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1. 发明公开

EP2226953A1 AN OPTICAL RELAY SYSTEM AND METHOD 有权
标题翻译：在VERFAHREN的OPTISCHES RELAISSYSTEM
公开(公告)号：EP2226953A1
公开(公告)日：2010-09-08
申请号：EP08862116.4
申请日：2008-11-27
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Lijun , XIONG, Qianjin
IPC分类号： H04B10/18
CPC分类号： H04B10/299
摘要： An optical relay system is provided, which includes a first optical signal distribution device (101), a phase detection device (103), an amplitude regeneration device (102), and a phase regeneration and load device (104). An optical relay method is further provided, which includes the following steps. A received input signal is divided into two paths; phase information of one path of the input signal is extracted, and is converted to an amplitude modulated signal; an amplitude of the other path of the input signal is restored, so as to generate an amplitude regenerated signal; a phase is loaded on the amplitude regenerated signal by using the amplitude modulated signal, so as to generate a phase regenerated signal. The system and method eliminate a phase noise of the signal in a transmission process, improve a transmission performance of the signal, and realize a simple implementation method.
摘要翻译：提供了一种光中继系统，其包括第一光信号分配装置（101），相位检测装置（103），振幅再生装置（102）和相位再生和装载装置（104）。还提供了一种光中继方法，其包括以下步骤。接收的输入信号被分成两条路径; 提取输入信号的一个路径的相位信息，并将其转换为幅度调制信号; 恢复输入信号的另一路径的振幅，以产生振幅再生信号; 通过使用幅度调制信号在幅度再生信号上加载相位，以产生相位再生信号。该系统和方法消除了传输过程中信号的相位噪声，提高了信号的传输性能，实现了一种简单的实现方法。

2. 发明公开

EP2352239A1 A METHOD, DEVICE AND SYSTEM FOR OPTIC-DEMODULATING THE OPTICAL CARRIER OF POLARIZATION DIVISION MULTIPLEXING 审中-公开
标题翻译： VERFAHREN，VORRICHTUNG UND SYSTEM ZUR OPTISCHEN DEMODULATION DES OPTISCHENTRÄGERSBEI POLARISATIONS-MULTIPLEXING
公开(公告)号：EP2352239A1
公开(公告)日：2011-08-03
申请号：EP09821523.9
申请日：2009-06-23
申请人： Huawei Technologies Co., Ltd.
发明人： XIONG, Qianjin , LI, Liangchuan , HUANG, Yuanda
IPC分类号： H04B10/00
CPC分类号： H04B10/671 , H04B10/5165 , H04B10/676 , H04B2210/003 , H04J14/06
摘要： A method, device, and system for optical Polarization Division Multiplexing (PDM) of an optical carrier are provided, which can improve the frequency spectrum utilization ratio of the system, improve the Chromatic Dispersion (CD) and Polarization Mode Dispersion (PMD) tolerance, and meanwhile lower the apparatus requirements and complexity of a receiving end. The method includes: splitting an optical carrier into two or more sets of optical sub-carriers at a receiving end; respectively performing optical PDM on each set of the optical sub-carriers to obtain two sets of to-be-demodulated optical signals; and extracting a part of signals from each set of the to-be-demodulated signals to calculate features characterizing polarization states, controlling feedback signals according to the features, and correspondingly adjusting a polarization state of each set of the optical sub-carriers. With the device combining optical division into two or more sets of sub-carriers with optical PDM, an optical carrier signal can be split in an optical modulation format into four or more sets of signals for processing, and delay interference can be performed directly on an optical wave by using Differential Quadrature Phase Shifted Keying (DQPSK) demodulators to obtain by detection output signals.
摘要翻译：提供了一种光载波光学偏振分复用（PDM）的方法，装置和系统，可以提高系统的频谱利用率，提高色散（CD）和偏振模色散（PMD）容差，同时降低了接收端的设备要求和复杂性。该方法包括：在接收端将光载波分为两组或多组光子载波; 分别在每组光子载波上执行光PDM以获得两组要解调的光信号; 并从每组待解调信号中提取一部分信号，以计算表征极化状态的特征，根据特征控制反馈信号，并相应地调整每组光子载波的极化状态。通过将光分组合成具有光PDM的两组或多组副载波，光载波信号可以以光调制格式分割成四组或更多组信号进行处理，并且延迟干扰可以直接在通过使用差分正交相移键控（DQPSK）解调器，通过检测输出信号获得光波。

3. 发明授权

EP2226953B1 AN OPTICAL RELAY SYSTEM AND METHOD 有权
标题翻译：光中继系统和方法
公开(公告)号：EP2226953B1
公开(公告)日：2014-04-30
申请号：EP08862116.4
申请日：2008-11-27
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Lijun , XIONG, Qianjin
IPC分类号： H04B10/299
CPC分类号： H04B10/299

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