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    • 11. 发明申请
    • MODULATION IN AN OPTICAL NETWORK
    • 光网络调制
    • US20110274433A1
    • 2011-11-10
    • US13058924
    • 2008-10-07
    • Marco PresiErnesto CiaramellaFabio Cavaliere
    • Marco PresiErnesto CiaramellaFabio Cavaliere
    • H04J14/02
    • H04B10/2587H04B10/25759H04J14/0282
    • The invention relates to improvements in or relating to modulation in an Optical Network, and to an apparatus, a method and a communications network for modulation in an Optical Network. An apparatus is arranged to receive a modulated optical signal comprising a carrier wavelength and first data. The apparatus is arranged to substantially erase the first data from the optical signal by performing an inversion operation on the modulated optical signal. The apparatus is arranged to receive second data and to modulate the carrier wavelength with the second data for onward transmission of the second data. The inversion operation comprises applying a signal comprising an inverse of the first data to at least a portion of the modulated optical signal. The signal may further comprise the second data such that the modulation of the carrier wavelength and erasure of the first data is performed in a single operation.
    • 本发明涉及在光网络中的调制方面的改进或涉及光网络中的调制,以及用于光网络中的调制的装置,方法和通信网络。 一种装置被配置为接收包括载波波长和第一数据的调制光信号。 该装置被布置为通过对调制的光信号执行反转操作来从光信号基本上擦除第一数据。 该装置被设置为接收第二数据并且利用第二数据来调制载波波长以用于第二数据的向前传输。 反转操作包括将包括第一数据的逆的信号应用于调制光信号的至少一部分。 该信号还可以包括第二数据,使得在单个操作中执行载波波长的调制和第一数据的擦除。
    • 19. 发明授权
    • Channel power pre-emphasis in wavelength division multiplex optical communication systems
    • 波分复用光通信系统中的信道功率预加重
    • US07945161B2
    • 2011-05-17
    • US11572549
    • 2005-07-22
    • Ernesto CiaramellaFabio CavaliereLuca Giorgi
    • Ernesto CiaramellaFabio CavaliereLuca Giorgi
    • H04B10/08
    • H04J14/0221
    • An iterative method for power pre-emphasis of N optical channels in a Wavelength Division Multiplex (WDM) signal in an optical communication systems in accordance with which representative Xi characteristics are defined for the channels with among the characteristics there being included at least one characteristic that is a function of the Bit Error Rate (BER). The method including the iterative phases of running through the WDM signal channels and appraising for each channel said characteristics for the channel and for the channels adjacent thereto; comparing said channel characteristics with the homologous characteristics of the adjacent channels and, based on the results of the comparisons, selecting a predetermined action to be performed on the power transmitted on the ith channel; for all the channels, performing on the power of each the corresponding selected action; calculating a metric quality function of all the channels with the new powers changed with the selected actions and repeating the previous iterative phases from the beginning until the quality improvement is greater than a predetermined figure and/or a predetermined maximum number of iterations is reached.
    • 在光通信系统中的波分复用(WDM)信号中的N个光信道的功率预加重的迭代方法,根据哪个代表性的Xi特性被定义用于具有特征的信道,其中包括至少一个特性, 是误码率(BER)的函数。 该方法包括遍历WDM信号信道的迭代阶段,并针对每个信道评估用于信道和与其相邻的信道的所述特征; 将所述信道特性与相邻信道的同源特性进行比较,并且基于比较结果,选择要在第i个信道上发送的功率执行的预定动作; 对于所有的通道,执行每个相应的所选动作的动力; 用所选择的动作来计算新功率的所有信道的度量质量函数,并从开始重复前一个迭代阶段,直到质量改进大于预定数字和/或达到预定的最大迭代次数。