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23 条记录 (耗时 0.016 秒)

    OPTICAL TRANSCEIVING USING SELF-HOMODYNE DETECTION (SHD) AND REMOTE MODULATION
    1.
    发明公开
    OPTICAL TRANSCEIVING USING SELF-HOMODYNE DETECTION (SHD) AND REMOTE MODULATION 审中-公开
    使用自同伦检测（SHD）和远程调制的光学收发

    公开(公告)号：EP3269055A1

    公开(公告)日：2018-01-17

    申请号：EP16718105.6

    申请日：2016-04-07

    申请人： Huawei Technologies Co. Ltd.

    发明人： LI, Zhihong ,  ZHU, Fei ,  BAI, Yu Sheng

    IPC分类号： H04B10/40 ,  H04B10/63 ,  H04J14/02

    摘要： A first optical transceiver node comprises: a laser configured to emit an input optical signal; a first splitter coupled to the laser and configured to split the input optical signal into a local oscillator (LO) optical signal and an unmodulated optical signal; and a receiver coupled to the first splitter and configured to: receive the LO optical signal from the first splitter; receive a modulated optical signal from a second optical transceiver node, wherein the modulated optical signal is a modulated version of the unmodulated optical signal; and perform phase noise cancellation of the modulated optical signal using the LO optical signal.

    COMPENSATION OF NON-LINEAR TRANSMITTER IMPAIRMENTS IN OPTICAL COMMUNICATION NETWORKS
    3.
    发明公开
    COMPENSATION OF NON-LINEAR TRANSMITTER IMPAIRMENTS IN OPTICAL COMMUNICATION NETWORKS 审中-公开
    光通信网络中非线性发射机的误差补偿

    公开(公告)号：EP3161977A1

    公开(公告)日：2017-05-03

    申请号：EP15824672.8

    申请日：2015-07-21

    申请人： Huawei Technologies Co. Ltd.

    发明人： KAN, Clarence ,  ZHU, Fei ,  LI, Zhihong

    IPC分类号： H04B10/2543

    CPC分类号： H04B10/40 ,  H04B10/616 ,  H04B2210/252

    摘要： An optical transceiver comprises a transmitter configured to transmit a first signal, and a receiver coupled to the transmitter and configured to receive a first compensation, wherein the first compensation is based on a pattern-dependent analysis of the first signal, and provide the first compensation to the transmitter, wherein the transmitter is further configured to compensate a second signal based on the first compensation to form a first compensated signal, and transmit the first compensated signal. An optical transmitter comprises a digital signal processor (DSP) comprising a compensator, a digital-to-analog converter (DAC) coupled to the DSP, a radio frequency amplifier (RFA) coupled to the DAC, and an electrical-to-optical converter (EOC) coupled to the RFA. An optical receiver comprises an optical-to-electrical converter (OEC), an analog-to-digital converter (ADC) coupled to the OEC, and a digital signal processor (DSP) coupled to the ADC and comprising a calibrator.

    摘要翻译： 一种光学收发器包括：发射器，被配置为发射第一信号;以及接收器，耦合到发射器并被配置为接收第一补偿，其中第一补偿基于第一信号的与模式相关的分析，并且提供第一补偿 发送器，其中所述发送器还被配置为基于所述第一补偿来补偿第二信号以形成第一补偿信号，并且发送所述第一补偿信号。 一种光发射器包括：数字信号处理器（DSP），其包括补偿器，耦合到DSP的数模转换器（DAC），耦合到DAC的射频放大器（REA）以及电光转换器 （EOC）耦合到REA。 光学接收器包括光电转换器（OEC），耦合到OEC的模数转换器（ADC）以及耦合到ADC并包括校准器的数字信号处理器（DSP）。

    METHOD AND APPARATUS OF USING JOINT TIMING RECOVERY FOR A COHERENT OPTICAL SYSTEM
    6.
    发明授权
    METHOD AND APPARATUS OF USING JOINT TIMING RECOVERY FOR A COHERENT OPTICAL SYSTEM 有权
    在相干光学系统中使用联合定时恢复的方法和设备

    公开(公告)号：EP2828990B1

    公开(公告)日：2018-04-25

    申请号：EP13764765.7

    申请日：2013-03-19

    申请人： Huawei Technologies Co., Ltd.

    发明人： LI, Chuandong ,  ZHANG, Zhuhong ,  ZHU, Fei ,  BAI, YuSheng

    IPC分类号： H04B10/61

    CPC分类号： H04B10/6162

    摘要： An apparatus and method for performing joint equalization and timing recovery in coherent optical systems. The method includes equalizing signals to generate compensated polarization signals, wherein timing error in a distorted optical signal is calculated based on one of the compensated polarization signals. The method further includes performing resampling polarization signals to correct timing offset in an optical signal based on the calculated timing error. The calculated timing error may also be used to adaptively control one or more operating parameters of an external device.

    MACH-ZEHNDER MODULATOR BIAS CONTROL FOR ARBITRARY WAVEFORM GENERATION
    7.
    发明公开
    MACH-ZEHNDER MODULATOR BIAS CONTROL FOR ARBITRARY WAVEFORM GENERATION 有权
    MACH-ZEHNDER-MODULATOR-VORSPANNUNGSSTEUERUNG ZUR ERZEUGUNG BELIEBIGER WELLENFORMEN

    公开(公告)号：EP3108597A2

    公开(公告)日：2016-12-28

    申请号：EP15752679.9

    申请日：2015-02-24

    申请人： Huawei Technologies Co., Ltd.

    发明人： GUO, Qing ,  WANG, Jianfeng ,  ZHU, Fei

    IPC分类号： H04B10/564

    CPC分类号： H04B10/5053 ,  H04B3/466 ,  H04B10/50575 ,  H04B10/5161 ,  H04B10/5561

    摘要： A method comprising applying an In-phase (I) offset to an I component of an orthogonal pseudo-random coded direct current (DC) bias signal, applying a Quadrature-phase (Q) offset to a Q component of the orthogonal pseudo-random coded DC bias signal, applying an I dither signal to an I Mach-Zehnder modulator (MZM), wherein the I dither signal is based on the I component of the orthogonal pseudo-random coded DC bias signal, applying a Q dither signal to a Q MZM, wherein the Q dither signal is based on the Q component of the orthogonal pseudo-random coded DC bias signal, and performing arbitrary waveform generation (AWG) by modulating an analog data signal onto an optical carrier signal via the MZMs, wherein the I offset and the Q offset are selected to mitigate crosstalk between the I MZM and the Q MZM due to a finite extinction ratio.

    摘要翻译： 一种方法，包括对正交伪随机编码直流（DC）偏置信号的I分量施加同相（I）偏移，将正交相位（Q）偏移应用于正交伪随机的Q分量 编码的DC偏置信号，将I抖动信号施加到I Mach-Zehnder调制器（MZM），其中I抖动信号基于正交伪随机编码的DC偏置信号的I分量，将Q抖动信号施加到 Q MZM，其中Q抖动信号基于正交伪随机编码DC偏置信号的Q分量，并且通过经由MZM将模拟数据信号调制到光载波信号上来执行任意波形生成（AWG），其中， I偏移，并且由于有限的消光比，选择Q偏移以减轻I MZM和Q MZM之间的串扰。

    MACH-ZEHNDER MODULATOR BIAS CONTROL FOR ARBITRARY WAVEFORM GENERATION
    9.
    发明授权
    MACH-ZEHNDER MODULATOR BIAS CONTROL FOR ARBITRARY WAVEFORM GENERATION 有权

    公开(公告)号：EP3108597B1

    公开(公告)日：2018-06-06

    申请号：EP15752679.9

    申请日：2015-02-24

    申请人： Huawei Technologies Co., Ltd.

    发明人： GUO, Qing ,  WANG, Jianfeng ,  ZHU, Fei

    IPC分类号： H04B10/564

    CPC分类号： H04B10/5053 ,  H04B3/466 ,  H04B10/50575 ,  H04B10/5161 ,  H04B10/5561

    摘要： A method comprising applying an In-phase (I) offset to an I component of an orthogonal pseudo-random coded direct current (DC) bias signal, applying a Quadrature-phase (Q) offset to a Q component of the orthogonal pseudo-random coded DC bias signal, applying an I dither signal to an I Mach-Zehnder modulator (MZM), wherein the I dither signal is based on the I component of the orthogonal pseudo-random coded DC bias signal, applying a Q dither signal to a Q MZM, wherein the Q dither signal is based on the Q component of the orthogonal pseudo-random coded DC bias signal, and performing arbitrary waveform generation (AWG) by modulating an analog data signal onto an optical carrier signal via the MZMs, wherein the I offset and the Q offset are selected to mitigate crosstalk between the I MZM and the Q MZM due to a finite extinction ratio.

    POLARIZATION INDEPENDENT REFLECTIVE MODULATOR
    10.
    发明公开
    POLARIZATION INDEPENDENT REFLECTIVE MODULATOR 有权
    极化独立反射调制器

    公开(公告)号：EP3289407A1

    公开(公告)日：2018-03-07

    申请号：EP16795788.5

    申请日：2016-04-28

    申请人： Huawei Technologies Co., Ltd.

    发明人： WEN, Yangjing ,  ZHU, Fei ,  BAI, Yusheng

    IPC分类号： G02F1/01 ,  G02B27/28

    CPC分类号： H04J14/06 ,  G02F1/21 ,  G02F2001/211 ,  G02F2203/06 ,  H04B10/2575 ,  H04B10/272 ,  H04B10/505 ,  H04J2014/0253

    摘要： An apparatus comprising an optical input configured to receive an optical carrier, an polarization beam splitter configured to forward a first polarized component of the optical carrier along a first light path, and forward a second polarized component of the optical carrier along a second light path, wherein the first polarized component comprises a first polarization that is perpendicular to a second polarization of the second polarized component upon exiting the optical splitter, and an optical modulator coupled to the first light path and the second light path, the modulator configured to modulate the first polarized component of the optical carrier and the second polarized component of the optical carrier.