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1. 发明授权

EP2136487B1 Optical receiving apparatus and digital receiving circuit 有权
标题翻译：光接收装置和数字接收电路
公开(公告)号：EP2136487B1
公开(公告)日：2018-01-10
申请号：EP09004533.7
申请日：2009-03-30
申请人： Fujitsu Limited
发明人： Nakashima, Hisao , Hoshida, Takeshi , Tanimura, Takahito , Li, Lei , Liu, Ling
IPC分类号： H04B10/61
CPC分类号： H04B10/6165 , H04B10/61 , H04B10/611 , H04L7/0054 , H04L27/223
摘要： An optical receiving apparatus includes a combining unit that combines signal light and reference light; a optoelectric converting unit that converts, into electrical signals, two or more optical signals that enable reconstruction of a complex electric field signal of the signal light obtained by the combining unit; and a sampling clock generating unit that generates a sampling clock that has a frequency preset based on a symbol rate of the signal light and is asynchronous with the signal light. The optical receiving apparatus further includes a digital converting unit that samples at the frequency of the sampling clock signal, an electrical signal obtained by the optoelectric converting unit and converts the electrical signal into a digital signal; and a digital signal processing unit that demodulates a received signal based on a complex digital signal obtained from the digital signal obtained by the digital converting unit.

2. 发明授权

EP2357740B1 Optical receiver 有权
标题翻译：光接收器
公开(公告)号：EP2357740B1
公开(公告)日：2017-05-17
申请号：EP11153327.9
申请日：2011-02-04
申请人： FUJITSU LIMITED
发明人： Komaki, Kosuke , Shioda, Masahiro , Fukumitsu, Katsumi , Takeuchi, Osamu
IPC分类号： H04B10/66 , H04B10/61 , H04L7/033 , H04L7/00 , H04B10/69 , H04L27/227 , H04L27/22
CPC分类号： H04B10/6971 , H04B10/61 , H04B10/611 , H04B10/613 , H04B10/6151 , H04B10/6161 , H04B10/6165 , H04L7/0004 , H04L7/0335 , H04L27/223 , H04L27/227

3. 发明授权

EP2550758B1 TUNABLE RECEIVER 有权
标题翻译： EINSTELLBAREREMPFÄNGER
公开(公告)号：EP2550758B1
公开(公告)日：2017-05-03
申请号：EP11712073
申请日：2011-03-08
申请人： ALCATEL-LUCENT USA INC
发明人： GRIPP JURGEN , SIMSARIAN JOHN EDWARD , ZIRNGIBL MARTIN
IPC分类号： H04B10/61 , H04J14/02
CPC分类号： H04B10/613 , H04B10/61 , H04B10/611 , H04B10/6161 , H04J14/0204 , H04J14/021 , H04J14/0227 , H04J14/0257 , H04J14/0283 , H04J14/06

4. 发明授权

EP2086130B1 Combined phase and polarization modulation for optical communication 有权
标题翻译：组合的相位和偏振调制用于光通信的
公开(公告)号：EP2086130B1
公开(公告)日：2013-01-09
申请号：EP08290078.8
申请日：2008-01-29
申请人： Alcatel Lucent
发明人： Charlet, Gebriel , Renaudier, Jérémie
IPC分类号： H04B10/50 , H04B10/61
CPC分类号： H04B10/61 , H04B10/532 , H04B10/5561 , H04B10/611 , H04B10/6163 , H04B10/6165 , H04B10/6166

5. 发明公开

EP2464069A3 Digital coherent optical receiver, adaptive equalizer, and digital coherent optical communication method 审中-公开
标题翻译：数字相干光接收器，自适应均衡器和数字相干光通信方法
公开(公告)号：EP2464069A3
公开(公告)日：2012-08-22
申请号：EP11187077.0
申请日：2011-10-28
申请人： Fujitsu Limited
发明人： Komaki, Kosuke , Takeuchi, Osamu
IPC分类号： H04L25/02
CPC分类号： H04L25/03019 , H04B10/611 , H04B10/6166 , H04L2025/0363
摘要： A digital coherent optical receiver includes an equalizing filter, a histogram generation device and a determination device. The equalizing filter separates electric signals obtained by converting an optical signal into a horizontal signal component and a vertical signal component. The histogram generation device generates a histogram of the horizontal signal component and the vertical signal component as outputs of the equalizing filter. The determination device determines the presence/absence of local convergence by comparing the number of pieces of data or the amplitude value of the histogram of the horizontal signal component and the histogram of the vertical signal component with the reference value.

6. 发明公开

EP2381596A1 Parallel digital filter 有权
标题翻译：平行机数字滤波器
公开(公告)号：EP2381596A1
公开(公告)日：2011-10-26
申请号：EP10305420.1
申请日：2010-04-21
申请人： Alcatel Lucent
发明人： Constantini, Carlo , Leven, Andreas , Cucchi, Silvio , Weisser, Stefan , Kaneda, Noriaki , Rinaldi, Sonia
IPC分类号： H04B10/148 , H03H17/02 , H04L27/38
CPC分类号： H04B10/613 , H03H17/026 , H04B10/61 , H04B10/611 , H04L27/223 , H04L27/227 , H04L27/3818 , H04L2027/0036 , H04L2027/0069
摘要： It is disclosed a digital filter configured to receive a sequence of samples, in particular to receive in parallel N samples per clock cycle, and to calculate a sum of L consecutive samples of the sequence. The digital filter comprises an integrating circuit and a differentiating circuit. The integrating circuit calculates two integrals of the sequence, up to the first sample and up to the last sample of the L consecutive samples, respectively. The differentiating circuit calculates the sum as a difference between the two integrals. The integrating circuit comprises: a cumulative sum module calculating a cumulative sum of the last sample and preceding samples received within the current clock cycle; a register storing a delayed integral calculated on samples received before the current clock cycle; and an addition module calculating the integral of the sequence up to the last sample by adding the cumulative sum and the delayed integral.
摘要翻译：公开了一种数字滤波器，其被配置为接收采样序列，特别是每个时钟周期并行接收N个采样，并且计算该序列的L个连续采样的和。数字滤波器包括积分电路和微分电路。积分电路分别计算序列的两个积分，直到第一个样本和L个连续样本的最后一个样本。微分电路将该和计算为两个积分之间的差值。积分电路包括：累积和模块，计算在当前时钟周期内接收到的最后一个样本和先前样本的累积和; 寄存器，用于存储在当前时钟周期之前接收到的样本计算的延迟积分; 以及加法模块，通过加上累积和和延迟积分来计算直到最后一个样本的序列的积分。

7. 发明公开

EP2381595A1 Phase skew compensation at a coherent optical receiver 有权
标题翻译：相干光接收器处的相位偏移补偿
公开(公告)号：EP2381595A1
公开(公告)日：2011-10-26
申请号：EP10305417.7
申请日：2010-04-21
申请人： Alcatel Lucent
发明人： Leven, Andreas , Constantini, Carlo , Cucchi, Silvio , Weisser, Stefan , Kaneda, Noriaki , Cenzato, Luca
IPC分类号： H04B10/148
CPC分类号： H04B10/61 , H04B10/611 , H04B10/613 , H04B10/6165
摘要： It is disclosed a coherent optical receiver configured to receive a modulated optical signal and to generate an in-phase component and a quadrature component. The optical coherent receiver comprises a phase skew compensator in turn comprising a first digital circuit and a second digital circuit retroactively connected between an output and a control input of the first digital circuit. The first digital circuit provides a compensated in-phase component as a sum of the in-phase component multiplied by a first gain and the quadrature component multiplied by a second gain, and a compensated quadrature component as a sum of the in-phase component multiplied by a third gain and the quadrature component multiplied by a fourth gain. The second digital circuit computes the first, second, third and fourth gain as functions of an estimated cross-correlation between the compensated in-phase component and the compensated quadrature component.
摘要翻译：公开了一种相干光接收机，其被配置为接收调制光信号并且生成同相分量和正交分量。该光相干接收机包括相位偏移补偿器，该相位偏移补偿器进而包括第一数字电路和第二数字电路，该第二数字电路追溯地连接在第一数字电路的输出端和控制输入端之间。第一数字电路提供补偿的同相分量，作为同相分量乘以第一增益和正交分量乘以第二增益的总和，补偿正交分量作为同相分量乘以乘以第三增益并且正交分量乘以第四增益。第二数字电路计算第一，第二，第三和第四增益作为补偿的同相分量和补偿的正交分量之间的估计的互相关的函数。

8. 发明公开

EP2366224A1 CYCLE SLIP LOCATION AND CORRECTION 有权
标题翻译：分离和周跳修正
公开(公告)号：EP2366224A1
公开(公告)日：2011-09-21
申请号：EP09829905.0
申请日：2009-11-12
申请人： Ciena Luxembourg S.a.r.l.
发明人： HARLEY, James , ROBERTS, Kim, B. , SUN, Han
IPC分类号： H04B10/18 , H04B10/148
CPC分类号： H03M13/336 , H03M13/333 , H04B10/611 , H04B10/6164
摘要： Methods and techniques are disclosed for correcting the effect of cycle slips in a coherent communications system A signal comprising SYNC bursts having a predetermined periodicity and a plurality of known symbols at predetermined locations between successive SYNC bursts is received The received signal is partitioned into data blocks Each data block encompasses at least data symbols and a set of check symbols corresponding to the plurality of known symbols at predetermined locations between a respective pair of successive SYNC bursts in the signal Each data block is processed to detect a cycle slip When a cycle slip is detected, the set of check symbols of the data block are examined to identify a first slipped check symbol, and a phase correction applied to data symbols of the data block lying between the first slipped check symbol and an end of the data block.

9. 发明公开

EP2348651A1 Method for retrieving a signal 审中-公开
标题翻译： Verfahren zum Abrufen eines信号
公开(公告)号：EP2348651A1
公开(公告)日：2011-07-27
申请号：EP11151215.8
申请日：2011-01-18
申请人： Alcatel Lucent
发明人： Bertran Pardo, Oriol , Salsi, Massimiliano
IPC分类号： H04B10/148 , H04B10/17 , H04B10/158 , H04J14/02
CPC分类号： H04B10/6971 , H04B10/294 , H04B10/60 , H04B10/611 , H04B10/6161 , H04J14/002
摘要： The present invention pertains to a method for retrieving at least one optical signal transmitted over a communication network by a transmission channel, said method using coherent detection and comprising the following steps:
- a coherent mixing of at least one transmitted optical signal and a baseline signal emitted by at least one frequency-tunable local oscillator,
- a sampling of the signals derived from the coherent mixing, comprising an analog-digital conversion,
- a digital signal processing,

wherein the digital signal processing comprises a spectrum analysis function.
摘要翻译：本发明涉及一种用于检索通过传输信道在通信网络上发送的至少一个光信号的方法，所述方法使用相干检测，并且包括以下步骤： - 至少一个传输的光信号和基线信号的相干混合由至少一个频率可调谐的本地振荡器发射的 - 从相干混合导出的信号的采样，包括模数转换，数字信号处理，其中所述数字信号处理包括频谱分析功能。

10. 发明公开

EP2343840A1 Method, device and optical node for coherent reception of an optical signal 审中-公开
标题翻译：一种方法，装置，和光网络节点的光信号的相干接收
公开(公告)号：EP2343840A1
公开(公告)日：2011-07-13
申请号：EP11150497.3
申请日：2011-01-10
申请人： Alcatel Lucent
发明人： Bertran Pardo, Oriol , Renaudier, Jérémie , Bigo, Sébastien
IPC分类号： H04B10/148 , H04J14/02
CPC分类号： H04B10/611 , H04B10/60 , H04B10/614
摘要： The present invention pertains to a method for retrieving at least one optical signal transmitted over a communication network comprising a plurality of transmission wavelength channels, said method using coherent detection and comprising the following steps:
- a coherent mixing of the optical signal transmitted over a transmission wavelength and a baseline signal emitted by at least one local oscillator,
- a sampling of the signals derived from the coherent mixing, comprising an analog-digital conversion,
- a digital signal processing,
wherein said a local oscillator comprises means for generating a frequency comb whose spectral lines correspond to the wavelength of the network's transmission channels in such a way that the reference signal comprises a spectral line corresponding to the transmission wavelengths channel of the transmitted signal.
摘要翻译：本发明涉及一种方法，用于在通信网络上使用相干检测，其包括传输的波长信道，所述方法的多元性检索至少一个光信号的反式mitted和包括以下步骤： - 所述光信号的反式的相干混合mitted通过传输波长和由至少一个本地振荡器发射的基线信号， - 从所述相干混合得到的信号的采样，包括模拟 - 数字转换， - 数字信号处理，worin所述本地振荡器的装置包括，用于产生一个频率梳其光谱线对应于所述网络的传输信道的波长在寻求一种方式做了参考信号包括频谱线对应于所述反式mitted信号的传输信道的波长。

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