个输入端口。备用发射器包括可调谐激光器，可调谐到多个发射器操作的任何通道波长。可重构光开关包括至少一个波长选择元件，其从在任何输入端口处接收的任何通道波长中选择至少一个信道波长。开关还包括与波长选择元件相关联的多个光学元件。每个光学元件将相关联的波长选择元件所选择的所选择的通道波长中的一个独立于每隔一个通道波长引导到输出端口。指向输出端口的所选择的信道波长在输出端口上组合。

7. 发明授权

US07596313B1 Method and apparatus for processing protection switching mechanism in optical channel shared protection rings 有权
标题翻译：光通道共享保护环保护切换机制的处理方法及装置
公开(公告)号：US07596313B1
公开(公告)日：2009-09-29
申请号：US11866363
申请日：2007-10-02
申请人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
发明人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
IPC分类号： G02F1/00 , H04B10/00 , H04J14/00
CPC分类号： H04J3/085 , H04J14/0283 , H04J14/0295 , H04Q11/0062 , H04Q2011/0081
摘要： A method for merging protection switching messages in an optical network enables a control of the amount of message bandwidth used for sending protection switching messages. A method for performing protection switching in an optical network does so in an optimal manner by performing the protection switching actions in the various nodes of a protection path in parallel rather than in sequence. To do so, a channel failure message is transmitted from an end node A in the optical network upon detecting a failure in a link in the optical network that includes the end node A. If a failure can be detected at both end nodes, the channel failure messages are transmitted from both end nodes the moment they detect failure without any further waiting. Upon receiving the first channel failure message regardless its originating end node, switching actions in intermediate nodes are initiated. The channel failure messages are forwarded from the intermediate nodes to their corresponding next nodes before completing switching actions in the intermediate nodes. When receiving channel failure response messages, these messages are forwarded to a next node from the intermediate node only after switching actions are complete in the intermediate node.
摘要翻译：在光网络中合并保护倒换消息的方法能够控制用于发送保护倒换消息的消息带宽量。用于在光网络中进行保护切换的方法通过以并行方式而不是依次执行保护路径的各个节点中的保护切换动作，以最佳方式进行。为此，在检测到包括终端节点A的光网络中的链路中的故障时，从光网络中的端节点A发送信道失败消息。如果可以在两端节点检测到故障，则信道故障消息从两端节点发送，无需进一步等待即可发现故障。在接收到第一信道故障消息而不管其始发端节点时，中间节点中的切换动作被启动。在完成中间节点之间的切换动作之前，将信道故障消息从中间节点转发到其对应的下一个节点。当接收到信道故障响应消息时，只有在中间节点中的交换动作完成后，才将这些消息从中间节点转发到下一个节点。

8. 发明授权

US07277631B1 Method and apparatus for processing protection switching mechanism in optical channel shared protection rings 失效
标题翻译：光通道共享保护环保护切换机制的处理方法及装置
公开(公告)号：US07277631B1
公开(公告)日：2007-10-02
申请号：US10200066
申请日：2002-07-19
申请人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
发明人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
IPC分类号： H04B10/00
CPC分类号： H04J3/085 , H04J14/0283 , H04J14/0295 , H04Q11/0062 , H04Q2011/0081
摘要： A method for merging protection switching messages in an optical network enables a control of the amount of message bandwidth used for sending protection switching messages. A method for performing protection switching in an optical network does so in an optimal manner by performing the protection switching actions in the various nodes of a protection path in parallel rather than in sequence. To do so, a channel failure message is transmitted from an end node A in the optical network upon detecting a failure in a link in the optical network that includes the end node A. If a failure can be detected at both end nodes, the channel failure messages are transmitted from both end nodes the moment they detect failure without any further waiting. Upon receiving the first channel failure message regardless its originating end node, switching actions in intermediate nodes are initiated. The channel failure messages are forwarded from the intermediate nodes to their corresponding next nodes before completing switching actions in the intermediate nodes. When receiving channel failure response messages, these messages are forwarded to a next node from the intermediate node only after switching actions are complete in the intermediate node.
摘要翻译：在光网络中合并保护倒换消息的方法能够控制用于发送保护倒换消息的消息带宽量。用于在光网络中进行保护切换的方法通过以并行方式而不是依次执行保护路径的各个节点中的保护切换动作，以最佳方式进行。为此，在检测到包括终端节点A的光网络中的链路中的故障时，从光网络中的端节点A发送信道失败消息。如果可以在两端节点检测到故障，则信道故障消息从两端节点发送，无需进一步等待即可发现故障。在接收到第一信道故障消息而不管其始发端节点时，中间节点中的切换动作被启动。在完成中间节点之间的切换动作之前，将信道故障消息从中间节点转发到其对应的下一个节点。当接收到信道故障响应消息时，只有在中间节点中的交换动作完成后，才将这些消息从中间节点转发到下一个节点。

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