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    Coherent detection using coherent decoding and interleaving
    3.
    发明公开
    Coherent detection using coherent decoding and interleaving 有权
    维也纳奥地利维也纳

    公开(公告)号：EP2549671A1

    公开(公告)日：2013-01-23

    申请号：EP12177492.1

    申请日：2012-07-23

    申请人： Infinera Corporation

    发明人： Sun, Han ,  Wu, Kuang-Tsan ,  Wu, Yuejian ,  Thomson, Sandy

    IPC分类号： H04L1/00 ,  H04B10/61

    CPC分类号： H04B10/6165 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0071 ,  H04L1/20 ,  H04L1/244 ,  H04L27/223

    摘要： A system is configured to receive a block of symbols, associated with a phase-modulated signal that includes data symbols that correspond to a payload associated with the signal, and control symbols; process the control symbols to identify an amount of phase noise associated with the control symbols; reset a phase, associated with each of the data symbols, based on the amount of phase noise and a reference phase; interleave the respective data samples, of each of the data symbols with other data samples, where the interleaved respective data samples cause errors, associated with the respective data samples, to be spread out among the other data samples and reduces an error rate relative to a prior data rate that existed before the interleaving; and perform forward error correction on the interleaved respective data samples.

    摘要翻译： 系统被配置为接收与包括对应于与该信号相关联的有效载荷的数据符号的相位调制信号和控制符号相关联的符号块; 处理控制符号以识别与控制符号相关联的相位噪声量; 基于相位噪声量和参考相位复位与每个数据符号相关联的相位; 将每个数据符号的各个数据样本与其他数据样本交织在一起，其中交织的相应数据样本导致与各个数据样本相关联的错误，在其他数据样本中展开，并减少相对于 在交织之前存在的先前数据速率; 并对交错的各个数据样本执行前向纠错。

    Multiplexer and modulation arrangements for multi-carrier optical modems
    4.
    发明公开
    Multiplexer and modulation arrangements for multi-carrier optical modems 审中-公开
    用于多路复用和调制光多载波调制解调设备

    公开(公告)号：EP2506477A3

    公开(公告)日：2016-11-09

    申请号：EP12162820.0

    申请日：2012-04-02

    申请人： Infinera Corporation

    发明人： McNicol, John D. ,  Wu, Kuang-Tsan ,  Sun, Han Henry

    IPC分类号： H04J14/02

    CPC分类号： H04B10/506 ,  H04B10/5161 ,  H04B10/675 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0256 ,  H04J14/026 ,  H04J14/06

    摘要： Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, and converted to an analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the received data forming a plurality of corresponding carriers. The carriers are modulated according to one of a plurality of modulation formats and then optically combined to form a superchannel of a constant maximum capacity, for example. Accordingly, the number of carriers and the bit rate for each carrier remain constant for each modulation format to realize a constant maximum capacity. The superchannel is then transmitted over an optical communication path to a receive node. At the receive node, the superchannel is optically demultiplexed from a plurality of other superchannels. The plurality of carriers of the superchannel are then supplied to a photodetector circuit, which receives additional light at one of the optical signal carrier wavelengths from a local oscillator laser. An analog-to-digital converter (ADC) is provided in the receive node to convert the electrical signals output from the photodetector into digital form. The output from the ADC is then filtered in the electrical domain, such that optical demultiplexing of the carriers is unnecessary.

    Multiplexer and modulation arrangements for multi-carrier optical modems
    5.
    发明公开
    Multiplexer and modulation arrangements for multi-carrier optical modems 审中-公开
    Vorrichtungen zum Multiplexen und ModulationfüroptischeMehrträgermodems

    公开(公告)号：EP2506477A2

    公开(公告)日：2012-10-03

    申请号：EP12162820.0

    申请日：2012-04-02

    申请人： Infinera Corporation

    发明人： McNicol, John D. ,  Wu, Kuang-Tsan ,  Sun, Han Henry

    IPC分类号： H04J14/02 ,  H04B10/155

    CPC分类号： H04B10/506 ,  H04B10/5161 ,  H04B10/675 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0256 ,  H04J14/026 ,  H04J14/06

    摘要： Consistent with the present disclosure, data, in digital form, is received by a transmit node of an optical communication system, and converted to an analog signal by a digital-to-analog converter (DAC) to drive a modulator. The modulator, in turn, modulates light at one of a plurality of wavelengths in accordance with the received data forming a plurality of corresponding carriers. The carriers are modulated according to one of a plurality of modulation formats and then optically combined to form a superchannel of a constant maximum capacity, for example. Accordingly, the number of carriers and the bit rate for each carrier remain constant for each modulation format to realize a constant maximum capacity. The superchannel is then transmitted over an optical communication path to a receive node. At the receive node, the superchannel is optically demultiplexed from a plurality of other superchannels. The plurality of carriers of the superchannel are then supplied to a photodetector circuit, which receives additional light at one of the optical signal carrier wavelengths from a local oscillator laser. An analog-to-digital converter (ADC) is provided in the receive node to convert the electrical signals output from the photodetector into digital form. The output from the ADC is then filtered in the electrical domain, such that optical demultiplexing of the carriers is unnecessary.

    摘要翻译： 与本公开一致，数字形式的数据由光通信系统的发射节点接收，并由数模转换器（DAC）转换为模拟信号以驱动调制器。 调制器又根据形成多个相应载波的接收数据调制多个波长中的一个波长的光。 载波根据多种调制格式之一进行调制，然后光学组合以形成例如恒定最大容量的超频道。 因此，每个载波的数量和每个载波的比特率对于每个调制格式保持不变，以实现恒定的最大容量。 然后，超信道通过光通信路径传送到接收节点。 在接收节点处，超级信道从多个其他超级信道被光解复用。 然后将超声道的多个载体提供给光电检测器电路，该光电检测器电路从本地振荡器激光器接收来自光信号载波波长中的一个的附加光。 在接收节点中提供模数转换器（ADC），以将从光电检测器输出的电信号转换为数字形式。 然后在电域中对来自ADC的输出进行滤波，使得载波的光解复用是不必要的。