公开(公告)号：US20120057863A1

公开(公告)日：2012-03-08

申请号：US12876489

申请日：2010-09-07

申请人： Peter J. Winzer ,  Xiang Liu ,  Chandrasekhar Sethumadhavan ,  Alan H. Gnauck

发明人： Peter J. Winzer ,  Xiang Liu ,  Chandrasekhar Sethumadhavan ,  Alan H. Gnauck

IPC分类号： H04B10/04 ,  H04B10/06

CPC分类号： H04L27/3863 ,  H04B10/60 ,  H04B10/611 ,  H04B10/613 ,  H04L27/0014

摘要： In one embodiment, a coherent optical receiver has a digital signal processor that processes one or more digital I/Q-signal pairs to recover data carried by a modulated optical signal in a manner that mitigates, based on calibration data retrieved from a memory or on appropriate performance measures and feedback mechanisms, the detrimental effects of frequency-dependent imbalances between the I and Q sub-channels of at least one of the I/Q channels of the receiver. In various embodiments, the calibration data can be generated and written into the memory at the fabrication facility or in situ while the receiver is being operated in a calibration mode. Alternatively or in addition, the calibration data can be generated and dynamically adjusted online during normal operation of the receiver.

摘要翻译： 在一个实施例中，相干光接收器具有数字信号处理器，其处理一个或多个数字I / Q信号对以恢复由调制的光信号携带的数据，其方法是基于从存储器或从存储器检索的校准数据减轻 适当的性能测量和反馈机制，接收机的至少一个I / Q信道的I和Q子信道之间频率不平衡的有害影响。 在各种实施例中，在接收器以校准模式操作的同时，校准数据可以在制造设备处或在原位产生并写入存储器。 或者或另外，校准数据可以在接收机的正常操作期间在线生成和动态调整。

公开(公告)号：US07613125B2

公开(公告)日：2009-11-03

申请号：US11306425

申请日：2005-12-28

申请人： Franz Fidler ,  Praveen Kasireddy ,  Peter J. Winzer

发明人： Franz Fidler ,  Praveen Kasireddy ,  Peter J. Winzer

IPC分类号： H04L1/00 ,  G08C15/00 ,  G01R31/28 ,  H04L7/00

CPC分类号： H04L25/14 ,  H04L43/50

摘要： Methods and apparatus for aligning the transmitters of two or more bidirectional ports of an integrated circuit (IC), particularly an application-specific IC (ASIC) or field-programmable gate array (FPGA). Misalignment of two or more transmitters is determined by the IC itself without the use of external test equipment. Receivers of the bidirectional ports whose transmitters are to be aligned are used by the IC to detect misalignment. Any misalignment of the receivers is also determined and either eliminated or taken into account when aligning the associated transmitters. Variants for ICs with and without internal loop-back capability and for ICs with and without differential outputs are described.

摘要翻译： 用于对准集成电路（IC）的两个或更多个双向端口的发射机，特别是专用集成电路（ASIC）或现场可编程门阵列（FPGA）的方法和装置。 两个或多个发射器的对准由IC本身决定，而不使用外部测试设备。 发射器要对准的双向端口的接收器由IC使用以检测未对准。 接收机的任何未对准也被确定，并且在对准相关的发射机时消除或考虑。 描述了具有和不具有内部回环能力的IC和具有和不具有差分输出的IC的变型。

公开(公告)号：US07450863B2

公开(公告)日：2008-11-11

申请号：US10464318

申请日：2003-06-18

申请人： Peter J. Winzer

发明人： Peter J. Winzer

IPC分类号： H04B10/06

CPC分类号： H04B10/69 ,  H04B10/677

摘要： A WDM receiver that includes a single, delay interferometer coupled to an N-channel wavelength-demultiplexing filter provides for the simultaneous conversion of a multiplex of N differential-phase-shift-keyed modulated optical signals of different wavelengths into N intensity-modulated optical signal channels. The Nintensity-modulated optical signals may be individually detected by a bank of N photodiode circuits to recover the modulated data stream or used for optical amplification, regeneration, processing, control, or modulation.

摘要翻译： 包括耦合到N沟道波长解复用滤波器的单个延迟干涉仪的WDM接收机提供将不同波长的N个差分相移键控调制光信号的多路复用同时转换成N个强度调制光信号 频道 N个光电二极管电路可分别检测出Nintensity调制的光信号，以恢复调制数据流或用于光放大，再生，处理，控制或调制。

公开(公告)号：US20080159138A1

公开(公告)日：2008-07-03

申请号：US11647273

申请日：2006-12-29

申请人： Frederick Bruce Shepherd ,  Marina K. Thottan ,  Peter J. Winzer

发明人： Frederick Bruce Shepherd ,  Marina K. Thottan ,  Peter J. Winzer

IPC分类号： G08C15/00

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：US06693929B1

公开(公告)日：2004-02-17

申请号：US10205643

申请日：2002-07-25

申请人： Rene'-Jean Essiambre ,  Peter J. Winzer

发明人： Rene'-Jean Essiambre ,  Peter J. Winzer

IPC分类号： H01S310

CPC分类号： H04B10/505 ,  G02F1/225 ,  G02F2201/126 ,  H04B10/5051 ,  H04B10/508

摘要： Optical chirped return-to-zero (CRZ) data signals are generated without the need for a separate phase modulator, by using a dual-drive Mach-Zehnder modulator for RZ pulse carving that is driven with two typically sinusoidal signals of either unequal amplitude or unequal relative phase, i.e. of non-vanishing phase difference.

摘要翻译： 通过使用用于RZ脉冲雕刻的双驱动马赫 - 曾德调制器来驱动具有不等幅度的两个典型的正弦信号，而不需要单独的相位调制器来产生光啁啾回归（CRZ）数据信号 相对相位不相等，即非消失相位差。