公开(公告)号：US07075927B2

公开(公告)日：2006-07-11

申请号：US09848994

申请日：2001-05-04

申请人： Li Mo ,  Edward T. Sullivan ,  Carl A. DeWilde

发明人： Li Mo ,  Edward T. Sullivan ,  Carl A. DeWilde

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L61/25 ,  H04L29/12009 ,  H04L29/1233 ,  H04L41/12 ,  H04L41/22 ,  H04L43/50 ,  H04L45/00 ,  H04L45/22 ,  H04L45/502 ,  H04L47/10 ,  H04L2012/5627 ,  H04Q11/0478

摘要： A method and system for transporting traffic having disparate qualities of service classes across a packet-switched network includes receiving at an ingress node of a network a plurality of packets each comprising a quality of service (QoS) class defined externally to the network. Packets having a QoS class comprising delay bound guarantees and a low drop priority are combined into a first internal QoS class. Packets having a QoS class comprising a flexible drop priority and no delay bound guarantees are combined into a second internal QoS class. Packets having a QoS class including no delivery guarantees are combined into a third internal QoS class. The packets are transmitted in the network based on their internal QoS class.

摘要翻译： 一种在分组交换网络上传送具有不同服务等级质量的业务的方法和系统包括在网络的入口节点处接收多个分组，每个分组包括在网络外部定义的服务质量（QoS）类别。 具有包括延迟绑定保证和低丢弃优先级的QoS类的报文被组合成第一内部QoS类。 具有包括灵活丢弃优先级和没有延迟绑定保证的QoS类的分组被组合成第二内部QoS类。 具有不包含传送保证的QoS类的报文被组合成第三内部QoS类。 基于内部QoS等级，在网络中传输数据包。

公开(公告)号：US06693909B1

公开(公告)日：2004-02-17

申请号：US09588636

申请日：2000-06-06

申请人： Li Mo ,  Edward T. Sullivan ,  Carl A. DeWilde ,  Wayne R. Sankey

发明人： Li Mo ,  Edward T. Sullivan ,  Carl A. DeWilde ,  Wayne R. Sankey

IPC分类号： H04L1228

CPC分类号： H04Q11/0478 ,  H04L41/12 ,  H04L41/22 ,  H04L43/50 ,  H04L45/00 ,  H04L45/22 ,  H04L45/502 ,  H04L47/10 ,  H04L47/15 ,  H04L47/70 ,  H04L47/724 ,  H04L47/805 ,  H04L2012/5627

摘要： A method and system for transporting traffic in a packet-switched network segments high priority pass-through traffic from low priority pass-through traffic. The high priority pass-through traffic is transmitted on an egress link preferentially over the low priority pass-through traffic and ingress high priority local traffic. The ingress high priority local traffic is transmitted on the egress link preferentially over the low priority pass-through traffic.

摘要翻译： 用于在分组交换网络中传送业务的方法和系统从低优先级直通业务中分割高优先级的直通业务。 高优先级的传递流量优先通过低优先级传递流量在入口链路上传输，并进入高优先级本地流量。 入口高优先级本地流量优先通过低优先级传递流量在出口链路上传输。

公开(公告)号：US06532101B2

公开(公告)日：2003-03-11

申请号：US09811103

申请日：2001-03-16

申请人： Mohammed N. Islam ,  Carl A. Dewilde ,  Michael J. Freeman

发明人： Mohammed N. Islam ,  Carl A. Dewilde ,  Michael J. Freeman

IPC分类号： H01S300

CPC分类号： H04B10/2935 ,  H04B10/2916 ,  H04B2210/003

摘要： A multi-stage Raman amplifier includes a first Raman amplifier stage having a first sloped gain profile operable to amplify a plurality of signal wavelengths, and a second Raman amplifier stage having a second sloped gain profile operable to amplify at least most of the plurality of signal wavelengths after those wavelengths have been amplified by the first stage. The second sloped gain profile is approximately complementary slope to the slope of the first sloped gain profile. The combined effect of the first and second Raman stages contributes to an approximately flat overall gain profile over the plurality of signal wavelengths.

公开(公告)号：US4697262A

公开(公告)日：1987-09-29

申请号：US758990

申请日：1985-07-25

申请人： Henry P. Segal ,  Carl A. DeWilde

发明人： Henry P. Segal ,  Carl A. DeWilde

IPC分类号： H04J3/06 ,  H04J3/16 ,  H04J3/22 ,  H04J3/12

CPC分类号： H04J3/1641 ,  H04J3/0629

摘要： A digital carrier channel bus interface module is disclosed for a multiplexer having a cross-connect bus system. Random access memory is loaded or unloaded by a serial-to-parallel or parallel-to-serial converter respectively with data in parallel format off a digital carrier line. A high speed digital carrier module controls high speed data transmission over the bus system to another digital carrier channel. Receive and transmit addresses are sequentially routed over receive and transmit address bus lines of the bus system so that bus drivers and bus receivers of the channel bus interface module may appropriately actuate the routing of data in parallel over the bus system.

摘要翻译： 公开了一种用于具有交叉连接总线系统的多路复用器的数字载波信道总线接口模块。 随机访问存储器分别由串行到并行或并行到串行转换器分别以与数字载波线并行的格式的数据加载或卸载。 高速数字载波模块通过总线系统控制高速数据传输到另一数字载波信道。 接收和发送地址通过总线系统的接收和发送地址总线顺序路由，使得通道总线接口模块的总线驱动器和总线接收器可以通过总线系统适当地启动数据的并行布线。

公开(公告)号：US07197245B1

公开(公告)日：2007-03-27

申请号：US10100591

申请日：2002-03-15

申请人： Mohammed N. Islam ,  Carl A. DeWilde

发明人： Mohammed N. Islam ,  Carl A. DeWilde

IPC分类号： H04J14/02 ,  H04B10/00

CPC分类号： H04J14/0221 ,  H04B10/2916 ,  H04B10/2935

摘要： An optical communication system is operable to communicate a plurality of wavelength signals at a bit rate of at least 9.5 gigabits per second over a multiple span communication link spanning at least 400 kilometers without optical regenerators. The plurality of wavelength signals include a bandwidth of more than 32 nanometers separated into at least 160 optical channels. The system includes a plurality of optical transmitters implementing a forward error correction (FEC) coding technique. The FEC encoded wavelength signals comprise a bit error rate of 10−09 or better after FEC decoding. The system also includes at least five (5) optical add/drop multiplexers (OADMs), each coupled to one or more spans of the multiple span communication link. The system further includes a plurality of amplifiers each coupled to one or more spans of the communication link, at least a majority of the amplifiers comprise a distributed Raman amplification stage.

摘要翻译： 光通信系统可操作以通过跨越至少400公里的多跨度通信链路在不具有光学再生器的情况下以至少9.5千兆比特每秒的比特率来传送多个波长信号。 多个波长信号包括分离成至少160个光学通道的超过32纳米的带宽。 该系统包括实现前向纠错（FEC）编码技术的多个光发射机。 在FEC解码之后，FEC编码的波长信号包括10dB或更好的误码率。 该系统还包括至少五（5）个光分插复用器（OADM），每个耦合到多跨度通信链路的一个或多个跨度。 该系统还包括多个放大器，每个放大器耦合到通信链路的一个或多个跨度，至少大部分放大器包括分布式拉曼放大级。

公开(公告)号：US07068938B1

公开(公告)日：2006-06-27

申请号：US10100615

申请日：2002-03-15

申请人： Mohammed N. Islam ,  Andrzej Kaminski ,  Herve A. Fevrier ,  Carl A. DeWilde ,  Ozdal Boyraz

发明人： Mohammed N. Islam ,  Andrzej Kaminski ,  Herve A. Fevrier ,  Carl A. DeWilde ,  Ozdal Boyraz

IPC分类号： H04J14/02

CPC分类号： H04J14/0213

摘要： An optical communication system includes a plurality of optical add/drop multiplexers (OADMs). The plurality of OADMs includes at least five low distortion OADMs. Each OADM is coupled between spans of a multiple span communication link and operable to receive a multiple wavelength signal. The multiple wavelength signal includes a plurality of bands of wavelength signals each separated from other bands of wavelength signals by one or more guard-channels. In one embodiment, each of the at least five low distortion OADMs adds/drops a common first band of wavelengths to/from the multiple wavelength signal. In some embodiments, a spectral distortion associated with a pass-through wavelength signal spectrally adjacent to one of the one or more guard-channels is no more than three decibels after exiting the last of the plurality of low distortion OADMs. In those embodiments, the guard-channel is adjacent to the first band of wavelengths.

摘要翻译： 光通信系统包括多个光分插复用器（OADM）。 多个OADM包括至少五个低失真OADM。 每个OADM耦合在多跨度通信链路的跨度之间并且可操作以接收多波长信号。 多波长信号包括波长信号的多个波段，每个波长信号波段由波长信号的其它波段与一个或多个保护通道分离。 在一个实施例中，至少五个低失真OADM中的每一个向多波长信号/从多波长信号添加/丢弃公共第一波长带。 在一些实施例中，与在一个或多个保护信道之一频谱相邻的通过波长信号相关联的频谱失真在离开多个低失真OADM中的最后一个之后不超过三个分贝。 在那些实施例中，保护信道与第一波长带相邻。

公开(公告)号：US07974002B2

公开(公告)日：2011-07-05

申请号：US11691012

申请日：2007-03-26

申请人： Mohammed N. Islam ,  Carl A. DeWilde

发明人： Mohammed N. Islam ,  Carl A. DeWilde

IPC分类号： H04B10/12 ,  H04B10/17

CPC分类号： H04J14/0221 ,  H04B10/2916 ,  H04B10/2935

摘要： An optical communication system is operable to communicate a plurality of wavelength signals at a bit rate of at least 9.5 gigabits per second over a multiple span communication link spanning at least 400 kilometers without optical regenerators. The plurality of wavelength signals include a bandwidth of more than 32 nanometers separated into at least 160 optical channels. The system includes a plurality of optical transmitters implementing a forward error correction (FEC) coding technique. The FEC encoded wavelength signals comprise a bit error rate of 10−09 or better after FEC decoding. The system also includes at least five (5) optical add/drop multiplexers (OADMs), each coupled to one or more spans of the multiple span communication link. The system further includes a plurality of amplifiers each coupled to one or more spans of the communication link, at least a majority of the amplifiers comprise a distributed Raman amplification stage.

摘要翻译： 光通信系统可操作以通过跨越至少400公里的多跨度通信链路在不具有光学再生器的情况下以至少9.5千兆比特每秒的比特率来传送多个波长信号。 多个波长信号包括分离成至少160个光学通道的超过32纳米的带宽。 该系统包括实现前向纠错（FEC）编码技术的多个光发射机。 FEC编码的波长信号在FEC解码之后包括10-09或更好的误比特率。 该系统还包括至少五（5）个光分插复用器（OADM），每个耦合到多跨度通信链路的一个或多个跨度。 该系统还包括多个放大器，每个放大器耦合到通信链路的一个或多个跨度，至少大部分放大器包括分布式拉曼放大级。

公开(公告)号：US07254337B1

公开(公告)日：2007-08-07

申请号：US11383686

申请日：2006-05-16

申请人： Mohammed N. Islam ,  Andrzej Kaminski ,  Herve A. Fevrier ,  Carl A. DeWilde ,  Ozdal Boyraz

发明人： Mohammed N. Islam ,  Andrzej Kaminski ,  Herve A. Fevrier ,  Carl A. DeWilde ,  Ozdal Boyraz

IPC分类号： H04J14/02

CPC分类号： H04J14/0291 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0213 ,  H04J14/0279

摘要： An optical communication system includes a plurality of optical add/drop multiplexers (OADMs). The plurality of OADMs includes at least five low distortion OADMs. Each OADM is coupled between spans of a multiple span communication link and operable to receive a multiple wavelength signal. The multiple wavelength signal includes a plurality of bands of wavelength signals each separated from other bands of wavelength signals by one or more guard-channels. In one embodiment, each of the at least five low distortion OADMs adds/drops a common first band of wavelengths to/from the multiple wavelength signal. In some embodiments, a spectral distortion associated with a pass-through wavelength signal spectrally adjacent to one of the one or more guard-channels is no more than three decibels after exiting the last of the plurality of low distortion OADMs. In those embodiments, the guard-channel is adjacent to the first band of wavelengths.

摘要翻译： 光通信系统包括多个光分插复用器（OADM）。 多个OADM包括至少五个低失真OADM。 每个OADM耦合在多跨度通信链路的跨度之间并且可操作以接收多波长信号。 多波长信号包括波长信号的多个波段，每个波长信号波段由波长信号的其它波段与一个或多个保护通道分离。 在一个实施例中，至少五个低失真OADM中的每一个向多波长信号/从多波长信号添加/丢弃公共第一波长带。 在一些实施例中，与在一个或多个保护信道之一频谱相邻的通过波长信号相关联的频谱失真在离开多个低失真OADM中的最后一个之后不超过三个分贝。 在那些实施例中，保护信道与第一波长带相邻。

公开(公告)号：US06744553B1

公开(公告)日：2004-06-01

申请号：US09885678

申请日：2001-06-20

申请人： Mohammed N. Islam ,  Ozdal Boyraz ,  Carl A. Dewilde

发明人： Mohammed N. Islam ,  Ozdal Boyraz ,  Carl A. Dewilde

IPC分类号： G02F135

CPC分类号： G02F1/39 ,  G02F1/3536

摘要： In one aspect of the invention, an apparatus operable to convert wavelengths of a plurality of optical signals includes a coupler operable to receive a pump signal and a plurality of input signals each input signal comprising at least one wavelength different than the wavelengths of others of the plurality of input optical signals. The apparatus further includes an optical medium operable to receive the pump signal and the plurality of input signals from the couplet, wherein the pump signal and each of the plurality of input signals are synchronized to overlap at least partially during at least a part of the time spent traversing the optical medium to facilitate generation of a plurality of converted wavelength signals each comprising a wavelength that is different than the wavelengths of at least some of the plurality of input signals. Various embodiments can result in low cross-talk and/or low polarization sensitivity.

摘要翻译： 在本发明的一个方面，可操作以转换多个光信号的波长的装置包括可操作以接收泵浦信号和多个输入信号的耦合器，每个输入信号包括至少一个波长不同于 多个输入光信号。 所述装置还包括光学介质，其可操作以从所述对联接收所述泵浦信号和所述多个输入信号，其中所述泵浦信号和所述多个输入信号中的每一个被同步至少部分地在所述时间的至少一部分期间重叠 经过光学介质以便于产生多个转换的波长信号，每个波长信号包括不同于多个输入信号中的至少一些的波长的波长。 各种实施例可导致低串扰和/或低偏振灵敏度。

公开(公告)号：US06646788B2

公开(公告)日：2003-11-11

申请号：US10289198

申请日：2002-11-05

申请人： Mohammed N. Islam ,  Carl A. Dewilde

发明人： Mohammed N. Islam ,  Carl A. Dewilde

IPC分类号： H01S330

CPC分类号： H04B10/2935 ,  H04B10/2916 ,  H04B2210/003

摘要： A multi-stage Raman amplifier includes a first Raman amplifier stage having a first sloped gain profile operable to amplify a plurality of signal wavelengths, and a second Raman amplifier stage having a second sloped gain profile operable to amplify at least most of the plurality of signal wavelengths after those wavelengths have been amplified by the first stage. The second sloped gain profile is approximately complementary slope to the slope of the first sloped gain profile. The combined effect of the first and second Raman stages contributes to an approximately flat overall gain profile over the plurality of signal wavelengths.

摘要翻译： 多级拉曼放大器包括具有可操作以放大多个信号波长的第一倾斜增益分布的第一拉曼放大器级和具有第二倾斜增益分布的第二拉曼放大器级，该第二拉曼放大器级可用于放大多个信号中的至少大部分 这些波长的波长在第一阶段被放大。 第二倾斜增益曲线是与第一倾斜增益分布的斜率近似互补的斜率。 第一和第二拉曼级的组合效应有助于在多个信号波长上的大致平坦的总增益分布。