公开(公告)号：US09438369B2

公开(公告)日：2016-09-06

申请号：US14536792

申请日：2014-11-10

申请人： Gerard L. Swinkels ,  David W. Boertjes ,  David Miedema ,  Kim B. Roberts

发明人： Gerard L. Swinkels ,  David W. Boertjes ,  David Miedema ,  Kim B. Roberts

IPC分类号： H04J14/02 ,  H04B10/079 ,  H04B10/572 ,  H04B10/58

CPC分类号： H04J14/0227 ,  H04B10/0795 ,  H04B10/572 ,  H04B10/58 ,  H04J14/0241 ,  H04J14/0257 ,  H04J14/0271 ,  H04L1/0023

摘要： Systems and methods of optimizing capacity of an optical network include identifying a first wavelength with an associated target capacity; determining that the first wavelength has insufficient capability to operate at the associated target capacity; and adjusting one or more wavelengths to increase capability of the first wavelength such that the first wavelength can operate at the associated target capacity.

摘要翻译： 优化光网络容量的系统和方法包括：识别具有相关目标容量的第一波长; 确定第一波长具有不足以在相关联的目标容量下操作的能力; 以及调整一个或多个波长以增加第一波长的能力，使得第一波长可以以相关联的目标容量运行。

公开(公告)号：US09143238B2

公开(公告)日：2015-09-22

申请号：US13969694

申请日：2013-08-19

申请人： Kim B. Roberts ,  Maurice O'Sullivan ,  Mahmoud Taherzadehboroujeni ,  Shahab Oveis Gharan ,  Andrew D. Shiner ,  Michael Andrew Reimer

发明人： Kim B. Roberts ,  Maurice O'Sullivan ,  Mahmoud Taherzadehboroujeni ,  Shahab Oveis Gharan ,  Andrew D. Shiner ,  Michael Andrew Reimer

IPC分类号： H04B10/04 ,  H04B10/00 ,  H04B10/532 ,  H04B10/516

CPC分类号： H04B10/532 ,  H04B10/516

摘要： A method of transmitting a data signal using an optical transmitter of an optical communications system. The optical transmitter is configured to modulate an optical carrier in successive signalling intervals to generate an optical signal. A modulation scheme is provided which comprises a multi-dimensional symbol constellation. The modulation scheme is designed such that an average degree of polarization of a modulated optical signal output from the optical transmitter has a first value when averaged across a first signaling interval, and has a second value when averaged across more than one and fewer than 100 signaling intervals. The second value is less than 10 percent of the first value. During run-time, an encoder of the optical transmitter encoding a data signal to be transmitted as symbols of the constellation, and a modulator of the optical transmitter modulating available dimensions of the optical carrier in accordance with the symbols.

摘要翻译： 一种使用光通信系统的光发射机发送数据信号的方法。 光发射机被配置为在连续的信令间隔中调制光载波以产生光信号。 提供了一种包括多维符号星座的调制方案。 调制方案被设计成使得当从第一信令间隔平均时，从光发送器输出的调制光信号的平均偏振度具有第一值，并且当平均多于一个且少于100个信令时具有第二值 间隔 第二个值小于第一个值的10％。 在运行时间期间，光发送器的编码器编码要作为星座符号发送的数据信号，以及根据符号调制光载波的可用尺寸的光发射机的调制器。

公开(公告)号：US09130678B2

公开(公告)日：2015-09-08

申请号：US14102856

申请日：2013-12-11

申请人： Charles Laperle ,  Kim B. Roberts

发明人： David Krause ,  Charles Laperle ,  Kim B. Roberts

IPC分类号： H04B10/61 ,  H04J14/02 ,  H04B10/516 ,  H04B10/50 ,  H04L27/26

CPC分类号： H04B10/516 ,  H04B10/5055 ,  H04L27/2627

摘要： A high-speed signal generator. A digital signal processing (DSP) block generates a set of N (where N is an integer and N≧2) parallel digital sub-band signals, each digital sub-band signal having frequency components within a spectral range between 0 Hz and ±Fs/2, where Fs is a sample rate of the digital sub-band signals. A respective Digital-to-Analog Converter (DAC) processes each digital sub-band signal to generate a corresponding analog sub-band signal, each DAC having a sample rate of Fs/2. A combiner combines the analog sub-band signals to generate an output analog signal having frequency components within a spectral range between 0 Hz and ±NFs/2.

摘要翻译： 高速信号发生器。 数字信号处理（DSP）块产生一组N（其中N是整数且N≥2）并行数字子带信号，每个数字子带信号具有在0Hz和±Fs之间的频谱范围内的频率分量 / 2，其中Fs是数字子带信号的采样率。 相应的数模转换器（DAC）处理每个数字子带信号以产生对应的模拟子带信号，每个DAC具有采样率Fs / 2。 组合器组合模拟子带信号以产生具有在0Hz和±NFs / 2之间的频谱范围内的频率分量的输出模拟信号。

公开(公告)号：US09088387B2

公开(公告)日：2015-07-21

申请号：US13949627

申请日：2013-07-24

申请人： Shahab Oveis Gharan ,  Kim B. Roberts

发明人： Shahab Oveis Gharan ,  Kim B. Roberts

IPC分类号： H04L27/06 ,  H04L1/00 ,  H03M13/25 ,  H03M13/15

CPC分类号： H04L1/00 ,  H03M13/1515 ,  H03M13/251 ,  H03M13/6325

摘要： A method of recovering a value of a symbol received through an optical communications system. A multi-bit estimate of the symbol is subdivided into a first part and a second part, each part including at least one respective bit of the estimate. A most likely value of the first part is detected. The most likely value of the first part is processed using a Forward Error Correction (FEC) decoder to generate a corrected first part value, which is used to detect a most likely value of the second part. The most likely value of the second part is then processed by the FEC decoder to generate a corrected second part, which is combined with the corrected first part to recover the value of the symbol.

摘要翻译： 一种恢复通过光通信系统接收的符号的值的方法。 符号的多位估计被细分为第一部分和第二部分，每个部分包括估计的至少一个相应位。 检测到第一部分的最有可能的值。 使用前向纠错（FEC）解码器处理第一部分的最可能的值，以产生校正的第一部分值，其用于检测第二部分的最可能的值。 然后由FEC解码器处理第二部分的最可能的值，以产生校正的第二部分，其与校正的第一部分组合以恢复符号的值。

公开(公告)号：US08693876B2

公开(公告)日：2014-04-08

申请号：US12692065

申请日：2010-01-22

申请人： David Krause ,  Charles Laperle ,  Kim B. Roberts

发明人： David Krause ,  Charles Laperle ,  Kim B. Roberts

IPC分类号： H04B10/00 ,  H04B10/04 ,  H04K1/10

CPC分类号： H04B10/516 ,  H04B10/5055 ,  H04L27/2627

摘要： A high-speed signal generator. A digital signal processing (DSP) block generates a set of N (where N is an integer and N≧2) parallel digital sub-band signals, each digital sub-band signal having frequency components within a spectral range between 0 Hz and ±Fs/2, where Fs is a sample rate of the digital sub-band signals. A respective Digital-to-Analog Converter (DAC) processes each digital sub-band signal to generate a corresponding analog sub-band signal, each DAC having a sample rate of Fs/2. A combiner combines the analog sub-band signals to generate an output analog signal having frequency components within a spectral range between 0 Hz and ±NFs/2.

摘要翻译： 高速信号发生器。 数字信号处理（DSP）块产生一组N（其中N是整数且N≥2）并行数字子带信号，每个数字子带信号具有在0Hz和±Fs之间的频谱范围内的频率分量 / 2，其中Fs是数字子带信号的采样率。 相应的数模转换器（DAC）处理每个数字子带信号以产生对应的模拟子带信号，每个DAC具有采样率Fs / 2。 组合器组合模拟子带信号以产生具有在0Hz和±NFs / 2之间的频谱范围内的频率分量的输出模拟信号。

公开(公告)号：US08170418B2

公开(公告)日：2012-05-01

申请号：US12412743

申请日：2009-03-27

申请人： Richard Habel ,  Kim B. Roberts

发明人： Richard Habel ,  Kim B. Roberts

IPC分类号： H04J14/02

CPC分类号： H04J14/0282 ,  H04B10/506 ,  H04J14/0297

摘要： A protected light source for generating seed light for at least two wavelength division multiplexed passive optical networks (WDM-PONs). The protected light source includes an optical coupler having N≧2 input ports and M≧2 output ports, each output port being optically connected to supply seed light to a respective set of one or more WDM-PONs. A respective multi-wavelength light source (MWLS) is optically coupled to supply seed light to each input port of the optical coupler. A controller unit controls operation of each multi-wavelength light source (MWLS).

摘要翻译： 用于为至少两个波分复用无源光网络（WDM-PON）产生种子光的受保护光源。 受保护的光源包括具有N≥2个输入端口和M≥2个输出端口的光耦合器，每个输出端口被光学连接以将种子光提供给一组或多个WDM-PON。 相应的多波长光源（MWLS）被光耦合以将光源提供给光耦合器的每个输入端口。 控制器单元控制每个多波长光源（MWLS）的操作。

公开(公告)号：US07957641B2

公开(公告)日：2011-06-07

申请号：US10067910

申请日：2002-02-08

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 ,  H04B10/06

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：US07936999B1

公开(公告)日：2011-05-03

申请号：US11533438

申请日：2006-09-20

申请人： Mark Hawryluck ,  Kim B. Roberts ,  Kuang Tsan Wu

发明人： Mark Hawryluck ,  Kim B. Roberts ,  Kuang Tsan Wu

IPC分类号： H04B10/148

CPC分类号： H04L7/0075 ,  H04B10/60 ,  H04B10/61 ,  H04B10/6162 ,  H04B10/6165 ,  H04L7/0004

摘要： In a coherent optical receiver, a method of at least partially compensating Polarization Dependent Loss (PDL) of an optical signal received through an optical communications system. A respective multi-bit sample stream of each one of a pair of orthogonal received polarizations of the optical signal is tapped, and used to derive a respective metric value indicative of a quality of each multi-bit sample stream. A gain of an analog front end of the coherent optical receiver is adjusted based on the derived metric values.

摘要翻译： 在相干光接收机中，至少部分补偿通过光通信系统接收的光信号的偏振相关损耗（PDL）的方法。 光信号的一对正交接收极化中的每一个的相应多位采样流被抽头，并用于导出指示每个多位采样流的质量的相应度量值。 基于导出的度量值来调整相干光接收机的模拟前端的增益。

公开(公告)号：US07356256B1

公开(公告)日：2008-04-08

申请号：US10629834

申请日：2003-07-30

申请人： Leo Strawczynski ,  Kim B. Roberts ,  John McNicol

发明人： Leo Strawczynski ,  Kim B. Roberts ,  John McNicol

IPC分类号： H04B10/08

CPC分类号： H04B10/077 ,  H04B10/07955 ,  H04B2210/258

摘要： A digital performance monitoring method and system for an optical communications system utilizes a channel monitor and a digital signal processor (DSP). The channel monitor is designed to monitor a respective channel signal of the optical communications system, and includes a sample memory for storing sample data including a set of sequential N-bit (where N>1) samples generated by an Analog-to-Digital (A/D) converter at a predetermined sample rate. The digital signal processor (DSP) is designed to calculate at least one performance parameter of the optical communications system based on the stored sample data. The sample rate of the A/D converter is at least equal to a baud rate of the channel, and preferably satisfies the Nyquist criterion. Multiple A/D converters may be used parallel to sample respective orthogonal components of the channel signal. In this case, the stored sample data may be representative of the complex E-field of the channel signal.

摘要翻译： 用于光通信系统的数字性能监测方法和系统利用信道监视器和数字信号处理器（DSP）。 信道监视器被设计为监视光通信系统的相应信道信号，并且包括用于存储样本数据的采样存储器，该采样数据包括由模数（数字）信号产生的一组顺序N位（其中N≥1） A / D）转换器。 数字信号处理器（DSP）被设计为基于存储的采样数据来计算光通信系统的至少一个性能参数。 A / D转换器的采样率至少等于通道的波特率，并且优选地满足奈奎斯特准则。 可以并行地使用多个A / D转换器来采样信道信号的各个正交分量。 在这种情况下，存储的采样数据可以表示信道信号的复电场。

公开(公告)号：US06937614B1

公开(公告)日：2005-08-30

申请号：US09438516

申请日：1999-11-12

申请人： Kim B. Roberts ,  Richard R. Habel

发明人： Kim B. Roberts ,  Richard R. Habel

IPC分类号： H04J3/14 ,  H04Q11/00 ,  H04J3/16

CPC分类号： H04J3/14 ,  H04Q11/0062 ,  H04Q2011/0045 ,  H04Q2011/0079 ,  H04Q2011/0088

摘要： A transparent port which maps continuous format signals of an arbitrary rate into frames of a pre-selected single common rate, is provided with a programmable link termination/instigation, for example a FPGA. The port identifies the rate of the continuous signal, recognizes its protocol and the FPGA is configured accordingly. FPGA performs framing, counts errors, does code conversion, corrects parity and performs any other performance monitoring specific to the protocol. In this way, the continuous format signal may be carried transparently as a tributary of e.g. a SONET network, and the performance parameters for the previous section, such as the previous section fail, may be reported to the far end.

摘要翻译： 将任意速率的连续格式信号映射成预选单个公共速率的帧的透明端口被提供有可编程链路终止/启动，例如FPGA。 端口识别连续信号的速率，识别其协议，并相应地配置FPGA。 FPGA执行成帧，计数错误，执行代码转换，校正奇偶校验并执行特定于协议的任何其他性能监视。 以这种方式，连续格式信号可以透明地承载为例如支路的支路。 SONET网络，以及上一节的性能参数（如上一节失败）可能会报告到远端。