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1. 发明授权

US09537579B2 Analog phase noise compensation for coherent optical communication 有权
标题翻译：用于相干光通信的模拟相位噪声补偿
公开(公告)号：US09537579B2
公开(公告)日：2017-01-03
申请号：US14417594
申请日：2012-08-28
申请人： Bengt-Erik Olsson , Christina Larsson
发明人： Bengt-Erik Olsson , Christina Larsson
IPC分类号： H04B10/61 , H04B10/64
CPC分类号： H04B10/6165 , H04B10/64
摘要： The invention relates to a noise compensation system, configured for compensating phase noise in coherent optical communications, and to a method for compensating phase noise. The noise compensation system comprises a transmitter (1) comprising a pilot unit (5) configured for providing a pilot tone comprising a pilot spectrum, wherein the transmitter (1) is configured for transmitting an information signal comprising an information spectrum, a detecting unit (2) comprising a local oscillator lasing unit (7) configured for transmitting a local oscillator signal, wherein the detecting unit (2) is configured for combining the information signal with the local oscillator signal such that an input signal spectrum generated at an output of the detecting unit comprises an information about phase noise in the information spectrum, and a phase noise compensator (3) comprising a first branch, configured for filtering the pilot tone, and a second branch, configured for mixing the information signal with the filtered pilot tone, wherein after mixing an output signal spectrum is obtained at an output of the phase noise compensator (3) on the basis of the information about phase noise in the information spectrum such that the output signal spectrum corresponds to a phase noise compensated copy of the pilot spectrum. In this way, a noise compensation system is provided which is simple and cost-effective to realize and allows compensating phase noise in the analog domain without the need of knowledge about transmission parameters.
摘要翻译：本发明涉及一种被配置为补偿相干光通信中的相位噪声的噪声补偿系统以及用于补偿相位噪声的方法。噪声补偿系统包括发射机（1），包括被配置为提供包括导频频谱的导频音调的导频单元（5），其中发射机（1）被配置用于发射包括信息频谱的信息信号，检测单元 2）包括被配置为发送本地振荡器信号的本地振荡器激光单元（7），其中所述检测单元（2）被配置为将信息信号与本地振荡器信号组合，使得在输出端产生的输入信号频谱检测单元包括关于信息频谱中的相位噪声的信息，以及相位噪声补偿器（3），包括被配置为滤波导频音的第一分支和用于将信息信号与滤波后的导频音混合的第二分支，其中在混合之后，基于信息abou在相位噪声补偿器（3）的输出处获得输出信号频谱信号频谱中的相位噪声，使得输出信号频谱对应于导频频谱的相位噪声补偿副本。以这种方式，提供噪声补偿系统，其实现并且允许在模拟域中补偿相位噪声是简单且成本有效的，而不需要关于传输参数的知识。

2. 发明申请

US20150222367A1 Analog Phase Noise Compensation for Coherent Optical Communication 有权
标题翻译：相干光通信模拟相位噪声补偿
公开(公告)号：US20150222367A1
公开(公告)日：2015-08-06
申请号：US14417594
申请日：2012-08-28
申请人： Bengt-Erik Olsson , Christina Larsson
发明人： Bengt-Erik Olsson , Christina Larsson
IPC分类号： H04B10/61
CPC分类号： H04B10/6165 , H04B10/64
摘要： The invention relates to a noise compensation system, configured for compensating phase noise in coherent optical communications, and to a method for compensating phase noise. The noise compensation system comprises a transmitter (1) comprising a pilot unit (5) configured for providing a pilot tone comprising a pilot spectrum, wherein the transmitter (1) is configured for transmitting an information signal comprising an information spectrum, a detecting unit (2) comprising a local oscillator lasing unit (7) configured for transmitting a local oscillator signal, wherein the detecting unit (2) is configured for combining the information signal with the local oscillator signal such that an input signal spectrum generated at an output of the detecting unit comprises an information about phase noise in the information spectrum, and a phase noise compensator (3) comprising a first branch, configured for filtering the pilot tone, and a second branch, configured for mixing the information signal with the filtered pilot tone, wherein after mixing an output signal spectrum is obtained at an output of the phase noise compensator (3) on the basis of the information about phase noise in the information spectrum such that the output signal spectrum corresponds to a phase noise compensated copy of the pilot spectrum. In this way, a noise compensation system is provided which is simple and cost-effective to realize and allows compensating phase noise in the analog domain without the need of knowledge about transmission parameters.
摘要翻译：本发明涉及一种被配置为补偿相干光通信中的相位噪声的噪声补偿系统以及用于补偿相位噪声的方法。噪声补偿系统包括发射机（1），包括被配置为提供包括导频频谱的导频音调的导频单元（5），其中发射机（1）被配置用于发射包括信息频谱的信息信号，检测单元 2）包括被配置为发送本地振荡器信号的本地振荡器激光单元（7），其中所述检测单元（2）被配置为将信息信号与本地振荡器信号组合，使得在输出端产生的输入信号频谱检测单元包括关于信息频谱中的相位噪声的信息，以及相位噪声补偿器（3），包括被配置为滤波导频音的第一分支和用于将信息信号与滤波后的导频音混合的第二分支，其中在混合之后，基于信息abou在相位噪声补偿器（3）的输出处获得输出信号频谱信号频谱中的相位噪声，使得输出信号频谱对应于导频频谱的相位噪声补偿副本。以这种方式，提供噪声补偿系统，其实现并且允许在模拟域中补偿相位噪声是简单且成本有效的，而不需要关于传输参数的知识。

3. 发明申请

US20150139658A1 ADAPTIVE MULTI-CHANNEL TRANSMITTER WITH CONSTANT DATA THROUGHPUT 审中-公开
标题翻译：具有恒定数据的自适应多通道发射机
公开(公告)号：US20150139658A1
公开(公告)日：2015-05-21
申请号：US14403318
申请日：2012-05-25
申请人： Bengt-Erik Olsson , Christina Larsson
发明人： Bengt-Erik Olsson , Christina Larsson
IPC分类号： H04L27/34 , H04L5/00 , H04L27/20 , H04L27/36 , H04B10/2575 , H04L1/00
CPC分类号： H04L27/3405 , H04B10/2575 , H04L1/0002 , H04L1/0003 , H04L1/0015 , H04L5/006 , H04L27/2057 , H04L27/2096 , H04L27/362
摘要： The present disclosure is directed to a transmitter arrangement 200; 400 and a method therein for transmitting a signal OB comprising a number of data streams D1, D2, D3, D4 and a number of sub-channels BP1, BP2, BP3, BP4; QP1, QP2; QA1 to a receiver 150 via a transmission link 140. The method comprises the actions of: obtaining link quality information indicative of the transmission conditions for the transmission link 140, and determining the number of sub-channels for the output signal based on obtained the transmission conditions such that the transmitted data throughput via the transmission link 140 remains the same and such that the transmitted data throughput is equally distributed between the determined number of sub-channels.
摘要翻译：本公开涉及发射器装置200; 400及其中用于发送包括多个数据流D1，D2，D3，D4和多个子信道BP1，BP2，BP3，BP4的信号OB的方法; QP1，QP2; QA1经由传输链路140到接收机150.该方法包括以下动作：获得指示传输链路140的传输条件的链路质量信息，以及基于获得的传输来确定输出信号的子信道数量使得经由传输链路140的传输的数据吞吐量保持相同并且使得发送的数据吞吐量被均等地分布在确定数量的子信道之间的条件。

4. 发明授权

US09544064B2 Electro-optical implementation of an optical spectrum inverter 有权
标题翻译：光学光学实现光谱逆变器
公开(公告)号：US09544064B2
公开(公告)日：2017-01-10
申请号：US14415028
申请日：2012-07-19
申请人： Bengt-Erik Olsson , Christina Larsson
发明人： Bengt-Erik Olsson , Christina Larsson
IPC分类号： H04B10/00 , H04B10/61 , H04B10/2531 , H04B10/255 , H04B10/2557 , H04J14/02 , H04J14/06 , H04L5/14 , H04B10/64
CPC分类号： H04B10/6166 , H04B10/2531 , H04B10/255 , H04B10/2557 , H04B10/6163 , H04B10/64 , H04J14/0202 , H04J14/06 , H04L5/14
摘要： The invention relates to an optical spectrum inverter, configured for counteracting phase distortion effects in an optical channel over a predefined frequency range, to an inverter node, configured for duplex operation in at least two wavelength channels, and to a method for counteracting phase distortion effects in an optical channel. The optical spectrum inverter comprises an optical receiver comprising a polarization diversity unit configured for polarization resolved detection, wherein the optical receiver is configured for receiving an optical input signal comprising a first wavelength span and for converting the optical input signal to an electrical signal, and an optical modulator connectable to the optical receiver and configured for modulating the electrical signal onto an optical signal, wherein the optical modulator comprises an optical filter which is configured for selecting a second wavelength span of the optical signal corresponding to an optical output side band of an inverted spectrum of the optical channel such that phase distortion effects are counteracted at least partly over the predefined frequency range. In this way, an optical spectrum inverter is provided which is simple and cost-effective to realize and allows higher optical power levels in conjunction with a higher capacity per optical channel and is also adapted for longer transmission distances.
摘要翻译：本发明涉及一种被配置为将预定频率范围内的光信道中的相位失真效应抵消到被配置为在至少两个波长信道中进行双工操作的逆变器节点的光谱逆变器以及用于抵消相位失真效应的方法在光通道中。所述光学频谱逆变器包括光接收器，该光接收器包括被配置用于偏振分辨检测的偏振分集单元，其中所述光接收器被配置为接收包括第一波长跨度的光输入信号并将所述光输入信号转换成电信号，光调制器，其可连接到光接收器并且被配置用于将电信号调制到光信号上，其中所述光调制器包括滤光器，所述滤光器被配置为选择对应于反转的光输出侧带的所述光信号的第二波长跨度光通道的频谱，使得相位失真效应至少部分地超过预定义的频率范围。以这种方式，提供了一种光谱逆变器，其实现并且允许更高的光功率水平与每个光通道的更高容量相结合，并且还适合于更长的传输距离。

5. 发明申请

US20150222369A1 ELECTRO-OPTICAL IMPLEMENTATION OF AN OPTICAL SPECTRUM INVERTER 有权
标题翻译：光学光电逆变器的电光实现
公开(公告)号：US20150222369A1
公开(公告)日：2015-08-06
申请号：US14415028
申请日：2012-07-19
申请人： Bengt-Erik Olsson , Christina Larsson
发明人： Bengt-Erik Olsson , Christina Larsson
IPC分类号： H04B10/61 , H04J14/02 , H04L5/14 , H04J14/06
CPC分类号： H04B10/6166 , H04B10/2531 , H04B10/255 , H04B10/2557 , H04B10/6163 , H04B10/64 , H04J14/0202 , H04J14/06 , H04L5/14
摘要： The invention relates to an optical spectrum inverter, configured for counteracting phase distortion effects in an optical channel over a predefined frequency range, to an inverter node, configured for duplex operation in at least two wavelength channels, and to a method for counteracting phase distortion effects in an optical channel. The optical spectrum inverter comprises an optical receiver comprising a polarization diversity unit configured for polarization resolved detection, wherein the optical receiver is configured for receiving an optical input signal comprising a first wavelength span and for converting the optical input signal to an electrical signal, and an optical modulator connectable to the optical receiver and configured for modulating the electrical signal onto an optical signal, wherein the optical modulator comprises an optical filter which is configured for selecting a second wavelength span of the optical signal corresponding to an optical output side band of an inverted spectrum of the optical channel such that phase distortion effects are counteracted at least partly over the predefined frequency range. In this way, an optical spectrum inverter is provided which is simple and cost-effective to realize and allows higher optical power levels in conjunction with a higher capacity per optical channel and is also adapted for longer transmission distances.
摘要翻译：本发明涉及一种被配置为将预定频率范围内的光信道中的相位失真效应抵消到被配置为在至少两个波长信道中进行双工操作的逆变器节点的光谱逆变器以及用于抵消相位失真效应的方法在光通道中。所述光学频谱逆变器包括光接收器，该光接收器包括被配置用于偏振分辨检测的偏振分集单元，其中所述光接收器被配置为接收包括第一波长跨度的光输入信号并将所述光输入信号转换成电信号，光调制器，其可连接到光接收器并且被配置用于将电信号调制到光信号上，其中所述光调制器包括滤光器，所述滤光器被配置为选择对应于反转的光输出侧带的所述光信号的第二波长跨度光通道的频谱，使得相位失真效应至少部分地超过预定义的频率范围。以这种方式，提供了一种光谱逆变器，其实现并且允许更高的光功率水平与每个光通道的更高容量相结合，并且还适合于更长的传输距离。

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