公开(公告)号：EP2429101A1

公开(公告)日：2012-03-14

申请号：EP10175752.4

申请日：2010-09-08

申请人： University College Cork-National University of Ireland, Cork

发明人： Ellis, Andrew. D. ,  Sygletos, Stylianos ,  Gunning, Fatima C. Garcia ,  Frascella, Paola ,  Ibrahim, Selwan K. ,  Weerasuriya, Ruwan

IPC分类号： H04B10/148 ,  H04B10/155 ,  H04J14/02

CPC分类号： H04B10/548 ,  H04J14/02 ,  H04J14/0201 ,  H04L27/2618 ,  H04L27/2646 ,  H04L27/2662

摘要： The invention provides a multi-carrier system for use in an optical network adapted to transmit and/or receive signals, said system comprising means for recovering multiple phase-synchronised sub-carriers from at least one signal in the network; means for recovering a clock signal from the sub-carriers and determining the frequency and the phase change between sub-carriers; and means for compensating the signal using said clock signal. The clock signal can be re-used for new generation of same frequency spacing subcarriers (and phase-locked) to the original signal. Any fluctuations of both frequency and the phase from the original phase-synchronised signal is transferred also to the clock signal, and therefore, using appropriate feedback electronics, compensation can be provided at a transmitter/receiver. Suitable for Optical Orthogonal Frequency Division Multiplexing (OFDM) and Coherent WDM multi-carrier systems.

摘要翻译： 本发明提供了一种用于在适于发送和/或接收信号的光网络中使用的多载波系统，所述系统包括用于从网络中的至少一个信号恢复多个相位同步子载波的装置; 用于从子载波恢复时钟信号并确定子载波之间的频率和相位变化的装置; 以及用于使用所述时钟信号补偿信号的装置。 时钟信号可以重新用于与原始信号相同的频率间隔副载波（和锁相）的新一代。 来自原始相位同步信号的频率和相位的任何波动也被传送到时钟信号，因此使用适当的反馈电子装置可以在发射机/接收机处提供补偿。 适用于光学正交频分复用（OFDM）和相干WDM多载波系统。