公开(公告)号：US07123832B2

公开(公告)日：2006-10-17

申请号：US11328769

申请日：2006-01-10

申请人： John C. Carrick ,  Mark I. Oppenheimer ,  Rajiv Ramaswami ,  Ornan A. Gerstel

发明人： John C. Carrick ,  Mark I. Oppenheimer ,  Rajiv Ramaswami ,  Ornan A. Gerstel

IPC分类号： H04B10/00

CPC分类号： H04Q11/0062 ,  H04B10/0773 ,  H04B10/0793 ,  H04B2210/075 ,  H04Q2011/0083 ,  H04Q2011/0088

摘要： Methods and apparatus for managing an optical network using pilot tones are provided. One method includes generating a list of pilot tones contributed by a selected node to each of its target nodes. Network pilot tone sources are re-configured so that a pilot tone source of any optical path incorporating one of the target nodes has a value distinct from the listed pilot tones. The selected node can then be added to the network. Another method includes generating a list including all selected network nodes to be incorporated into a new optical path and nodes adjacent to the selected network nodes. Network pilot tone sources are re-configured until a pilot tone source associated with the new optical path has a pilot tone distinct from that of any listed node. The new optical path can then be added to the network.

摘要翻译： 提供了使用导频音来管理光网络的方法和装置。 一种方法包括生成由选定节点贡献到其每个目标节点的导频音调的列表。 重新配置网络导频音源，使得包含目标节点之一的任何光路的导频音源具有与列出的导频音不同的值。 然后可以将选定的节点添加到网络。 另一种方法包括生成包括要并入到新光路中的所有选定网络节点和与选定网络节点相邻的节点的列表。 重新配置网络导频音源，直到与新光路相关联的导频音源具有与任何列出的节点不同的导频音。 然后可以将新的光学路径添加到网络。

公开(公告)号：US09014562B2

公开(公告)日：2015-04-21

申请号：US12042793

申请日：2008-03-05

申请人： Ornan A. Gerstel ,  Rajiv Ramaswami

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。

公开(公告)号：US08971706B2

公开(公告)日：2015-03-03

申请号：US10261099

申请日：2002-09-30

申请人： Ornan A. Gerstel ,  Humair Raza ,  Rajiv Ramaswami ,  Babu O. Narayanan ,  Robert Ward ,  Robert Keys ,  David Park ,  Vasant Sahay ,  Osama Aboul-Magd ,  Frederic Simard

发明人： Ornan A. Gerstel ,  Humair Raza ,  Rajiv Ramaswami ,  Babu O. Narayanan ,  Robert Ward ,  Robert Keys ,  David Park ,  Vasant Sahay ,  Osama Aboul-Magd ,  Frederic Simard

IPC分类号： H04J14/00 ,  H04J14/02 ,  H04B10/032 ,  H04B10/07 ,  H04B10/077 ,  H04B10/079 ,  H04B10/27

CPC分类号： H04J14/0227 ,  H04B10/032 ,  H04B10/07 ,  H04B10/0775 ,  H04B10/0793 ,  H04B10/27 ,  H04B2210/071 ,  H04B2210/075 ,  H04J14/0241 ,  H04J14/0279 ,  H04J14/0284 ,  H04J14/0287 ,  H04J14/0294 ,  H04J14/0297

摘要： Automatic discovery and verification of optical communication links as well as isolation of link failures in an optical communication system.

摘要翻译： 光通信链路的自动发现和验证以及光通信系统中链路故障的隔离。

公开(公告)号：US07369772B2

公开(公告)日：2008-05-06

申请号：US10737765

申请日：2003-12-18

申请人： Ornan A. Gerstel ,  Rajiv Ramaswami

发明人： Ornan A. Gerstel ,  Rajiv Ramaswami

IPC分类号： H04J14/02 ,  H04J14/00

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 including a first optical line interface optically coupled to a first transponder and an optical demultiplexer through which the first optical line interface is not optically coupled to the first transponder. The system also includes a second optical line interface and at least one switch. The switch is operable to optically couple the second optical line interface to (a) the first optical line interface through at least the optical demultiplexer, and alternatively (b) the second transponder. A method for an optical add/drop multiplexing system also is provided.

摘要翻译： 一种波分复用光通信系统，包括光耦合到第一应答器的第一光线路接口和光解复用器，第一光线路接口不通过该光解复用器光耦合到第一应答器。 该系统还包括第二光线路接口和至少一个开关。 开关可操作以通过至少光解复用器将第二光线路接口光耦合到（a）第一光线路接口，以及（b）第二应答器。 还提供了一种用于光分插复用系统的方法。

公开(公告)号：US20080219666A1

公开(公告)日：2008-09-11

申请号：US12042793

申请日：2008-03-05

申请人： Ornan A. Gerstel ,  Rajiv Ramaswami

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。

公开(公告)号：US07606180B2

公开(公告)日：2009-10-20

申请号：US11131056

申请日：2005-05-16

申请人： Rajiv Ramaswami ,  Galen Sasaki

发明人： Rajiv Ramaswami ,  Galen Sasaki

IPC分类号： H04L12/42 ,  H04J14/00 ,  G06F15/16

CPC分类号： H04L12/42 ,  H04J14/02 ,  H04L12/44 ,  H04Q11/0062 ,  H04Q2011/0086 ,  H04Q2011/0092

摘要： A ring communication network according to an embodiment of the present invention includes a plurality of nodes in which a single one of the nodes is configured for full channel conversion and the remaining nodes, other than the single node, are configured for no channel conversion. Links with no more than W channels couple the nodes. The ring communication network may include N nodes and links connecting the nodes for carrying data in W channels such that N≧2 log2 W−1, where W is a power of 2. Each of the N nodes includes switches connected such that each channel of a first one of the links adjacent to any one of the N nodes can be switched to no more than W−1 channels of another one of the links adjacent to any one node.

摘要翻译： 根据本发明的实施例的环通信网络包括多个节点，其中单个节点被配置用于全频道转换，而除单个节点之外的其余节点被配置为不进行频道转换。 链接不超过W个通道耦合节点。 环通信网络可以包括N个节点和连接节点的链路，用于在W个信道中携带数据，使得N≥2log2W-1，其中W是2的幂.N个节点中的每一个包括连接的开关，使得每个信道 可以将与N个节点中的任一个相邻的第一个链路切换到与任何一个节点相邻的另一个链路的不超过W-1个信道。

公开(公告)号：US20070104483A1

公开(公告)日：2007-05-10

申请号：US11532903

申请日：2006-09-18

申请人： John Carrick ,  Mark Oppenheimer ,  Rajiv Ramaswami ,  Ornan Gerstel

发明人： John Carrick ,  Mark Oppenheimer ,  Rajiv Ramaswami ,  Ornan Gerstel

IPC分类号： H04B10/08

CPC分类号： H04Q11/0062 ,  H04B10/0773 ,  H04B10/0793 ,  H04B2210/075 ,  H04Q2011/0083 ,  H04Q2011/0088

摘要： Methods and apparatus for managing an optical network using pilot tones are provided. One method includes selecting an optical path having a plurality of nodes from a database defining an expected optical network. A detected list of pilot tones associated with each node of the selected optical path is generated. An expected list of pilot tones associated with each node of the selected optical path is generated. The detected and expected lists are compared to identify any mismatched nodes.

摘要翻译： 提供了使用导频音来管理光网络的方法和装置。 一种方法包括从定义预期光网络的数据库中选择具有多个节点的光路。 产生与所选光路的每个节点相关联的检测到的导频音的列表。 生成与所选光路的每个节点相关联的导频音调的预期列表。 将检测到的和预期的列表进行比较以识别任何不匹配的节点。

公开(公告)号：US06650803B1

公开(公告)日：2003-11-18

申请号：US09704439

申请日：2000-11-01

申请人： Rajiv Ramaswami ,  Robert R. Ward

发明人： Rajiv Ramaswami ,  Robert R. Ward

IPC分类号： G02B626

CPC分类号： H04Q11/0062 ,  G02B6/43 ,  H04J14/0293 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/005 ,  H04Q2011/0058 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083 ,  H04Q2011/0088

摘要： Methods, apparatus and systems for regenerating, monitoring and bridging optical signals through an optical cross-connect switch to provide increased reliability. A self testing method, apparatus and system for an optical cross-connect switch. An optical-to-electrical-to-optical converter (O/E/O) is provided in an optical cross-connect switch to provide optical-electrical-optical conversion. I/O port cards having an optical-to-electrical-to-optical converter are referred to as smart port cards while I/O port cards without an optical-to-electrical-to-optical converter are referred to as passive port cards. Test port/monitor cards are also provided for testing optical cross-connect switches. Methods, apparatus and systems for performing bridging, test access, and supporting redundant optical switch fabrics are also disclosed.

摘要翻译： 通过光交叉连接开关再生，监测和桥接光信号的方法，装置和系统，以提供更高的可靠性。 一种用于光交叉连接开关的自检方法，装置和系统。 在光交叉开关中提供光 - 电 - 光转换器（O / E / O）以提供光 - 电 - 光转换。 具有光 - 电 - 光转换器的I / O端口卡被称为智能端口卡，而没有光对电转换器的I / O端口卡被称为被动端口卡。 还提供测试端口/监视器卡，用于测试光交叉连接交换机。 还公开了用于执行桥接，测试访问和支持冗余光交换结构的方法，装置和系统。

公开(公告)号：US06597826B1

公开(公告)日：2003-07-22

申请号：US09704444

申请日：2000-11-01

申请人： Rajiv Ramaswami ,  Steven Clark ,  Robert R. Ward

发明人： Rajiv Ramaswami ,  Steven Clark ,  Robert R. Ward

IPC分类号： G02B642

CPC分类号： H04Q11/0062 ,  G02B6/43 ,  H04J14/0293 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： In one embodiment, a scalable cross-connect switching system and its corresponding method perform a bridging operation by splitting the incoming light signal into at least a first bridged light signal and a second bridged light signal. The first bridged light signal has a power level equal to or substantially greater than a power level of the second bridged light signal. The disproportionate power levels provide low-loss bridging. Light signals based on these bridged light signals are routed through multiple switch fabrics which provide redundancy in case of failure by switching within the switch fabric. To detect failures, a test access port is configured for monitoring multiple optical paths.

摘要翻译： 在一个实施例中，可扩展交叉连接交换系统及其对应方法通过将入射光信号分成至少第一桥接光信号和第二桥接光信号来执行桥接操作。 第一桥接光信号具有等于或基本上大于第二桥接光信号的功率电平的功率电平。 不相称的权力水平提供低损失桥梁。 基于这些桥接光信号的光信号通过多个交换结构进行路由，这些交换结构在交换结构内切换时在故障的情况下提供冗余。 为了检测到故障，测试接入端口被配置为监视多个光路。

公开(公告)号：US20100054263A1

公开(公告)日：2010-03-04

申请号：US12556125

申请日：2009-09-09

申请人： Rajiv Ramaswami ,  Galen H. Sasaki

发明人： Rajiv Ramaswami ,  Galen H. Sasaki

IPC分类号： H04L12/56

CPC分类号： H04L12/42 ,  H04J14/02 ,  H04L12/44 ,  H04Q11/0062 ,  H04Q2011/0086 ,  H04Q2011/0092

摘要： A ring communication network according to an embodiment of the present invention includes a plurality of nodes in which a single one of the nodes is configured for full channel conversion and the remaining nodes, other than the single node, are configured for no channel conversion. Links with no more than W channels couple the nodes. The ring communication network also may include N nodes and links connecting the nodes for carrying data in W channels such that N≧2 log2 W−1 where W is a power of 2. Each of the N nodes includes switches connected such that each channel of a first one of the links adjacent to any one of the N nodes can be switched to no more than W−1 channels of another one of the links adjacent any one node.

摘要翻译： 根据本发明的实施例的环通信网络包括多个节点，其中单个节点被配置用于全频道转换，而除单个节点之外的其余节点被配置为不进行频道转换。 链接不超过W个通道耦合节点。 环通信网络还可以包括N个节点和连接节点的链路，用于在W个信道中携带数据，使得N≥2log2W-1，其中W是2的幂.N个节点中的每一个包括连接的开关，使得每个信道 与N个节点中的任一个邻接的链路中的第一个可以被切换到与任何一个节点相邻的另一个链路的不超过W-1个信道。