-
公开(公告)号：US09374188B2
公开(公告)日：2016-06-21
申请号：US12316389
申请日：2008-12-12
CPC分类号： H04J14/06
摘要： A WDM system having at least two channels, each of which employs two polarizations, is arranged so that the start times of symbols carried by one polarization of a channel are displaced in time from the start times of symbols carried by the other polarization of that channel, e.g., the start time for each symbol on one polarization is not substantially synchronized with the closest-in-time symbol start time on the other polarization of that channel. Preferably, the data signals are modulated using a return-to-zero (RZ) format and the start times of the symbols of the data signal carried by one polarization of a channel is offset from the start time of the symbols data signal carried by the other polarization of that channel by between 20% to 80%—preferably 50%—of the symbol period of the data signals, when the data signals have the same symbol period.
摘要翻译： 布置具有至少两个通道的WDM系统，每个通道采用两个极化，以使得通道的一个极化所承载的符号的开始时间从该通道的另一个极化所承载的符号的开始时间的时间偏移 例如，一个极化上的每个符号的开始时间基本上与该通道的另一个极化上的最接近时间符号开始时间同步。 优选地，使用归零（RZ）格式对数据信号进行调制，并且通过信道的一个极化承载的数据信号的符号的开始时间偏离由信道携带的符号数据信号的开始时间 当数据信号具有相同的符号周期时，该信道的其它极化在数据信号的符号周期的20％至80％之间优选地为50％。
-
2.发明申请公开(公告)号：US20100150559A1
公开(公告)日：2010-06-17
申请号：US12316389
申请日：2008-12-12
IPC分类号： H04J14/02
CPC分类号： H04J14/06
摘要： A WDM system having at least two channels, each of which employs two polarizations, is arranged so that the start times of symbols carried by one polarization of a channel are displaced in time from the start times of symbols carried by the other polarization of that channel, e.g., the start time for each symbol on one polarization is not substantially synchronized with the closest-in-time symbol start time on the other polarization of that channel. Preferably, the data signals are modulated using a return-to-zero (RZ) format and the start times of the symbols of the data signal carried by one polarization of a channel is offset from the start time of the symbols data signal carried by the other polarization of that channel by between 20% to 80%—preferably 50%—of the symbol period of the data signals, when the data signals have the same symbol period.
摘要翻译： 布置具有至少两个通道的WDM系统，每个通道采用两个极化，以使得通道的一个极化所承载的符号的开始时间从该通道的另一个极化所承载的符号的开始时间的时间偏移 例如，一个极化上的每个符号的开始时间基本上与该通道的另一个极化上的最接近时间符号开始时间同步。 优选地，使用归零（RZ）格式对数据信号进行调制，并且通过信道的一个极化承载的数据信号的符号的开始时间偏离由信道携带的符号数据信号的起始时间 当数据信号具有相同的符号周期时，该信道的其它极化在数据信号的符号周期的20％至80％之间优选地为50％。
-
公开(公告)号：US20140086594A1
公开(公告)日：2014-03-27
申请号：US13628412
申请日：2012-09-27
申请人： Chongjin Xie , Peter J. Winzer , Stefan Weisser , Andreas Leven
发明人： Chongjin Xie , Peter J. Winzer , Stefan Weisser , Andreas Leven
IPC分类号： H04B10/06
CPC分类号： H04B10/6161 , H04B10/6162 , H04B10/6165
摘要： In one embodiment, an optical receiver has a bulk dispersion compensator and a butterfly equalizer serially connected to one another to perform dispersion-compensation processing and electronic polarization de-multiplexing. The bulk dispersion compensator has a relatively large dispersion-compensation capacity, but is relatively slow and operates in a quasi-static configuration. The butterfly equalizer has a relatively small dispersion-compensation capacity, but can be dynamically reconfigured on a relatively fast time scale to track the changing conditions in the optical-transport link. The optical receiver has a feedback path that enables the configuration of the bulk dispersion compensator to be changed based on the configuration of the butterfly equalizer in a manner that advantageously enables the receiver to tolerate larger amounts of chromatic dispersion and/or polarization-mode dispersion than without the use of the feedback path.
摘要翻译： 在一个实施例中，光接收器具有彼此串联连接的体色散补偿器和蝶式均衡器，以执行色散补偿处理和电子偏振解复用。 体积色散补偿器具有相对较大的色散补偿能力，但是相对较慢并且在准静态配置中操作。 蝶形均衡器具有相对较小的色散补偿能力，但是可以在相对较快的时间尺度上动态地重新配置以跟踪光传输链路中的变化条件。 光接收机具有反馈路径，其能够基于蝴蝶均衡器的配置来改变批量色散补偿器的配置，其有利地使得接收器容忍更大量的色散和/或偏振模色散比 而不使用反馈路径。
-
公开(公告)号：US08849130B2
公开(公告)日：2014-09-30
申请号：US13537467
申请日：2012-06-29
申请人： Chongjin Xie , Peter J. Winzer
发明人： Chongjin Xie , Peter J. Winzer
CPC分类号： H04B10/611 , H04B10/616
摘要： One coherent optical receiver includes a 3×3 coupler for receiving a signal and a local oscillator into a first and a third input port respectively, and three detectors for detecting a respective output of the coupler to generate corresponding first, second and third detected signals. A detected signal is filtered by an Alternating Current (AC) coupler to generate a respective first, second or third filtered signal. An adder adds the first, the second and the third filtered signals to determine a directly detected signal term. A first subtractor subtracts the directly detected signal term from the first filtered signal to determine an in-phase signal. A second subtractor subtracts the directly detected signal term from the third filtered signal to determine a quadrature signal. A digital signal processor processes the in-phase signal and the quadrature signal to recover the optical signal.
摘要翻译： 一个相干光接收机包括一个3×3耦合器，用于分别将信号和本地振荡器接收到第一和第三输入端口，以及三个检测器，用于检测耦合器的相应输出以产生对应的第一，第二和第三检测信号。 检测信号由交流电耦合器滤波以产生相应的第一，第二或第三滤波信号。 加法器将第一，第二和第三滤波信号相加以确定直接检测的信号项。 第一减法器从第一滤波信号中减去直接检测的信号项，以确定同相信号。 第二个减法器从第三个滤波信号中减去直接检测的信号项，以确定正交信号。 数字信号处理器处理同相信号和正交信号以恢复光信号。
-
公开(公告)号：US20130071124A1
公开(公告)日：2013-03-21
申请号：US13537467
申请日：2012-06-29
申请人： Chongjin Xie , Peter J. Winzer
发明人： Chongjin Xie , Peter J. Winzer
IPC分类号： H04B10/06
CPC分类号： H04B10/611 , H04B10/616
摘要： One coherent optical receiver includes a 3×3 coupler for receiving a signal and a local oscillator into a first and a third input port respectively, and three detectors for detecting a respective output of the coupler to generate corresponding first, second and third detected signals. A detected signal is filtered by an Alternating Current (AC) coupler to generate a respective first, second or third filtered signal. An adder adds the first, the second and the third filtered signals to determine a directly detected signal term. A first subtractor subtracts the directly detected signal term from the first filtered signal to determine an in-phase signal. A second subtractor subtracts the directly detected signal term from the third filtered signal to determine a quadrature signal. A digital signal processor processes the in-phase signal and the quadrature signal to recover the optical signal.
摘要翻译： 一个相干光接收机包括分别用于将信号和本地振荡器分别接收到第一和第三输入端口的3×3耦合器，以及用于检测耦合器的相应输出以产生相应的第一，第二和第三检测信号的三个检测器。 检测信号由交流电耦合器滤波以产生相应的第一，第二或第三滤波信号。 加法器将第一，第二和第三滤波信号相加以确定直接检测的信号项。 第一减法器从第一滤波信号中减去直接检测的信号项，以确定同相信号。 第二个减法器从第三个滤波信号中减去直接检测的信号项，以确定正交信号。 数字信号处理器处理同相信号和正交信号以恢复光信号。
-
公开(公告)号：US20160365926A1
公开(公告)日：2016-12-15
申请号：US15178432
申请日：2016-06-09
申请人： Peter J. Winzer , David T. Neilson , Roland Ryf
发明人： Peter J. Winzer , David T. Neilson , Roland Ryf
CPC分类号： G02B6/43 , G02B6/00 , G02B6/12 , G02B6/2938 , G02B2006/12142 , G02B2006/1215 , H04B10/2587 , H04B10/40 , H04B10/61 , H04J14/02
摘要： An optical line card includes a plurality of coherent receivers and a plurality of optical modulators. The coherent receivers are each configured to receive a corresponding channel of a received optical superchannel. The optical modulators are each configured transmit a corresponding channel of a transmitted optical superchannel. Each of a plurality of optical splitters is configured to receive a corresponding one of a plurality of unmodulated optical signals from an optical source external to the line card. Each splitter directs a first portion of light received by that splitter to a corresponding one of the coherent receivers, and a second portion of light received by that splitter to a corresponding one of said optical modulators.
摘要翻译： 光线卡包括多个相干接收机和多个光调制器。 相干接收器被配置为接收所接收的光学超声道的相应通道。 每个光调制器被配置为传输所发送的光学超频道的相应信道。 多个分光器中的每一个被配置为从线卡外部的光源接收多个未调制的光信号中的相应的一个。 每个分离器将由该分离器接收的光的第一部分引导到相干接收器中的相应一个接收器，以及由该分离器接收的光的第二部分到所述光学调制器中的相应一个。
-
公开(公告)号：US09344779B2
公开(公告)日：2016-05-17
申请号：US13602722
申请日：2012-09-04
CPC分类号： H04Q11/0003 , G02B6/02042 , G02B6/26 , G02B6/29383 , H04J14/00 , H04J14/02 , H04J14/021 , H04J14/0212 , H04J14/04
摘要： A space division multiplexed (SDM) transmission system that includes at least two segments of transmission media in which a spatial assignment of the two segments is different is provided. For example, the SDM transmission may include a first segment of transmission media having a first spatial assignment and a second segment of transmission media having a second spatial assignment, wherein the first spatial assignment differs from the second spatial assignment. An example method obtains an optical signal on a first segment of transmission media having a first spatial assignment and forwards the optical signal on a second segment of transmission media with a different spatial assignment. The transmission media may be a multi-core fiber (MCF), a multi-mode fiber (MMF), a few-mode fiber (FMF), or a ribbon cable comprising nominally uncoupled single-mode fiber (SMF).
摘要翻译： 提供了包括两个段的空间分配不同的至少两个传输介质段的空分复用（SDM）传输系统。 例如，SDM传输可以包括具有第一空间分配的传输介质的第一段和具有第二空间分配的传输介质的第二段，其中第一空间分配与第二空间分配不同。 示例性方法在具有第一空间分配的传输介质的第一段上获得光信号，并且在具有不同空间分配的第二传输介质段上转发光信号。 传输介质可以是多芯光纤（MCF），多模光纤（MMF），多模光纤（FMF）或包括名义上脱耦单模光纤（SMF）的带状电缆）。
-
公开(公告)号：US09225425B2
公开(公告)日：2015-12-29
申请号：US12074692
申请日：2008-03-05
IPC分类号： H04B10/272 , H04L25/06 , H04Q11/00 , H04J3/22
CPC分类号： H04B10/272 , H04J3/22 , H04L25/062 , H04Q11/0067
摘要： In a dual speed passive optical network, an optical line termination (OLT) transmits a communication signal having a 10-Gb/s partition and a 2.5-Gb/s partition. The 10-Gb/s partition includes a 10 G data signal and a 2.5 G clock signal so that the PLL of a 2.5 G (legacy) optical network termination (ONT) can remain locked while a 10 G ONT is receiving data. The 2.5 G clock signal includes 1-bit spike signals of greater amplitude than the 10 G data signal.
-
9.发明授权Methods and devices for providing ingress routing in selective randomized load balancing 有权在选择性随机负载平衡中提供入口路由的方法和设备公开(公告)号：US09049095B2
公开(公告)日：2015-06-02
申请号：US11647273
申请日：2006-12-29
IPC分类号： G01R31/08 , H04L12/701 , H04L12/707 , H04L12/725 , H04L12/801 , H04L12/803 , H04L12/851 , H04L12/841
CPC分类号： H04L45/00 , H04L45/24 , H04L45/302 , H04L47/10 , H04L47/125 , H04L47/24 , H04L47/283
摘要： The performance of randomized load balanced or selective, randomized load balanced networks is enhanced by using ingress traffic engineering in addition to randomized traffic splitting. By first using the capacity of all links leading to the final destination of traffic, the remaining capacity is freed up for best effort traffic. Traffic splitting rules that enhance the performance of randomized load balanced networks in terms of packet missequencing and other quality of service criteria are also described.
摘要翻译： 随机负载平衡或选择性随机负载平衡网络的性能通过使用入口流量工程以及随机流量分割来增强。 通过首先使用导致流量最终目的地的所有链路的容量，剩余容量被释放以获得尽力而为的流量。 还描述了在分组测序和其他服务质量标准方面增强随机负载平衡网络的性能的业务分割规则。
-
公开(公告)号：US09008507B2
公开(公告)日：2015-04-14
申请号：US13077056
申请日：2011-03-31
申请人： Peter J. Winzer
发明人： Peter J. Winzer
CPC分类号： H04B10/2581 , H04B10/07953 , H04B10/5053 , H04B10/5055 , H04B10/60 , H04B10/85 , H04J14/00 , H04J14/02 , H04J14/04 , H04J14/06
摘要： An example apparatus includes a mode selective detector, a measurement module, a difference calculator and a threshold and alarm module. The mode selective detector detects a plurality of modes of a spatially multiplexed signal. The measurement module measures a parameter for the plurality of modes of the spatially multiplexed signal, wherein the parameter is a power or a signal to noise ratio (SNR). The difference calculator compares the measured parameter among a subset modes and/or among a known set of unperturbed parameters and determines a differential, the subset including at least one mode. The threshold and alarm module sets an alarm indicator when the differential is out of bounds.
摘要翻译： 示例性装置包括模式选择性检测器，测量模块，差分计算器和阈值和报警模块。 模式选择检测器检测空间复用信号的多种模式。 测量模块测量空间复用信号的多个模式的参数，其中该参数是功率或信噪比（SNR）。 差分计算器比较在子集模式之间和/或已知的一组未扰动参数之间的测量参数，并且确定差分，该子集包括至少一种模式。 当差分超出范围时，阈值和报警模块设置报警指示器。
-
-
-
-
-
-
-
-
-
搜索结果
85 条记录 (耗时 0.025 秒)