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1.发明授权Reconfigurable optical add/drop multiplexer network element for C-band and L-band optical signals 有权用于C波段和L波段光信号的可重配置的光分插复用器网元公开(公告)号：US09130692B2
公开(公告)日：2015-09-08
申请号：US13453416
申请日：2012-04-23
CPC分类号： H04J14/0204 , H04J14/0212 , H04J14/0217
摘要： A method for routing C-band and L-band optical signals, and a system, apparatus, and computer program that operate in accordance with the method. The method comprises selecting one or more C-band optical signals using one or more C-band components, resulting in one or more selected C-band optical signals. One or more L-band optical signals are selected using one or more L-band components, resulting in one or more selected L-band optical signals. The selected C-band and L-band optical signals are combined.
摘要翻译： 一种用于路由C波段和L波段光信号的方法，以及根据该方法操作的系统，装置和计算机程序。 该方法包括使用一个或多个C波段分量来选择一个或多个C波段光信号，产生一个或多个选择的C波段光信号。 使用一个或多个L波段分量选择一个或多个L波段光信号，得到一个或多个选择的L波段光信号。 所选择的C波段和L波段光信号被组合。
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2.发明申请RECONFIGURABLE OPTICAL ADD/DROP MULTIPLEXER NETWORK ELEMENT FOR C-BAND AND L-BAND OPTICAL SIGNALS 有权用于C带和L带光信号的可重新配置的光学增益/多路复用器网络元件公开(公告)号：US20130279908A1
公开(公告)日：2013-10-24
申请号：US13453416
申请日：2012-04-23
CPC分类号： H04J14/0204 , H04J14/0212 , H04J14/0217
摘要： A method for routing C-band and L-band optical signals, and a system, apparatus, and computer program that operate in accordance with the method. The method comprises selecting one or more C-band optical signals using one or more C-band components, resulting in one or more selected C-band optical signals. One or more L-band optical signals are selected using one or more L-band components, resulting in one or more selected L-band optical signals. The selected C-band and L-band optical signals are combined.
摘要翻译： 一种用于路由C波段和L波段光信号的方法，以及根据该方法操作的系统，装置和计算机程序。 该方法包括使用一个或多个C波段分量选择一个或多个C波段光信号，产生一个或多个选择的C波段光信号。 使用一个或多个L波段分量选择一个或多个L波段光信号，得到一个或多个选择的L波段光信号。 所选择的C波段和L波段光信号被组合。
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公开(公告)号：US08467678B2
公开(公告)日：2013-06-18
申请号：US12544571
申请日：2009-08-20
IPC分类号： H04B10/08
CPC分类号： H04B10/07 , H04L41/12 , H04L41/145 , H04L45/02 , H04L45/70
摘要： Increasing data rates in next-generation optical networks requires a change in the type of optical modulation used to encode optical signals carried by the optical networks. Different types of optical modulation incur different optical impairments, which may degrade the fidelity of the optical signals by reducing the optical signal-to-noise ratio (OSNR). A method or corresponding apparatus in an example embodiment of the present invention provides a planning tool for deploying an optical network in a manner based on the optical modulation that reduces the cost and complexity of the deployed network. In one embodiment, the disclosed planning tool may adjust a model of the optical network to be deployed by changing the topology and/or the number and/or type of optical network elements in response to optical impairments for a given optical modulation.
摘要翻译： 在下一代光网络中增加数据速率需要改变用于编码由光网络承载的光信号的光调制类型。 不同类型的光学调制产生不同的光学损伤，这可能通过降低光信噪比（OSNR）来降低光信号的保真度。 在本发明的示例性实施例中的方法或相应装置提供了一种用于以基于光调制的方式部署光网络的规划工具，所述光调制降低了部署网络的成本和复杂性。 在一个实施例中，所公开的规划工具可以响应于给定光学调制的光学损伤，通过改变光网络元件的拓扑和/或数量和/或类型来调整要部署的光网络的模型。
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公开(公告)号：US08374510B2
公开(公告)日：2013-02-12
申请号：US12221697
申请日：2008-08-06
CPC分类号： H04B10/671
摘要： High optical communication rates are making their way into networks initially designed for 10 Gigabits per seconds (Gbps). These higher rates of 40 Gbps and higher have shorter signaling periods and are more susceptible to differential group delay (DGD). A method and corresponding apparatus in an example embodiment of the present invention compensates for polarization state sensitivity of a receiver by determining a performance metric relating to an error rate due to transmission and reception of a modulated optical signal in a medium introducing DGD. Based on the performance metric, a control vector is determined to control a polarization state of the modulated optical signal. The control vector is applied to a polarization effecting device to compensate for the DGD and the polarization state sensitivity of the receiver. Communication rates of 40 Gbps and higher can be used in transmission mediums that introduce DGD through use of embodiments presented.
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5.发明授权Reconfigurable optical add/drop multiplexer and procedure for outputting optical signals from such multiplexer 有权可重配置的光分插复用器和从这种多路复用器输出光信号的程序公开(公告)号：US08965220B2
公开(公告)日：2015-02-24
申请号：US12044322
申请日：2008-03-07
CPC分类号： H04J14/0213 , H04J14/0205 , H04J14/0206 , H04J14/0209 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/0221
摘要： A reconfigurable optical add drop multiplexer (ROADM) includes local interfaces at which optical signals of different wavelengths are locally input into the ROADM, and a network interface configured to connect the ROADM to a network from which multiplexed optical signals of different wavelengths are transmitted to the network. In a first configuration, the ROADM is configured to transmit from the network interface to the network multiplexed signals of different wavelengths having a first minimum frequency difference. In a second configuration, the ROADM is configured to transmit from the network interface to the network multiplexed signals of different wavelengths having a second minimum frequency difference. The second minimum frequency difference is greater than the first minimum frequency difference. This arrangement reduces the power of four wave mixing cross products produced when optical signals of three wavelengths are multiplexed and transmitted from the ROADM to NZDSF or DSF fiber types.
摘要翻译： 可重构光分插复用器（ROADM）包括本地接口，不同波长的光信号被本地输入到ROADM中，以及网络接口，被配置为将ROADM连接到网络，从该网络将不同波长的复用光信号传输到 网络。 在第一配置中，ROADM被配置为从网络接口向具有第一最小频率差的不同波长的网络复用信号进行发送。 在第二配置中，ROADM被配置为从网络接口向具有第二最小频率差的不同波长的网络复用信号进行发送。 第二最小频率差大于第一最小频率差。 这种布置降低了由三路波长的光信号从ROADM复用到NZDSF或DSF光纤类型时产生的四个波混合交叉产品的功率。
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公开(公告)号：US20100142956A1
公开(公告)日：2010-06-10
申请号：US12330331
申请日：2008-12-08
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H04B10/2507 , H04B10/572 , H04J14/0221
摘要： Higher rate channels (e.g., 40 Giga bits or greater) have large bandwidths and are susceptible to inter-channel crosstalk. Optical tunable filters may be used to overcome crosstalk. Tunable filters do not maintain their central wavelength over a long duration or a wide temperature range. An example embodiment of the present invention relates to shaping a channel signal within a dense wavelength division multiplexing signal and may employ a tunable filter and input and output optical power detectors to measure a modulated source channel signal at an input of the tunable filter and a filtered modulated source channel signal at an output of the tunable filter. A controller is configured to adjust a center wavelength of the tunable filter as a function of a difference between measurements of optical power by the optical power detectors. Adjusting the center wavelength shapes the channel signal and overcomes undesired effects for higher rate channels.
摘要翻译： 更高的速率信道（例如，40G比特或更大）具有大的带宽并且易于发生信道间串扰。 可以使用光可调谐滤波器来克服串扰。 可调滤波器在长时间或宽温度范围内不能保持其中心波长。 本发明的示例性实施例涉及在密集波分复用信号中对信道信号进行整形，并且可以采用可调谐滤波器和输入和输出光功率检测器来测量可调滤波器的输入端处的调制源信道信号，并且滤波 在可调滤波器的输出处调制源信道信号。 控制器被配置为根据光功率检测器的光功率的测量值之间的差异来调节可调谐滤波器的中心波长。 调整中心波长会形成通道信号，并克服对较高速率通道的不良影响。
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7.发明申请Method and apparatus for polarization stabilization in optical receivers with complex modulation formats 有权用于具有复杂调制格式的光接收机中的极化稳定的方法和装置公开(公告)号：US20090285585A1
公开(公告)日：2009-11-19
申请号：US12221697
申请日：2008-08-06
IPC分类号： H04B10/06
CPC分类号： H04B10/671
摘要： High optical communication rates are making their way into networks initially designed for 10 Gigabits per seconds (Gbps). These higher rates of 40 Gbps and higher have shorter signaling periods and are more susceptible to differential group delay (DGD). A method and corresponding apparatus in an example embodiment of the present invention compensates for polarization state sensitivity of a receiver by determining a performance metric relating to an error rate due to transmission and reception of a modulated optical signal in a medium introducing DGD. Based on the performance metric, a control vector is determined to control a polarization state of the modulated optical signal. The control vector is applied to a polarization effecting device to compensate for the DGD and the polarization state sensitivity of the receiver. Communication rates of 40 Gbps and higher can be used in transmission mediums that introduce DGD through use of embodiments presented.
摘要翻译： 高光通信速率正在进入最初设计为每秒10吉比特（Gbps）的网络。 这些更高的40 Gbps和更高的速率具有较短的信令周期，并且更容易受到差分组延迟（DGD）的影响。 本发明的示例性实施例中的方法和相应的装置通过确定与介质DGD的介质中的调制光信号的发送和接收导致的错误率相关的性能度量来补偿接收机的偏振状态灵敏度。 基于性能度量，确定控制矢量以控制调制光信号的偏振状态。 将控制矢量应用于极化效应装置，以补偿接收机的DGD和极化状态灵敏度。 40Gbps以上的通信速率可以用于通过使用实施例引入DGD的传输介质。
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8.发明申请Method and apparatus for compensating for polarization mode dispersion (PMD) 有权用于补偿偏振模色散（PMD）的方法和装置公开(公告)号：US20090252497A1
公开(公告)日：2009-10-08
申请号：US12082091
申请日：2008-04-08
IPC分类号： H04J14/02
CPC分类号： H04B10/2569 , H04B10/07953 , H04B10/6162
摘要： Current optical networks are engineered to handle amplifier noise and chromatic dispersion. Polarization mode dispersion occurs in optical networks due splitting of the light energy of a pulse propagating in a fiber into two modes. Compensating for polarization mode dispersion is a difficult and expensive task and hence only few commercial systems have been deployed to deal with this issue. A polarization mode dispersion compensation module according to an example embodiment of the present invention compensates for polarization mode dispersion by determining a performance metric related to an error rate of an optical signal in at least one polarization mode in a filtered state. Based on the performance metric, a control vector is determined to control the optical signal in the at least one polarization mode in the filtered state. The control vector is then applied to a polarization effecting device to compensate for polarization mode dispersion.
摘要翻译： 目前的光网络被设计为处理放大器噪声和色散。 由于将在光纤中传播的脉冲的光能分裂成两种模式，在光网络中发生极化模式色散。 补偿偏振模色散是一项艰巨和昂贵的任务，因此只有少数商业系统被部署来处理这个问题。 根据本发明的示例性实施例的偏振模色散补偿模块通过在滤波状态下确定与至少一个偏振模式中的光信号的误码率相关的性能度量来补偿偏振模色散。 基于性能度量，确定控制矢量以控制处于过滤状态的至少一个偏振模式中的光信号。 然后将控制矢量应用于偏振效应装置以补偿偏振模色散。
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9.发明申请RECONFIGURABLE OPTICAL ADD/DROP MULTIPLEXER AND PROCEDURE FOR OUTPUTTING OPTICAL SIGNALS FROM SUCH MULTIPLEXER 有权可重新配置的光学增益/多路复用器和从这种多路复用器输出光信号的步骤公开(公告)号：US20090226172A1
公开(公告)日：2009-09-10
申请号：US12044322
申请日：2008-03-07
IPC分类号： H04J14/02
CPC分类号： H04J14/0213 , H04J14/0205 , H04J14/0206 , H04J14/0209 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/0221
摘要： A reconfigurable optical add drop multiplexer (ROADM) includes local interfaces at which optical signals of different wavelengths are locally input into the ROADM, and a network interface configured to connect the ROADM to a network from which multiplexed optical signals of different wavelengths are transmitted to the network. In a first configuration, the ROADM is configured to transmit from the network interface to the network multiplexed signals of different wavelengths having a first minimum frequency difference. In a second configuration, the ROADM is configured to transmit from the network interface to the network multiplexed signals of different wavelengths having a second minimum frequency difference. The second minimum frequency difference is greater than the first minimum frequency difference. This arrangement reduces the power of four wave mixing cross products produced when optical signals of three wavelengths are multiplexed and transmitted from the ROADM to NZDSF or DSF fiber types.
摘要翻译： 可重构光分插复用器（ROADM）包括本地接口，不同波长的光信号被本地输入到ROADM中，以及网络接口，被配置为将ROADM连接到网络，从该网络将不同波长的复用光信号传输到 网络。 在第一配置中，ROADM被配置为从网络接口向具有第一最小频率差的不同波长的网络复用信号进行发送。 在第二配置中，ROADM被配置为从网络接口向具有第二最小频率差的不同波长的网络复用信号进行发送。 第二最小频率差大于第一最小频率差。 这种布置降低了由三路波长的光信号从ROADM复用到NZDSF或DSF光纤类型时产生的四个波混合交叉产品的功率。
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公开(公告)号：US09020365B2
公开(公告)日：2015-04-28
申请号：US12082091
申请日：2008-04-08
IPC分类号： H04B10/12 , H04B10/00 , H04B10/06 , H04B10/2569 , H04B10/61 , H04B10/079
CPC分类号： H04B10/2569 , H04B10/07953 , H04B10/6162
摘要： Current optical networks are engineered to handle amplifier noise and chromatic dispersion. Polarization mode dispersion occurs in optical networks due splitting of the light energy of a pulse propagating in a fiber into two modes. Compensating for polarization mode dispersion is a difficult and expensive task and hence only few commercial systems have been deployed to deal with this issue. A polarization mode dispersion compensation module according to an example embodiment of the present invention compensates for polarization mode dispersion by determining a performance metric related to an error rate of an optical signal in at least one polarization mode in a filtered state. Based on the performance metric, a control vector is determined to control the optical signal in the at least one polarization mode in the filtered state. The control vector is then applied to a polarization effecting device to compensate for polarization mode dispersion.
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