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    Optimization of a communications system based on identification of an optical member
    2.
    发明申请
    Optimization of a communications system based on identification of an optical member 审中-公开
    基于光学构件的识别的通信系统的优化

    公开(公告)号：US20050074244A1

    公开(公告)日：2005-04-07

    申请号：US10625696

    申请日：2003-07-24

    申请人： Kim Roberts ,  Maurice O'Sullivan ,  Paul Warren ,  Les Chan

    发明人： Kim Roberts ,  Maurice O'Sullivan ,  Paul Warren ,  Les Chan

    IPC分类号： H04B10/02 ,  H04B10/08 ,  H04B10/00

    CPC分类号： H04B10/0793

    摘要： An optical communications system is adapted for connection to an optical fiber link of an optical communications network. The system obtains a fiber identifier respecting the optical fiber link; a respective optimum setting of one or more parameters of the optical communications system; and adjusts a respective value of each parameter in accordance with the respective optimum setting. The fiber identifier can be obtained from a value of at least one fiber transmission property of the optical fiber link. The fiber transmission property value is used to search a look-up table of class definitions, each class definition including a respective class identifier and at least one corresponding characteristic transmission property value. A class identifier is selected as the fiber identifier from the class definition for which each characteristic transmission property value most closely matches a corresponding fiber transmission property value. Each class definition may also include an optimum setting for each parameter.

    摘要翻译： 光通信系统适于连接到光通信网络的光纤链路。 该系统获得关于光纤链路的光纤标识符; 光通信系统的一个或多个参数的相应最佳设置; 并根据各自的最佳设定调整各参数的相应值。 可以从光纤链路的至少一个光纤传输特性的值获得光纤标识符。 光纤传输属性值用于搜索类定义的查找表，每个类定义包括相应的类标识符和至少一个对应的特征传输属性值。 从类别定义中选择类别标识符作为每个特征传输特性值与其对应的光纤传输属性值最匹配的类定义。 每个类定义也可以包括每个参数的最佳设置。

    Optical dispersion compesnation in the electrical domain in an optical communications system
    3.
    发明申请
    Optical dispersion compesnation in the electrical domain in an optical communications system 有权
    在光通信系统中的电域中的光散射合成

    公开(公告)号：US20060078336A1

    公开(公告)日：2006-04-13

    申请号：US10531314

    申请日：2003-07-11

    申请人： John McNicol ,  Kieran Parsons ,  Leo Strawczynski ,  Kim Roberts ,  Maurice O'Sullivan

    发明人： John McNicol ,  Kieran Parsons ,  Leo Strawczynski ,  Kim Roberts ,  Maurice O'Sullivan

    IPC分类号： H04B10/12

    CPC分类号： H04B10/07951 ,  H04B10/07953 ,  H04B10/25137 ,  H04B10/505 ,  H04B10/50597 ,  H04B10/508 ,  H04B10/6161

    摘要： Optical dispersion imposed on a communications signal conveyed through an optical communications system is compensated by modulating the communications signal in the electrical domain. A compensation function is determined that substantially mitigates the chromatic dispersion. The communications signal is then modulated in the electrical domain using the compensation function. In preferred embodiments, compensation is implemented in the transmitter, using a look-up-table and digital-to-analog converter to generate an electrical predistorted signal. The electrical predistorted signal is then used to modulate an optical source to generate a corresponding predistorted optical signal for transmission through the optical communications system.

    摘要翻译： 施加在通过光通信系统传送的通信信号上的光色散通过调制电域中的通信信号来补偿。 确定基本上减轻色散的补偿功能。 然后使用补偿功能在电域中调制通信信号。 在优选实施例中，使用查找表和数模转换器来在发射机中实现补偿以产生电预失真信号。 然后，电预失真信号用于调制光源以产生用于通过光通信系统传输的相应的预失真光信号。

    Method and apparatus for laser line-width compensation
    5.
    发明授权
    Method and apparatus for laser line-width compensation 有权
    用于激光线宽补偿的方法和装置

    公开(公告)号：US07200339B1

    公开(公告)日：2007-04-03

    申请号：US10411332

    申请日：2003-04-11

    申请人： Kim Roberts ,  Maurice O'Sullivan

    发明人： Kim Roberts ,  Maurice O'Sullivan

    IPC分类号： H04B10/00 ,  H04B10/04

    CPC分类号： H04B10/58 ,  H04B10/505 ,  H04B10/50572 ,  H04B10/50577 ,  H04B10/50593 ,  H04B10/50597

    摘要： Laser line-width compensation is performed by detecting noise in an optical signal output by a laser of an optical communications system and controlling a complex modulator to cancel the detected noise. Line-width compensation can be performed for both amplitude and phase noise in the optical signal. Noise measurements are used to compute a complex scalar. The complex scalar is used by a compensation processor to modify an input signal that is to be transmitted by the optical communications system. The modified input signal controls the complex modulator, which modulates the output signal to cancel the noise.

    摘要翻译： 通过检测由光通信系统的激光器输出的光信号中的噪声来执行激光线宽补偿，并且控制复调制器以消除检测到的噪声。 可对光信号中的幅度和相位噪声进行线宽补偿。 噪声测量用于计算复杂标量。 复数标量由补偿处理器使用以修改由光通信系统传输的输入信号。 修改的输入信号控制复调制器，其调制输出信号以消除噪声。

    Location specific optical monitoring
    6.
    发明授权
    Location specific optical monitoring 有权
    位置特定的光学监控

    公开(公告)号：US07376358B2

    公开(公告)日：2008-05-20

    申请号：US10677269

    申请日：2003-10-03

    申请人： Kim Roberts ,  Maurice O'Sullivan

    发明人： Kim Roberts ,  Maurice O'Sullivan

    IPC分类号： H04B10/04

    CPC分类号： H04B10/07951 ,  H04B10/07953 ,  H04B10/25137 ,  H04B10/505 ,  H04B10/50597 ,  H04B10/508 ,  H04B10/6161

    摘要： An optical spike is generated at an arbitrarily selected location within an arbitrary optical link. The optical spike is generated by deriving a spike signal having a plurality of components, and launching the spike signal into the a transmitter end of the optical link. An initial phase relationship between the components is selected such that the involved signal components will be phase aligned at the selected location. In order to achieve this operation, the initial phase relationship between the components may be selected to offset dispersion induced phase changes between the transmitter end of the link and the selected location. One or more optical spikes can be generated at respective arbitrarily selected locations within the link, and may be used for performance monitoring, system control, or other purposes.

    摘要翻译： 在任意光链路内任意选择的位置产生光学尖峰。 通过导出具有多个分量的尖峰信号并将尖峰信号发射到光链路的发射机端来产生光尖峰。 选择组件之间的初始相位关系，使得所涉及的信号分量将在所选位置处相位对准。 为了实现该操作，可以选择组件之间的初始相位关系，以抵消链路的发射机端与所选位置之间的色散引起的相位变化。 可以在链路内的相应任意选择的位置处生成一个或多个光学尖峰，并且可以用于性能监视，系统控制或其它目的。

    Location specific optical monitoring
    7.
    发明申请
    Location specific optical monitoring 有权
    位置特定的光学监控

    公开(公告)号：US20050008364A1

    公开(公告)日：2005-01-13

    申请号：US10677269

    申请日：2003-10-03

    申请人： Kim Roberts ,  Maurice O'Sullivan

    发明人： Kim Roberts ,  Maurice O'Sullivan

    IPC分类号： H04B10/155 ,  H04B10/18 ,  H04B10/08

    CPC分类号： H04B10/07951 ,  H04B10/07953 ,  H04B10/25137 ,  H04B10/505 ,  H04B10/50597 ,  H04B10/508 ,  H04B10/6161

    摘要： An optical spike is generated at an arbitrarily selected location within an arbitrary optical link. The optical spike is generated by deriving a spike signal having a plurality of components, and launching the spike signal into the a transmitter end of the optical link. An initial phase relationship between the components is selected such that the involved signal components will be phase aligned at the selected location. In order to achieve this operation, the initial phase relationship between the components may be selected to offset dispersion induced phase changes between the transmitter end of the link and the selected location. One or more optical spikes can be generated at respective arbitrarily selected locations within the link, and may be used for performance monitoring, system control, or other purposes.

    摘要翻译： 在任意光链路内任意选择的位置产生光学尖峰。 通过导出具有多个分量的尖峰信号并将尖峰信号发射到光链路的发射机端来产生光尖峰。 选择组件之间的初始相位关系，使得所涉及的信号分量将在所选位置处相位对准。 为了实现该操作，可以选择组件之间的初始相位关系，以抵消链路的发射机端与所选位置之间的色散引起的相位变化。 可以在链路内的相应任意选择的位置处生成一个或多个光学尖峰，并且可以用于性能监视，系统控制或其它目的。

    Optical communications system having chromatic dispersion and polarization mode dispersion compensation
    10.
    发明授权
    Optical communications system having chromatic dispersion and polarization mode dispersion compensation 有权
    具有色散和偏振模色散补偿的光通信系统

    公开(公告)号：US09520950B2

    公开(公告)日：2016-12-13

    申请号：US12330691

    申请日：2008-12-09

    申请人： James Harley ,  Kim Roberts ,  Chuandong Li

    发明人： James Harley ,  Kim Roberts ,  Chuandong Li

    IPC分类号： H04B10/00 ,  H04B10/532 ,  H04B10/2513 ,  H04B10/69

    CPC分类号： H04B10/532 ,  H04B10/25137 ,  H04B10/6972 ,  H04B2210/252 ,  H04B2210/254

    摘要： Described are an optical communications system and a method that allow for compensation of chromatic dispersion and polarization mode dispersion imparted to a communications signal propagating through an optical link. The system is based on a cost-effective optical transport architecture that accommodates baud rates exceeding 15 Gbaud and eliminates the need for costly optical dispersion compensators. Compensation for polarization mode dispersion is performed at the receiver using nonlinear processing. Advantageously, direct detection modulation using inexpensive electro-optic system components can be used in place of more costly and complex coherent and differential modulation formats. Digital filtering can be performed at the transmitter and the input signal can be inverted based on the nonlinearity of the transmitter electro-optic components. Consequently, the bandwidth and linearity requirements for the transmitter electro-optic components are relaxed, and cost reductions are realized.

    摘要翻译： 描述了允许补偿通过光链路传播的通信信号的色散和偏振模色散的光通信系统和方法。 该系统基于具有成本效益的光学传输架构，其适应波特率超过15Gbaud，并且不需要昂贵的光学色散补偿器。 使用非线性处理在接收机处执行偏振模色散的补偿。 有利地，可以使用廉价的电光系统组件的直接检测调制来代替更昂贵和复杂的相干和差分调制格式。 可以在发射机处执行数字滤波，并且可以基于发射机电光部件的非线性来反转输入信号。 因此，放大了发射机电光元件的带宽和线性要求，并实现成本降低。