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    ORTHOGONAL BAND LAUNCH FOR REPEATERLESS SYSTEMS
    1.
    发明申请
    ORTHOGONAL BAND LAUNCH FOR REPEATERLESS SYSTEMS 审中-公开
    正交带发射无重复系统

    公开(公告)号：US20120257899A1

    公开(公告)日：2012-10-11

    申请号：US13081231

    申请日：2011-04-06

    申请人： Lee Richardson ,  Ekaterina A. Golovchenko ,  Bamdad Bakhshi

    发明人： Lee Richardson ,  Ekaterina A. Golovchenko ,  Bamdad Bakhshi

    IPC分类号： H04B10/12 ,  H04J14/02

    CPC分类号： H04B10/5053 ,  H04B10/506 ,  H04B10/532 ,  H04J14/02 ,  H04J14/06

    摘要： Briefly, in accordance with one or more embodiments, a band of signal carriers is divided into a first band of carriers and a second band of carriers. The carriers in the first band comprise shorter wavelength carriers, and carriers in the second band comprise longer wavelength carriers. Each of the optical sources in the first and second bands of carriers are modulated with an input signal and coupled together via a polarization maintaining coupler. These signals are then combined via a polarization beam combiner wherein the first band has a polarization state that is orthogonal, or nearly orthogonal, to a polarization of the second state.

    摘要翻译： 简而言之，根据一个或多个实施例，信号载波的频带被划分成第一载波频带和第二载波频带。 第一频带中的载波包括较短的波长载波，并且第二频带中的载波包括更长的波长载波。 载波的第一和第二频带中的每个光源用输入信号调制并通过偏振保持耦合器耦合在一起。 这些信号然后经由偏振光束组合器组合，其中第一带具有与第二状态的极化正交或接近正交的偏振状态。

    Method and apparatus for chromatic dispersion compensation
    3.
    发明授权
    Method and apparatus for chromatic dispersion compensation 失效
    用于色散补偿的方法和装置

    公开(公告)号：US07379670B2

    公开(公告)日：2008-05-27

    申请号：US10103390

    申请日：2002-03-21

    申请人： Bamdad Bakhshi ,  Ekaterina A. Golovchenko ,  Dmitriy I. Kovsh ,  Michael Vaa

    发明人： Bamdad Bakhshi ,  Ekaterina A. Golovchenko ,  Dmitriy I. Kovsh ,  Michael Vaa

    IPC分类号： H04J14/02 ,  H04B10/12

    CPC分类号： H04B10/2513 ,  H04B10/2543

    摘要： A method and apparatus is provided for managing chromatic dispersion in an NRZ-based WDM long-haul optical transmission system so that nonlinearities are reduced, especially those at the edge channels of the band. The method includes using between 500 ps/nm and 2000 ps/nm of residual dispersion and a 40%/60% pre/post DCU split ratio when the channel wavelengths are shorter than the zero dispersion wavelength. Using these dispersion compensation rules, the nonlinear propagation effects in NRZ-based WDM systems is reduced, thus allowing for higher optical power per channel and/or longer transmission distances.

    摘要翻译： 提供了一种用于管理基于NRZ的WDM长距离光传输系统中的色散的方法和装置，使得非线性减小，特别是在频带的边缘信道处的非线性。 当沟道波长比零色散波长短时，该方法包括使用500ps / nm和2000ps / nm的残余色散和40％/ 60％的前/后DCU分离比。 使用这些色散补偿规则，减少了基于NRZ的WDM系统中的非线性传播效应，从而允许每个通道的更高的光功率和/或更长的传输距离。