专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2014058898A1 RESOURCE-EFFICIENT DIGITAL CHROMATIC DISPERSION COMPENSATION IN FIBER OPTICAL COMMUNICATION USING SPECTRAL-SHAPING SUBCARRIER MODULATION 审中-公开
标题翻译：光纤通信中的资源化数字色散补偿，使用光谱分片调制
公开(公告)号：WO2014058898A1
公开(公告)日：2014-04-17
申请号：PCT/US2013/063910
申请日：2013-10-08
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FUTUREWEI TECHNOLOGIES, INC.
发明人： BAI, Yu Sheng , ZHU, Yanjun , GUO, Qing , CUI, Yan , ZHU, Fei
IPC分类号： H04B10/532 , H04B10/58 , H04J14/06 , H04B10/61
CPC分类号： H04B10/25137 , H04B10/532 , H04B10/58 , H04B10/6161 , H04J14/00 , H04J14/02 , H04J14/06
摘要： An optical receiver comprising a frontend configured to receive an optical signal and convert the optical signal into a plurality of digital electrical signals comprising a plurality of spectrally shaped subcarrier signals carrying symbol mapped data information, and a digital signal processor (DSP) unit coupled to the frontend and configured to receive the digital signals from the frontend, demulitplex the digital signals into the subcarrier signals, and compensate chromatic dispersion (CD) for each of the subcarrier signals by applying an equalizer, wherein each of the subcarrier signals is associated with a unique tone frequency and a unique spectral shape. Also disclosed is an optical transmitter comprising a digital signal processor (DSP) unit configured to map data symbols onto a plurality of electrical subcarrier signals that are non-overlapping and spectrally shaped in a frequency domain.
摘要翻译：一种光接收机，包括：前端，被配置为接收光信号，并将所述光信号转换为多个数字电信号，所述数字电信号包括携带符号映射数据信息的多个频谱形状的子载波信号;以及数字信号处理器（DSP）单元，前端并且被配置为从前端接收数字信号，将数字信号解复用为副载波信号，并通过应用均衡器来补偿每个子载波信号的色散（CD），其中每个子载波信号与唯一的色调频率和独特的光谱形状。还公开了一种光发射机，包括数字信号处理器（DSP）单元，其被配置为将数据符号映射到在频域中不重叠和频谱成形的多个电副载波信号。

2. 发明申请

WO2016164634A1 OPTICAL TRANSCEIVING USING SELF-HOMODYNE DETECTION (SHD) AND REMOTE MODULATION 审中-公开
标题翻译：使用自我检测（SHD）和远程调制的光学收发
公开(公告)号：WO2016164634A1
公开(公告)日：2016-10-13
申请号：PCT/US2016/026516
申请日：2016-04-07
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FUTUREWEI TECHNOLOGIES, INC.
发明人： LI, Zhihong , ZHU, Fei , BAI, Yu Sheng
IPC分类号： H04B10/40 , H04B10/63 , H04J14/02
CPC分类号： H04B10/40 , H04B10/503 , H04B10/54 , H04B10/58 , H04B10/616 , H04B10/63
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.
摘要翻译：第一光收发器节点包括：被配置为发射输入光信号的激光器; 耦合到所述激光器并且被配置为将所述输入光信号分离成本地振荡器（LO）光信号和未调制的光信号的第一分离器; 以及接收器，其耦合到所述第一分离器并且被配置为：从所述第一分离器接收所述LO光信号; 从第二光收发器节点接收经调制的光信号，其中调制的光信号是未调制光信号的调制版本; 并使用LO光信号执行调制光信号的相位噪声消除。

3. 发明申请

WO2015157733A1 METHOD AND SYSTEM FOR PERFORMING FIBER NONLINEARITY COMPENSATION FOR OPTICAL 16QAM 审中-公开
标题翻译：用于光纤16QAM光纤非线性补偿的方法和系统
公开(公告)号：WO2015157733A1
公开(公告)日：2015-10-15
申请号：PCT/US2015/025474
申请日：2015-04-10
申请人： FUTUREWEI TECHNOLOGIES, INC. , HUAWEI TECHNOLOGIES CO., LTD.
发明人： PENG, Wei, Ren , ZHU, Fei , BAI, Yusheng
IPC分类号： H04B10/58 , H04B10/61 , H04L27/06
CPC分类号： H04B10/2543 , H04B10/541 , H04B10/5561 , H04B2210/252 , H04B2210/254 , H04L27/3488
摘要： A method for reducing link fiber nonlinearities executed by a processor. The method includes decomposing a high order quadrature amplitude modulation (QAM) input into a plurality of sub-components. The method includes applying a plurality of logical operations to the plurality of sub-components. The method includes determining a non-linear compensation term based on the applying the plurality of logical operations to the plurality of sub-components.
摘要翻译：一种降低由处理器执行的链路光纤非线性的方法。该方法包括将高阶正交幅度调制（QAM）输入分解为多个子分量。该方法包括对多个子组件应用多个逻辑运算。该方法包括基于将多个逻辑运算应用于多个子组件来确定非线性补偿项。

4. 发明申请

WO2014085342A1 LEVEL EQUALIZATION TO COMPENSATE FOR IMPLEMENTATION IMPAIRMENTS IN OPTICAL COMMUNICATION SYSTEMS WITH HIGH-ORDER MODULATIONS 审中-公开
标题翻译：对高阶调制的光通信系统中的执行补偿进行均衡化补偿
公开(公告)号：WO2014085342A1
公开(公告)日：2014-06-05
申请号：PCT/US2013/071729
申请日：2013-11-25
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FUTUREWEI TECHNOLOGIES, INC.
发明人： KAN, Clarence , LI, Zhihong , ZHU, Fei
IPC分类号： H04B10/61
CPC分类号： H04L27/01 , H04B10/613 , H04B10/614 , H04B10/616 , H04L25/03012 , H04L25/03159
摘要： A method comprising receiving digital samples from an optical communication system, assigning the samples into bins based on signal levels of the samples, computing an average signal level for each bin, determining a level adjustment transformation function for the samples based on the average signal levels of the bins, and applying the level adjustment transformation function to the samples. Also, disclosed is an optical receiver comprising a frontend configured to receive an optical signal over an optical channel, and convert the optical signal into a plurality of sequences of digital samples, and a processor coupled to the frontend and configured to perform a channel equalization on the samples of the sequences, assign the channel equalized samples of each sequence into bins based on signal levels of the channel equalized samples, determine a level adjustment transformation function for each sequence, and apply the level adjustment transformation function to each sequence.
摘要翻译：一种方法，包括从光通信系统接收数字样本，基于样本的信号电平将样本分配到分组中，计算每个分组的平均信号电平，基于平均信号电平确定样本的电平调整变换函数并对样品应用电平调整变换功能。此外，公开了一种光接收机，其包括前端，其被配置为通过光信道接收光信号，并将光信号转换成多个数字采样序列，以及耦合到前端的处理器，并且被配置为执行信道均衡序列样本基于信道均衡样本的信号电平将每个序列的信道均衡样本分配到信息包中，确定每个序列的电平调整变换函数，并将电平调整变换函数应用于每个序列。

5. 发明申请

WO2017088697A1 JOINT ACQUISITION OF CHROMATIC DISPERSION AND FREQUENCY OFFSET IN OPTICAL SYSTEMS 审中-公开
标题翻译：光学系统中色散和频偏的联合采集
公开(公告)号：WO2017088697A1
公开(公告)日：2017-06-01
申请号：PCT/CN2016/106281
申请日：2016-11-17
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： KRISHNAN, Murali , GUO, Qing , ZHU, Fei , BAI, Yusheng
IPC分类号： H04B10/2513
CPC分类号： H04B10/2513 , H04B10/40 , H04B10/532 , H04B10/6161 , H04B10/6164
摘要： An optical transceiver in an optical communications network, comprising a receiver configured to receive an optical signal comprising an X-polarization component and a Y-polarization component. The optical transceiver further comprises a processor coupled to the receiver and configured to determine a chromatic dispersion (CD) estimate and a local oscillator frequency offset (LOFO) estimate based on a relationship between a plurality of CD values and a plurality of LOFO values. The optical transceiver further comprises a transmitter coupled to the processor and configured to transmit the CD estimate, the LOFO estimate, and the optical signal to a downstream component in the optical communications network.
摘要翻译：光学通信网络中的光学收发器，其包括被配置为接收包括X偏振分量和Y偏振分量的光学信号的接收器。该光学收发器进一步包括处理器，其耦合到接收器并且被配置为基于多个CD值和多个LOFO值之间的关系来确定色散（CD）估计和本地振荡器频率偏移（LOFO）估计。光收发器还包括耦合到处理器并且被配置为将CD估计，LOFO估计和光信号传输到光通信网络中的下游组件的发射器。

6. 发明申请

WO2016184301A1 POLARIZATION INDEPENDENT REFLECTIVE MODULATOR 审中-公开
标题翻译：极化独立反射调制器
公开(公告)号：WO2016184301A1
公开(公告)日：2016-11-24
申请号：PCT/CN2016/080513
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 and a method are provided. The apparatus (100) comprises an optical input (147) configured to receive an optical carrier (141), an polarization beam splitter (155) configured to forward a first polarized component of the optical carrier (141) along a first light path (156), and forward a second polarized component of the optical carrier (141) along a second light path (158), and an optical modulator (159). The first polarized component comprises a first polarization (TE) that is perpendicular to a second polarization (TM) of the second polarized component upon exiting the optical splitter (155). The optical modulator (159) is coupled to the first light path (156) and the second light path (158), and is configured to modulate the first polarized component of the optical carrier and the second polarized component of the optical carrier.
摘要翻译：提供了一种装置和方法。装置（100）包括被配置为接收光学载体（141）的光学输入端（147），被配置为沿着第一光路（156）转发光学载体（141）的第一偏振分量的偏振分束器），并且沿着第二光路（158）和光学调制器（159）前进光学载体（141）的第二偏振分量。第一偏振分量包括在离开分光器（155）时垂直于第二偏振分量的第二偏振（TM）的第一偏振（TE）。光调制器（159）耦合到第一光路（156）和第二光路（158），并且被配置为调制光载波的第一偏振分量和光载波的第二偏振分量。

7. 发明申请

WO2013174304A1 METHOD WITH IMPROVED PHASE ROBUSTNESS IN COHERENT DETECTED OPTICAL SYSTEM 审中-公开
标题翻译：在相干检测光学系统中改进相位稳定性的方法
公开(公告)号：WO2013174304A1
公开(公告)日：2013-11-28
申请号：PCT/CN2013/076215
申请日：2013-05-24
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： LI, Chuandong , CHEN, Yuanjie , ZHANG, Zhuhong , CAI, Yi , ZHU, Fei
IPC分类号： H04B10/61
CPC分类号： H04B10/613 , H04B10/6164
摘要： An optical signal receiver tracks local oscillator frequency offset (LOFO) and compensates for the phase distortion introduced in the received signals as a result of utilizing the local oscillator within a coherent detection scheme. This phase distortion is basically a constant phase rotation caused by the LOFO and implementation of the receiver using coherent detection and a digital interferometer instead of a conventional (yet complex) carrier phase estimation or recovery scheme. With an optical receiver implemented in this manner, the requirement of using a precise local oscillator laser with low frequency offset is less important.
摘要翻译：光信号接收器跟踪本地振荡器频率偏移（LOFO），并且通过在相干检测方案中利用本地振荡器来补偿在接收信号中引入的相位失真。该相位失真基本上是由LOFO引起的恒定相位旋转和使用相干检测的接收机的实现以及数字干涉仪而不是常规（但复杂的）载波相位估计或恢复方案。通过以这种方式实现的光接收机，使用具有低频偏移的精确本地振荡器激光器的要求不那么重要。

8. 发明申请

WO2016138860A1 POLARIZATION STATE ALIGNER (PSA) 审中-公开
标题翻译：极化状态对齐器（PSA）
公开(公告)号：WO2016138860A1
公开(公告)日：2016-09-09
申请号：PCT/CN2016/075335
申请日：2016-03-02
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： WEN, Yangjing , ZHU, Fei , BAI, Yusheng
IPC分类号： G02F1/01 , G01J4/00
CPC分类号： H04B10/614 , G02B6/272 , H04B10/2572 , H04B10/5053 , H04B10/532 , H04B10/6151
摘要： A system comprises: a polarization state aligner (PSA) comprising: an input port; a first polarization beam splitter (PBS) coupled to the input port; a first phase shifter (PS) coupled to the first PBS; a first polarization rotator (PR) coupled to the first PBS; a first beam splitter (BS) coupled to the first PS and the first PR; a first output port coupled to the first BS; and a second output port coupled to the first BS.
摘要翻译：一种系统包括：偏振态对准器（PSA），包括：输入端口; 耦合到输入端口的第一偏振分束器（PBS）耦合到第一PBS的第一移相器（PS）耦合到第一PBS的第一偏振旋转器（PR）耦合到第一PS和第一PR的第一分束器（BS）耦合到第一BS的第一输出端口; 以及耦合到第一BS的第二输出端口。

9. 发明申请

WO2013104340A1 METHOD AND APPARATUS OF USING DIGITAL EQUALIZER FOR CASCADED WAVELENGTH SELECTIVE SWITCH COMPENSATION 审中-公开
标题翻译：使用数字均衡器进行波形选择开关补偿的方法和装置
公开(公告)号：WO2013104340A1
公开(公告)日：2013-07-18
申请号：PCT/CN2013/070423
申请日：2013-01-14
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： ZHANG, Zhuhong , LI, Yanming , LI, Chuandong , ZHU, Fei
IPC分类号： H04B10/00
CPC分类号： H04B10/614 , H04B10/532 , H04B10/556 , H04B10/613 , H04B10/616 , H04L25/03012 , H04L25/03159 , H04L2025/0342 , H04L2025/03541
摘要： An apparatus comprising a frequency-domain equalizer that has been iteratively generated to compensate for filtering effects of a wavelength selective switch, wherein the FDEQ is configured to process in a frequency domain digital samples of a polarization multiplexed phase- shift-keying signal that has been transported over an optical channel.
摘要翻译：一种包括经过迭代产生以补偿波长选择开关的滤波效应的频域均衡器的装置，其中FDEQ被配置为在频域中处理已经经过的偏振复用相移键控信号的数字采样通过光通道传输。

10. 发明申请

WO2012016548A1 METHOD AND APPARATUS FOR BROADBAND CARRIER FREQUENCY AND PHASE RECOVERY IN COHERENT OPTICAL SYSTEM 审中-公开
标题翻译：宽带载波频率和相干光系统相位恢复的方法与装置
公开(公告)号：WO2012016548A1
公开(公告)日：2012-02-09
申请号：PCT/CN2011/078100
申请日：2011-08-08
申请人： HUAWEI TECHNOLOGIES CO., LTD. , ZHANG, Zhuhong , LI, Chuandong , ZHU, Fei , BAI, Yusheng
发明人： ZHANG, Zhuhong , LI, Chuandong , ZHU, Fei , BAI, Yusheng
IPC分类号： H04L27/227
CPC分类号： H04B10/6165 , H04B10/611 , H04B10/613 , H04B10/6161 , H04B10/6164 , H04J14/0228 , H04L1/242 , H04L7/0054 , H04L7/02 , H04L7/027 , H04L7/04 , H04L7/041 , H04L7/08 , H04L25/0202 , H04L25/022 , H04L25/0222 , H04L25/03828 , H04W24/02
摘要： A digital apparatus comprising a fast Fourier transform (FFT) module configured to transform a time domain optical signal into a frequency domain optical signal, a circular shifter coupled to the FFT module and configured to provide coarse frequency offset compensation to the frequency domain optical signal based on an estimated frequency offset; and a frequency offset estimation module coupled to the circular shifter and configured to provide the estimated frequency offset based on a power spectrum of the frequency domain optical signal or a data block header autocorrelation of the time domain optical signal.
摘要翻译：一种数字装置，包括被配置为将时域光信号变换为频域光信号的快速傅里叶变换（FFT）模块，耦合到FFT模块并被配置为向基于频域光信号的粗频偏移补偿提供的圆形移位器估计频偏; 以及耦合到所述圆形移位器并且被配置为基于所述频域光信号的功率谱或所述时域光信号的数据块报头自相关来提供所估计的频率偏移的频率偏移估计模块。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式