公开(公告)号：US07787713B2

公开(公告)日：2010-08-31

申请号：US11690444

申请日：2007-03-23

申请人： Kim B. Roberts ,  Michel Belanger

发明人： Kim B. Roberts ,  Michel Belanger

IPC分类号： G02F1/035

CPC分类号： H04B10/5053 ,  G02F1/0121 ,  G02F1/225 ,  H04B10/505 ,  H04B10/548

摘要： A method of modulating an optical carrier. A target carrier modulation is computed based on an input data signal. An effective length of an optical modulator is then controlled based on the target carrier modulation.

摘要翻译： 调制光学载体的方法。 基于输入数据信号计算目标载波调制。 然后基于目标载波调制来控制光调制器的有效长度。

公开(公告)号：US07599625B1

公开(公告)日：2009-10-06

申请号：US11362911

申请日：2006-02-28

申请人： James Harley ,  Kim B. Roberts

发明人： James Harley ,  Kim B. Roberts

IPC分类号： H04B10/00 ,  H04B10/12

CPC分类号： H04B10/0793

摘要： A method of initializing an optical communication link between nodes. Optical transmitters adapted to pre-compensate link impairments based upon an optical compensation parameters are utilized to establish an optical communications link. Pre-compensation parameter values are selected at a node for generating an optical signal. The value is selected until confirmation from the remote node is received that the optical signal transmission has been successful. The successful pre-compensation parameter value is then used to generate the optical signal for the communications link.

摘要翻译： 一种在节点之间初始化光通信链路的方法。 利用适于基于光学补偿参数来预补偿链路损伤的光发射机来建立光通信链路。 在用于产生光信号的节点处选择预补偿参数值。 选择该值，直到接收到来自远程节点的确认，表明光信号传输已成功。 成功的预补偿参数值然后用于生成通信链路的光信号。

公开(公告)号：US07352971B2

公开(公告)日：2008-04-01

申请号：US10209904

申请日：2002-08-02

申请人： Kim B. Roberts ,  Richard D. Habel ,  Maurice S. O'Sullivan

发明人： Kim B. Roberts ,  Richard D. Habel ,  Maurice S. O'Sullivan

IPC分类号： H04B10/12

CPC分类号： H04B10/2569

摘要： A method and system is provided for compensating polarization mode dispersion (PMD) in an optical communications system includes a controller designed to control a broadband PMD compensator to differentially delay light at each one of a plurality of selected wavelengths. At least one of the selected wavelengths lies between an adjacent pair of channel wavelengths of the optical communications system. A performance parameter value indicative of PMD is measured at each channel wavelength of the optical communications system. An estimated performance parameter value is then calculated at each selected wavelength, and an error function calculated as a function of wavelength based on the estimated performance parameter values. The broadband PMD compensator is then controlled to minimize the value of the error function.

摘要翻译： 提供了一种用于补偿光通信系统中的偏振模色散（PMD）的方法和系统，包括设计成控制宽带PMD补偿器差分延迟多个选定波长中的每一个处的光的控制器。 所选择的波长中的至少一个位于光通信系统的相邻的一对通道波长之间。 在光通信系统的每个信道波长处测量指示PMD的性能参数值。 然后在每个选择的波长处计算估计的性能参数值，并且基于估计的性能参数值计算作为波长的函数的误差函数。 然后控制宽带PMD补偿器以最小化误差函数的值。

公开(公告)号：US07321734B2

公开(公告)日：2008-01-22

申请号：US10902604

申请日：2004-07-29

申请人： Kim B. Roberts ,  Julian Fells

发明人： Kim B. Roberts ,  Julian Fells

IPC分类号： H04B10/04

CPC分类号： H04B10/25137 ,  H04B2210/254

摘要： A method and system for mitigating effects of dispersion in an optical link. A pair of digital sample streams are synthesized representing a target optical E-field having a spectrum selected such that the convolution of the spectrum with itself yields a signal having beat terms that contain phase information of the target optical E-field. A complex optical modulator is driven in accordance with the computed orthogonal sample values.

摘要翻译： 一种用于减轻光链路中色散影响的方法和系统。 合成一对数字样本流，表示具有选择的频谱的目标光E场，使得频谱与其自身的卷积产生具有包含目标光学E场的相位信息的拍子项的信号。 根据所计算的正交样本值驱动复数光调制器。

公开(公告)号：US07272308B1

公开(公告)日：2007-09-18

申请号：US11546334

申请日：2006-10-12

申请人： David W. Boertjes ,  Kim B. Roberts

发明人： David W. Boertjes ,  Kim B. Roberts

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04J14/0227 ,  H04B10/07955 ,  H04J14/0221

摘要： Provided is an optical apparatus and method wherein power transfer coefficients arising from SRS are measured at a designated co-location point and the power of dithers, which are impressed on the channels of a multiplexed optical signal propagating through the optical apparatus, is measured at each co-location point. Within the optical apparatus distances between co-location points are short and the power transfer coefficients are effectively constant. Consequently, the power of each channel of the multiplexed optical signal at the co-location points is obtained from the power of the dithers at a respective one of the co-location points and the power transfer coefficients measured at the designated co-location point. In some embodiments, information on the channel power at the co-location points is used to provide instructions for compensating for fluctuations in channel power and/or channel count at an input and/or channel count within the optical apparatus.

摘要翻译： 提供了一种光学装置和方法，其中在指定的共位点处测量由SRS产生的功率传递系数，并且在每个处测量施加在通过光学装置传播的复用光信号的通道上的抖动的功率 共点位置 在光学设备内，共位点之间的距离短，功率传递系数有效地恒定。 因此，在协同位置点处的多路复用光信号的每个信道的功率是从在协同位置点的相应一个处的抖动的功率和在指定的同一点处测量的功率传输系数获得的。 在一些实施例中，关于共同位置点处的信道功率的信息被用于提供用于补偿光学设备内的输入和/或信道计数处的信道功率和/或信道计数波动的指令。

公开(公告)号：US07257117B2

公开(公告)日：2007-08-14

申请号：US10124235

申请日：2002-04-18

申请人： Kim B. Roberts ,  Ronald J. Gagnon ,  Paul A. Smeulders ,  Manoj Verghese ,  Roland A. Smith ,  Nazib A. Moledina

发明人： Kim B. Roberts ,  Ronald J. Gagnon ,  Paul A. Smeulders ,  Manoj Verghese ,  Roland A. Smith ,  Nazib A. Moledina

IPC分类号： H04L12/56

CPC分类号： H04J3/1629 ,  H04J3/1611

摘要： A synchronizer/de-synchronizer maps continuous format signals of an arbitrary rate into frames of pre-selected single common rate, such as SONET frames, with no bits changed and very little jitter or wander added. In this way, the continuous format signal may be carried transparently as a tributary of a SONET network. Each frame comprises a definite number of fixed stuff bits, including transport overhead bits and reminder fixed stuff bits. A frame also comprises an adjustable number of adaptive stuff bits, resulting from the phase difference between the arbitrary rate and the common rate. A mapping function is performed in a tributary unit shelf of a SONET transport shelf, and the reverse mapping function is performed in a similar way at the far end of a SONET connection. The stuff bits are spread uniformly within the frame.

摘要翻译： 同步器/去同步器将任意速率的连续格式信号映射到预先选择的单个公共速率的帧，例如SONET帧，而不改变位，并且添加非常小的抖动或漂移。 以这种方式，连续格式信号可以作为SONET网络的支路透明地携带。 每个帧包括一定数量的固定填充位，包括传输开销位和提醒固定填充位。 帧还包括可调数量的自适应填充位，由任意速率和公共速率之间的相位差产生。 在SONET传输架的支路单元架中执行映射功能，并且以类似的方式在SONET连接的远端执行反向映射功能。 填充位在帧内均匀分布。

公开(公告)号：US07245582B1

公开(公告)日：2007-07-17

申请号：US09875154

申请日：2001-06-07

申请人： Kim B. Roberts ,  Dino B. Fatica

发明人： Kim B. Roberts ,  Dino B. Fatica

IPC分类号： H04J1/16 ,  H04J14/00

CPC分类号： H04J14/0227 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286 ,  H04J14/0291 ,  H04J14/0295 ,  H04L49/15 ,  H04L49/1515 ,  H04L49/552 ,  H04L49/557

摘要： A network node includes a system enabling high-speed protection switching of traffic between respectively associated working and protection channels of a communications network. The node comprises a multi-stage switch fabric, an interface, and a toggle. The multi-stage switch fabric has a first stage including a respective plurality of stage-1 switch elements. The interface is operatively coupled to a set of one or more stage-1 switch elements, and is adapted to aggregate the working and protection channels of the communications network on a selected one of the set of stage-1 switch elements. Finally, the toggle is adapted to control the selected stage-1 switch element to map traffic between a middle stage of the switch fabric and a selected one of the working and protection channels.

摘要翻译： 网络节点包括能够在通信网络的相关联的工作和保护信道之间高速保护交换业务的系统。 节点包括多级交换结构，接口和切换。 多级交换结构具有包括相应的多个一级开关元件的第一级。 该接口可操作地耦合到一组一个或多个第一级开关元件，并且适于将通信网络的工作和保护信道聚集在所述一组一级开关元件中的所选择的一个上。 最后，该切换适用于控制所选择的第一级交换机元件以在交换结构的中间阶段与所选择的工作和保护信道中的流量进行映射。

公开(公告)号：US06959019B2

公开(公告)日：2005-10-25

申请号：US09789559

申请日：2001-02-22

申请人： Kim B. Roberts ,  Ronald J. Gagnon

发明人： Kim B. Roberts ,  Ronald J. Gagnon

IPC分类号： H03M13/27 ,  H04L1/00 ,  H04J3/04

CPC分类号： H04L1/0071 ,  H03M13/27 ,  H03M13/2921 ,  H03M13/6561 ,  H04L1/0041 ,  H04L1/0045

摘要： Multiple sub-streams are aharmonicaly interleaved into a high speed data signal by interleaving successive blocks of data from each sub-stream into the high-speed data signal using a predetermined interleaving pattern that is different for two consecutive sequences of N (an integer >2) blocks of data within the high-speed data signal. The resulting irregular distribution of bits of each sub-stream within the high speed data signal reduces the probability that error bursts due to low frequency noise will be localized in one or more of the recovered sub-stream extracted from the high speed data signal. This improved distribution of bit errors across the sub-streams reduces bit error rates in the most highly errored sub-streams, and thereby enables an increase in signal reach.

摘要翻译： 通过使用针对N（整数2）的两个连续序列不同的预定交织模式，将来自每个子流的连续数据块交织到高速数据信号中，将多个子流以非共同的方式交错成高速数据信号 ）高速数据信号中的数据块。 高速数据信号中每个子流的比特的不规则分布减少了由于低频噪声导致的错误突发将被定位在从高速数据信号提取的一个或多个恢复的子流中的概率。 这种改进的子流中的位错误分布减少了最高错误子流中的误码率，从而使信号范围增加。

公开(公告)号：US06915348B1

公开(公告)日：2005-07-05

申请号：US09662337

申请日：2000-09-14

申请人： Kim B. Roberts

发明人： Kim B. Roberts

IPC分类号： G06F15/16 ,  H04J3/16

CPC分类号： H04J3/1611

摘要： An OP-N connection is mapped through a communications network between first and second end-nodes via at least one intermediate node. The integrity and validity of the OP-N connection can be determined independently of SONET/SDH lines, sections or paths mapped through the network, and potentially utilizing bandwidth of the OP-N connection. Validation of the OP-N connection can be accomplished by inserting performance monitor (PM) information into a data signal at the first end-node. The PM information is inserted into the synchronous payload envelope (SPE) of a SONET/SDH data signal. At each intermediate node between the first and second end-nodes, the PM information may be extracted, examined and/or augmented or simply pointer processed before the data signal is forwarded. At the second end-point, the PM information is extracted and examined. Multiple levels of OP-N connections are supported, with each level being provided with a respective set of PM information carried in the SPE.

摘要翻译： 通过至少一个中间节点通过第一和第二终端节点之间的通信网络映射OP-N连接。 可以独立于通过网络映射的SONET / SDH线路，部分或路径以及潜在地利用OP-N连接的带宽来确定OP-N连接的完整性和有效性。 可以通过将性能监视（PM）信息插入到第一个终端节点的数据信号来实现OP-N连接的验证。 PM信息被插入到SONET / SDH数据信号的同步有效负载包络（SPE）中。 在第一和第二终端之间的每个中间节点处，可以在数据信号被转发之前，提取，检查和/或增加PM信息或简单地指针处理。 在第二个终点，提取和检查PM信息。 支持多级OP-N连接，每级提供SPE中携带的相应的一组PM信息。

公开(公告)号：US06781537B1

公开(公告)日：2004-08-24

申请号：US10457528

申请日：2003-06-10

申请人： Terrance Taraschuk ,  Kim B. Roberts ,  Leo L. Strawczynski

发明人： Terrance Taraschuk ,  Kim B. Roberts ,  Leo L. Strawczynski

IPC分类号： H03M166

CPC分类号： H03M1/0836 ,  H03M1/74

摘要： A high speed D/A converter includes a phase aligner, and a vector summation block. The phase aligner operates to ensure precise phase alignment between corresponding bits of a parallel N-bit digital signal having a data rate of at least 2 GHz. The vector addition block performs a vector addition of the phase-aligned bits of the parallel N-bit digital signal. Each bit of the parallel N-bit digital signal can be weighted to ensure a correct additive contribution to the analog signal level appearing at the output of the D/A converter. Vector addition of the weighted bits can be accomplished using a microwave signal combiner network in the form of either a multistage parallel cascade of impedance matched junctions, or a linear cascade of junctions.

摘要翻译： 高速D / A转换器包括相位对准器和矢量求和块。 相位对准器操作以确保具有至少2GHz的数据速率的并行N位数字信号的相应位之间的精确相位对准。 矢量相加块执行并行N位数字信号的相位比特位的向量相加。 并行N位数字信号的每一位可被加权，以确保对D / A转换器输出端出现的模拟信号电平的正确附加贡献。 加权比特的向量加法可以使用以阻抗匹配连接的多级并联级联或连接的线性级联的形式的微波信号组合器网络来实现。