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11.发明授权Communication through pre-dispersion-compensated phase-conjugated optical variants 有权通过预色散补偿相位共轭光学变体进行通信公开(公告)号：US08934786B2
公开(公告)日：2015-01-13
申请号：US13601236
申请日：2012-08-31
IPC分类号： H04B10/04 , H04B10/516 , H04B10/2513
CPC分类号： H04B10/516 , H04B10/25137
摘要： An apparatus comprises an optical transmitter that comprises a processor and at least one optical modulator. The processor is configured to generate electronic representations of at least two pre-dispersion-compensated phase-conjugated optical variants carrying a same modulated payload data for transmission. The at least one optical modulator is configured to modulate the electronic representations, wherein an amount of dispersion induced on the pre-dispersion-compensated phase-conjugated optical variants depends on an accumulated dispersion (AD) of a transmission link through which the pre-dispersion-compensated phase-conjugated optical variants are to be transmitted. The amount of dispersion induced on the phase-conjugated optical variants may be approximately −AD/2, where AD is the accumulated dispersion of the transmission link. The pre-dispersion-compensated phase-conjugated optical variants are different from one another in one or more dimensions such as the polarization of light, the time of transmission, the spatial localization, the optical carrier wavelength, or the subcarrier frequency during transmission.
摘要翻译： 一种装置包括光发射机，其包括处理器和至少一个光调制器。 处理器被配置为生成携带相同调制有效载荷数据以进行传输的至少两个预色散补偿相位共轭光学变型的电子表示。 所述至少一个光调制器被配置为调制电子表示，其中在预色散补偿的相位共轭光学变体上感应的色散量取决于传输链路的累积色散（AD），通过该传播链路的预分散 补偿的相位共轭光学变体将被传输。 在相位共轭光学变体上引起的色散量可以近似为-AD / 2，其中AD是传输链路的累积色散。 预色散补偿相位共轭光学变体在一个或多个维度上彼此不同，例如光的偏振，透射时间，空间定位，光载波波长或透射期间的副载波频率。
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公开(公告)号：US20130070786A1
公开(公告)日：2013-03-21
申请号：US13411462
申请日：2012-03-02
CPC分类号： C02F1/78 , H04B10/00 , H04B10/516 , H04B10/61 , Y02W10/37
摘要： An optical transport system configured to transmit at least two phase-conjugated optical variants carrying the same modulated symbols, with the phase-conjugated optical variants in being different from one another in one or more of polarization of light, the time of transmission, spatial localization, optical carrier wavelength, and subcarrier frequency during transmission. The two phase-conjugated optical variants can be generated by a single polarization-diversity transmitter to be orthogonally polarized, and propagate through an optical transmission link with the same wavelength and spatial path. The optical variants are detected and processed at the receiver in a manner that enables coherent summation of the corresponding electrical signals prior to constellation de-mapping. The coherent summation tends to cancel out the deleterious effects of nonlinear distortions imparted on the individual phase-conjugated optical variants in an optical fiber transmission link because said nonlinear distortions tend to be opposite to each other.
摘要翻译： 一种光传送系统，被配置为传送携带相同调制符号的至少两个相位共轭光学变体，相位共轭光学变体在光的偏振中的一个或多个中的彼此不同，传输时间，空间定位 ，光载波波长，以及传输期间的副载波频率。 两个相位共轭的光学变型可以由单个偏振分集发射器产生，以被正交极化，并且通过具有相同波长和空间路径的光传输链路传播。 在接收机处以这样的方式检测和处理光学变体，使得能够在星座解映射之前对相应的电信号进行相干相加。 相干相加倾向于抵消由于所述非线性失真倾向于彼此相反而在光纤传输链路中赋予单个相位共轭光学变型的非线性失真的有害影响。
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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。
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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％。
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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.
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16.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。
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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。
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公开(公告)号：US20100329670A1
公开(公告)日：2010-12-30
申请号：US12492391
申请日：2009-06-26
申请人： Rene-Jean Essiambre , Roland Ryf , Peter J. Winzer
发明人： Rene-Jean Essiambre , Roland Ryf , Peter J. Winzer
CPC分类号： H04J14/04 , G02B6/2817 , G02B6/34 , H04B10/2581 , H04B10/60 , H04B10/611 , H04B10/613 , H04B10/614 , H04J14/002 , H04J14/021 , H04J14/06
摘要： A representative optical receiver of the invention receives an optical transverse-mode-multiplexed (TMM) signal through a multimode fiber that supports a plurality of transverse modes. The optical receiver has a plurality of optical detectors operatively coupled to a digital signal processor configured to process the TMM signal to determine its modal composition. Based on the determined modal composition, the optical receiver demodulates each of the independently modulated components of the TMM signal to recover the data encoded onto the TMM signal at the remote transmitter.
摘要翻译： 本发明的代表性光接收机通过支持多个横向模式的多模光纤接收光学横向模复用（TMM）信号。 光接收器具有多个光学检测器，其可操作地耦合到数字信号处理器，该数字信号处理器被配置为处理TMM信号以确定其模态组成。 基于确定的模态组合，光接收机解调TMM信号中的每个独立调制分量，以恢复在远程发射机处编码到TMM信号上的数据。
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19.发明申请公开(公告)号：US20100158521A1
公开(公告)日：2010-06-24
申请号：US12338492
申请日：2008-12-18
IPC分类号： H04J14/06
CPC分类号： H04B10/614 , H04B10/61 , H04B10/611 , H04J14/06
摘要： An optical mixer that, in one embodiment, has a single optical hybrid optically coupled to a single polarization beam splitter. The optical hybrid mixes a polarization-multiplexed optical communication signal and a local-oscillator signal to generate four mixed signals, each corresponding to a different relative phase shift between the communication and local-oscillator signals. The polarization beam splitter separates each of the mixed signals into two polarization components, subsequent processing of which enables an optical receiver employing the optical mixer to recover the data carried by the communication signal.
摘要翻译： 在一个实施例中，具有光学耦合到单个偏振分束器的单个光学混合器的光学混合器。 光混合器混合偏振复用光通信信号和本地振荡器信号以产生四个混合信号，每个混合信号对应于通信和本地振荡器信号之间的不同的相对相移。 偏振光束分离器将每个混合信号分离为两个偏振分量，其后续处理使得采用该光混合器的光接收器能够恢复通信信号承载的数据。
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20.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％。
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