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21 条记录 (耗时 0.015 秒)

    SIGNAL PROCESSING IN AN OPTICAL RECEIVER
    4.
    发明公开
    SIGNAL PROCESSING IN AN OPTICAL RECEIVER 审中-公开

    公开(公告)号：EP3326306A1

    公开(公告)日：2018-05-30

    申请号：EP16733940.7

    申请日：2016-06-29

    申请人： Xieon Networks S.à r.l.

    发明人： CALABRÒ, Stefano ,  SPINNLER, Bernhard

    IPC分类号： H04B10/61

    CPC分类号： H04J14/06 ,  H04B7/0413 ,  H04B10/2569 ,  H04B10/6161 ,  H04B10/6162 ,  H04B10/6165 ,  H04B10/6971

    摘要： The present invention relates to signal processing in an optical receiver, in particular to equalization performed in coherent optical receivers. A multiple-input multiple-output (MIMO) equalizer receives and equalizes a plurality of real value signals, for example four sampled electrical baseband tributaries (HI, HQ, VI, VQ). The outputs of the multiple-input multiple-output (MIMO) equalizer provide equalized real or imaginary components of complex signals. The complex signals including the real and imaginary components are then each and individually equalized to remove chromatic dispersion.

    DATA-AIDED CHROMATIC DISPERSION ESTIMATION
    5.
    发明公开
    DATA-AIDED CHROMATIC DISPERSION ESTIMATION 审中-公开
    数据赞助的色散估计

    公开(公告)号：EP3192188A1

    公开(公告)日：2017-07-19

    申请号：EP15736464.7

    申请日：2015-07-09

    申请人： Xieon Networks S.à r.l.

    发明人： DRUMMOND, Miguel ,  SPINNLER, Bernhard ,  CALABRO, Stefano

    IPC分类号： H04B10/2507 ,  H04B10/2513 ,  H04B10/69 ,  H04J14/08

    CPC分类号： H04B10/25073 ,  H04B10/25133 ,  H04B10/6971

    摘要： The present invention relates to performing chromatic dispersion estimation in a receiver of an optical communication system. Here, the signal received by the receiver includes frames, each comprising a training portion and a data portion. The training portion comprises a plurality of identical pattern sequences. Different settings are applied to an equalizer to generate a plurality of equalized signals from at least one of the received frames. Then, at least one correlation value is calculated between a first pattern sequence and a second pattern sequence of the equalized signals and a final correlation value is derived from the respective correlation values. The setting of the equalizer corresponding to the equalized signal providing the highest final correlation value is selected to provide the chromatic dispersion estimation.

    摘要翻译： 本发明涉及在光通信系统的接收机中执行色散估计。 这里，接收器接收的信号包括帧，每帧包括训练部分和数据部分。 训练部分包括多个相同的模式序列。 不同的设置被应用于均衡器以从至少一个接收到的帧生成多个均衡信号。 然后，在均衡信号的第一模式序列和第二模式序列之间计算至少一个相关值，并从各自相关值导出最终相关值。 选择对应于提供最高最终相关值的均衡信号的均衡器的设置以提供色散估计。

    CLOCK RECOVERY METHOD AND CLOCK RECOVERY ARRANGEMENT FOR COHERENT POLARISATION MULTIPLEX RECEIVERS
    9.
    发明授权
    CLOCK RECOVERY METHOD AND CLOCK RECOVERY ARRANGEMENT FOR COHERENT POLARISATION MULTIPLEX RECEIVERS 有权
    相干极化多路复用接收机的时钟恢复方法和时钟恢复装置

    公开(公告)号：EP2532107B1

    公开(公告)日：2017-05-17

    申请号：EP11702620.3

    申请日：2011-02-02

    申请人： Xieon Networks S.à r.l.

    发明人： BIANCIOTTO, Alessandro ,  SPINNLER, Bernhard ,  NAPOLI, Antonio ,  HEBEBRAND, Christina

    IPC分类号： H04L7/00 ,  H04L7/033 ,  H04J14/06 ,  H04B10/61

    CPC分类号： H04J14/06 ,  H04B10/614 ,  H04B10/6161 ,  H04B10/6165 ,  H04L7/0029 ,  H04L7/0075 ,  H04L7/0079 ,  H04L7/0331

    摘要： Component signal values (XI, XQ; YI, YQ) are derived from component signals (xi, xq, yi, yq) and fed to least one fixed equaliser (EQU) which generates equalizer output signals (X IE , X QE , Y IE , Y QE ) . These signals are fed to phase error detectors (PD3, PD4) generating phase error signals (X PE3 Y PE4 ). These phase error signals (X PEi ) are combined with further phase error signals (X PE1 , Y PE2 ) derived by further error detectors (PD1, PD2) receiving signal values from further equalizers and/or the component signal values (XI, XO ; YI, YQ) directly from sample units (15, 16).

    摘要翻译： 从分量信号（xi，xq，yi，yq）导出分量信号值（XI，XQ; YI，YQ）并馈送到至少一个固定均衡器（EQU），其产生均衡器输出信号（X IE，X QE，Y IE ，Y QE）。 这些信号被馈送到产生相位误差信号（X PE3 Y PE4）的相位误差检测器（PD3，PD4）。 这些相位误差信号（X PEi）与由另外的误差检测器（PD1，PD2）接收的来自另外的均衡器的信号值和/或分量信号值（XI，XO; YI，YQ）直接来自样本单元（15,16）。

    DUAL PARALLEL MACH-ZEHNDER-MODULATOR DEVICE WITH PRE-DISTORTED DRIVING VOLTAGES
    10.
    发明公开
    DUAL PARALLEL MACH-ZEHNDER-MODULATOR DEVICE WITH PRE-DISTORTED DRIVING VOLTAGES 审中-公开
    DUALE PARALLELE MACH-ZEHNDER-MODULATORVORRICHTUNG MIT VORVERZERRTEN ANSTEUERUNGSSPANNUNGEN

    公开(公告)号：EP3120472A1

    公开(公告)日：2017-01-25

    申请号：EP15709915.1

    申请日：2015-03-12

    申请人： Xieon Networks S.à r.l.

    发明人： BIANCIOTTO, Alessandro ,  CALABRO, Stefano ,  KUSCHNEROV, Maxim ,  MEZGHANNI, Mahdi ,  NAPOLI, Antonio ,  SPINNLER, Bernhard

    IPC分类号： H04B10/50 ,  H04B1/62 ,  H04B10/588 ,  H04J14/02

    摘要： Disclosed herein is a dual parallel Mach-Zehnder-modulator (DPMZM) device comprising a DPMZM 10 having first and second inner MZMs arranged parallel to each other. The first inner MZM generates an in-phase component E I of an optical signal in response to a first driving voltage V I , and the second inner MZM generates a quadrature component E Q of said optical signal in response to a second driving voltage V Q . Further disclosed is a calculation unit 52 configured for receiving an in-phase component y I and a quadrature component y Q of a desired base-band signal, and for calculating pre-distorted first and second driving voltages V I , V Q . The calculation of the pre-distorted first and second driving voltages V I , V Q is based on a model of said DPMZM 10 accounting for I-Q cross-talk, and using an algorithm that determines said first and second driving voltages V I , V Q each as a function of both of said in-phase and quadrature components y I , y Q of said base-band signal.

    摘要翻译： 本文公开了一种双并联马赫 - 曾德尔调制器（DPMZM）装置，其包括具有彼此平行布置的第一和第二内部MZM的DPMZM 10。 第一内部MZM响应于第一驱动电压V I产生光学信号的同相分量E I，并且第二内部MZM响应于第二驱动电压V Q产生所述光学信号的正交分量E Q。 还公开了一种计算单元52，被配置为接收期望的基带信号的同相分量y I和正交分量y Q，并且用于计算预失真的第一和第二驱动电压V I，V Q。 预失真的第一和第二驱动电压VI，VQ的计算基于所述DPMZM 10的IQ串扰模型，并且使用确定所述第一和第二驱动电压VI，VQ作为函数的算法 所述基带信号的所述同相和正交分量y I，y Q两者。