公开(公告)号：US20120093516A1

公开(公告)日：2012-04-19

申请号：US13026915

申请日：2011-02-14

申请人： Lijie QIAO ,  Ahmad ATIEH ,  John MILLS

发明人： Lijie QIAO ,  Ahmad ATIEH ,  John MILLS

IPC分类号： H04J14/02 ,  H04B10/12

CPC分类号： H04B10/07951

摘要： A system and method for in-service optical dispersion determination are provided. Optical dispersion is determined by splitting a first optical signal into two components, introducing a time delay between the two components such that corresponding pulses of the two components partially overlap, combining the two components to generate a combined optical signal comprising a first component and a second component, determining power of the combined optical signal while applying a plurality of dispersion compensation values, in order to determine a dispersion compensation value that results in a minimum detected power of the combined optical signal. Polarization Mode Dispersion is determined by adjusting the time delay that is introduced until the power of the combined optical signal is substantially equal for all of the plurality of dispersion compensation values.

摘要翻译： 提供了一种用于在线光学色散测定的系统和方法。 通过将第一光信号分成两个分量来确定光散射，在两个分量之间引入时间延迟，使得两个分量的相应脉冲部分重叠，组合两个分量以产生包括第一分量和第二分量的组合光信号 分量，在施加多个色散补偿值时确定组合光信号的功率，以便确定导致组合光信号的最小检测功率的色散补偿值。 极化模式通过调整引入的时间延迟来确定分散，直到组合的光信号的功率对于所有多个色散补偿值为基本相等。

公开(公告)号：US08412046B2

公开(公告)日：2013-04-02

申请号：US13026915

申请日：2011-02-14

申请人： Lijie Qiao ,  Ahmad Atieh ,  John Mills

发明人： Lijie Qiao ,  Ahmad Atieh ,  John Mills

IPC分类号： H04J14/02 ,  H04B10/08

CPC分类号： H04B10/07951

摘要： A system and method for in-service optical dispersion determination are provided. Optical dispersion is determined by splitting a first optical signal into two components, introducing a time delay between the two components such that corresponding pulses of the two components partially overlap, combining the two components to generate a combined optical signal comprising a first component and a second component, determining power of the combined optical signal while applying a plurality of dispersion compensation values, in order to determine a dispersion compensation value that results in a minimum detected power of the combined optical signal. Polarization Mode Dispersion is determined by adjusting the time delay that is introduced until the power of the combined optical signal is substantially equal for all of the plurality of dispersion compensation values.

公开(公告)号：US07620274B2

公开(公告)日：2009-11-17

申请号：US11705161

申请日：2007-02-12

申请人： Ahmad Atieh ,  John Mills

发明人： Ahmad Atieh ,  John Mills

IPC分类号： G02B6/26

CPC分类号： G02F1/3519 ,  H04B10/032 ,  H04J14/0221 ,  H04J14/0279 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0035 ,  H04Q2011/0081

摘要： An optical protection switch and a method for optical protection switching are provided. The optical protection switch includes a loop mirror-based optical switch with two circulators and a direction-dependent phase shifter in the loop mirror. The direction-dependent phase shifter introduces phase shifts in counter-propagating optical signals in the loop mirror such that either one of a first optical signal and a second optical signal are switched as an output optical signal. The direction-dependent phase shifter is controlled by a controller which initiates switching from the first optical signal to the second optical signal if a drop in power level is detected in the first optical signal and a corresponding drop in power level is not detected in the second optical signal and vice versa.

摘要翻译： 提供光保护开关和光保护切换方法。 光保护开关包括在环路镜中具有两个循环器和一个方向相移的移相器的基于环路镜的光开关。 方向相移移相器在环形反射镜中引入反向传播的光信号中的相移，使得第一光信号和第二光信号中的任一个被切换为输出光信号。 方向依赖移相器由控制器控制，该控制器在第一光信号中检测到功率电平下降并且在第二光信号中没有检测到相应的功率电平下降时，启动从第一光信号切换到第二光信号 光信号，反之亦然。

公开(公告)号：US07889995B2

公开(公告)日：2011-02-15

申请号：US11892686

申请日：2007-08-27

申请人： Lijie Qiao ,  Ahmad Atieh ,  John Mills

发明人： Lijie Qiao ,  Ahmad Atieh ,  John Mills

IPC分类号： H04J14/02 ,  H04B10/18

CPC分类号： H04B10/07951

摘要： A system and method for in-service optical dispersion determination are provided. Optical dispersion is determined by splitting a first optical signal into two components, introducing a time delay between the two components such that corresponding pulses of the two components partially overlap, combining the two components to generate a combined optical signal comprising a first component and a second component, determining power of the combined optical signal while applying a plurality of dispersion compensation values, in order to determine a dispersion compensation value that results in a minimum detected power of the combined optical signal. Polarization Mode Dispersion is determined by adjusting the time delay that is introduced until the power of the combined optical signal is substantially equal for all of the plurality of dispersion compensation values.

摘要翻译： 提供了一种用于在线光学色散测定的系统和方法。 通过将第一光信号分成两个分量来确定光散射，在两个分量之间引入时间延迟，使得两个分量的相应脉冲部分重叠，组合两个分量以产生包括第一分量和第二分量的组合光信号 分量，在施加多个色散补偿值时确定组合光信号的功率，以便确定导致组合光信号的最小检测功率的色散补偿值。 极化模式通过调整引入的时间延迟来确定分散，直到组合的光信号的功率对于所有多个色散补偿值为基本相等。

公开(公告)号：US07796895B2

公开(公告)日：2010-09-14

申请号：US11698219

申请日：2007-01-26

申请人： Ahmad Atieh ,  John Mills

发明人： Ahmad Atieh ,  John Mills

IPC分类号： H04B10/12 ,  H04B10/00

CPC分类号： H04B10/25133

摘要： A dynamic dispersion compensation system and method are provided. The method dynamically compensates for dispersion in an optical signal by recovering a first clock and a second clock from a first polarization component and a second polarization component of the optical signal respectively, determining a delay time between the first clock and the second clock, determining the dispersion based on the delay time and dynamically compensating for the determined dispersion. The system comprises a polarization beam splitter, a clock recoverer, a dispersion determiner and a tunable dispersion compensation module and is operable to dynamically compensate for the dispersion in an optical signal.

摘要翻译： 提供了一种动态色散补偿系统和方法。 所述方法通过分别从所述光信号的第一偏振分量和第二偏振分量恢复第一时钟和第二时钟来动态地补偿光信号中的色散，从而确定所述第一时钟与所述第二时钟之间的延迟时间， 基于延迟时间的分散和动态补偿所确定的色散。 该系统包括偏振分束器，时钟恢复器，色散确定器和可调色散补偿模块，并且可操作以动态补偿光信号中的色散。