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公开(公告)号：US20150139658A1
公开(公告)日：2015-05-21
申请号：US14403318
申请日：2012-05-25
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。
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公开(公告)号：US09537579B2
公开(公告)日：2017-01-03
申请号：US14417594
申请日：2012-08-28
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。
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公开(公告)号：US20150222367A1
公开(公告)日：2015-08-06
申请号：US14417594
申请日：2012-08-28
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。
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公开(公告)号：US20150222369A1
公开(公告)日：2015-08-06
申请号：US14415028
申请日：2012-07-19
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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公开(公告)号：US09544064B2
公开(公告)日：2017-01-10
申请号：US14415028
申请日：2012-07-19
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。
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公开(公告)号：US08811828B2
公开(公告)日：2014-08-19
申请号：US13636121
申请日：2010-03-19
IPC分类号： H04B10/61
CPC分类号： H04B10/60 , H04B10/2575 , H04B10/516 , H04B10/611
摘要： An optical communications system (300, 400, 500) comprising a first transmit unit (301, 401, 402) and a first receive unit (302, 401, 402). The first transmit unit comprises an electro-optical modulator (311) for modulating one or more radio channels bearing electrical signals with a total bandwidth B by a laser signal (310) with a laser frequency fL1, and the first transmit unit also comprises a transmit filter for outgoing signals from the electro-optical modulator. The first receive unit comprises an electro-optical demodulator (313) for demodulating the one or more electrical signals received from the first transmit unit by means of a Local Oscillator, LO (312), which produces an optical signal at a second frequency fL2, and B ranges from the lower of fL1 and fL2 to the higher of fL1 and fL2.
摘要翻译： 一种包括第一发射单元（301,401,402）和第一接收单元（302,401,402）的光通信系统（300,400,500）。 第一发送单元包括电光调制器（311），用于通过具有激光频率fL1的激光信号（310）调制具有总带宽B的具有电信号的一个或多个无线电信道，并且第一发送单元还包括发送 滤波器用于来自电光调制器的输出信号。 第一接收单元包括用于通过本地振荡器LO（312）解调从第一发射单元接收的一个或多个电信号的电光解调器（313），其产生第二频率fL2的光信号， B的范围从fL1和fL2的较低者到fL1和fL2的较高者。
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7.发明申请Communications Network Transport Node, Optical Add-Drop Multiplexer and Method of Routing Communications Traffic 审中-公开通信网络传输节点，光分插复用器和路由通信流量的方法公开(公告)号：US20140198812A1
公开(公告)日：2014-07-17
申请号：US14123753
申请日：2011-06-03
IPC分类号： H04J14/02
CPC分类号： H04J14/0215 , H04J14/0202 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0257 , H04J14/0267 , H04Q11/0071
摘要： A communications network transport node comprising an optical add-drop multiplexer (OADM), comprising optical signal processing apparatus, electrical signal routing apparatus, and a packet switch. Each optical signal processing apparatus comprises an optical input, an optical output, optical-to-electrical (O-E) signal conversion apparatus arranged to receive input optical channel signals and to convert each into an input radio frequency (RF) modulated electrical channel signal, and electrical to optical (E-O) signal conversion apparatus arranged to receive output RF modulated electrical channel signals and to convert each into an output optical channel signal. The electrical signal routing apparatus determines which input RF modulated electrical channel signals are to be dropped, and routes these to the electrical drop outputs, and which are to be transmitted, and routes these to a selected E-O apparatus. The routing apparatus receives further electrical channel signals and routes these to a selected E-O apparatus.
摘要翻译： 一种包括光分插复用器（OADM）的通信网络传输节点，包括光信号处理设备，电信号路由设备和分组交换机。 每个光信号处理装置包括光输入，光输出，光 - 电（OE）信号转换装置，被布置成接收输入光信道信号并将其转换为输入射频（RF）调制电信号信号，以及 电耦合到光（EO）信号转换装置，被布置成接收输出的RF调制的电信号信号并将其转换为输出光信道信号。 电信号路由装置确定哪个输入RF调制电信号信号将被丢弃，并将它们路由到电滴输出，并将被发送，并将它们路由到所选择的E-O设备。 路由设备接收另外的电信道信号并将它们路由到所选的E-O设备。
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公开(公告)号：US20140133860A1
公开(公告)日：2014-05-15
申请号：US14128082
申请日：2011-06-29
IPC分类号： H04B10/2575 , H04J14/02
CPC分类号： H04B10/2575 , H04B10/5053 , H04B10/5165 , H04J14/0298
摘要： This disclosure is directed to an optical transmitter arrangement 100 and a method therein producing a first RF-signal UA1 comprising a first set of data A1 carried by a subcarrier fC1, and a second RF-signal UB1 comprising a second set of data B1 carried by the subcarrier fC1. Further producing a first transform signal H(UA1) being a Hilbert Transform of the first RF-signal UA1, and a second transform signal −H(UB1) being a Hilbert Transform of the second RF-signal UB1. In addition, modulating the optical carrier fopt with the first RF-signal UA1 and the first transform signal H(UA1), and forming a first sideband SB1 comprising the first set of data A1 at one side of the frequency f0 of the optical carrier fopt. In addition, modulating the optical carrier fopt with the second RF-signal UB1 and the second transform signal −H(UB1), and forming a second sideband SB2 comprising the second set of data B1 at the other side of the frequency f0 of the optical carrier fopt.
摘要翻译： 本公开涉及一种光发射器装置100及其方法，其中产生包括由副载波fC1承载的第一组数据A1的第一RF信号UA1和包括第二组数据B1的第二RF信号UB1，第二组数据B1由 子载波fC1。 进一步产生作为第一RF信号UA1的希尔伯特变换的第一变换信号H（UA1）和作为第二RF信号UB1的希尔伯特变换的第二变换信号-H（UB1）。 此外，用第一RF信号UA1和第一变换信号H（UA1）调制光载波，并形成第一边带SB1，该第一边带SB1包括光载波的频率f0的一侧的第一组数据A1 。 此外，用第二RF信号UB1和第二变换信号-H（UB1）调制光载波，并在光学器件的频率f0的另一侧形成包括第二组数据B1的第二边带SB2 载体怀孕
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公开(公告)号：US20130022362A1
公开(公告)日：2013-01-24
申请号：US13636121
申请日：2010-03-19
IPC分类号： H04B10/12
CPC分类号： H04B10/60 , H04B10/2575 , H04B10/516 , H04B10/611
摘要： An optical communications system (300, 400, 500) comprising a first transmit unit (301, 401, 402) and a first receive unit (302, 401, 402). The first transmit unit comprises an electro-optical modulator (311) for modulating one or more radio channels bearing electrical signals with a total bandwidth B by a laser signal (310) with a laser frequency fL1, and the first transmit unit also comprises a transmit filter for outgoing signals from the electro-optical modulator. The first receive unit comprises an electro-optical demodulator (313) for demodulating the one or more electrical signals received from the first transmit unit by means of a Local Oscillator, LO (312), which produces an optical signal at a second frequency fL2, and B ranges from the lower of fL1 and fL2 to the higher of fL1 and fL2.
摘要翻译： 一种包括第一发射单元（301,401,402）和第一接收单元（302,401,402）的光通信系统（300,400,500）。 第一发送单元包括电光调制器（311），用于通过具有激光频率fL1的激光信号（310）调制具有总带宽B的具有电信号的一个或多个无线电信道，并且第一发送单元还包括发送 滤波器用于来自电光调制器的输出信号。 第一接收单元包括用于通过本地振荡器LO（312）解调从第一发射单元接收的一个或多个电信号的电光解调器（313），其产生第二频率fL2的光信号， B的范围从fL1和fL2的较低者到fL1和fL2的较高者。
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公开(公告)号：US06912359B2
公开(公告)日：2005-06-28
申请号：US09949235
申请日：2001-09-07
CPC分类号： H04J14/0298 , H04B10/00
摘要： A suite of optical performance monitoring (OPM) methods, based on optical subcarrier multiplexing, are described by the invention. The strength of this approach lies in the simplicity of double sideband subcarrier signals and the fact that these signals travel the complete optical path with the baseband signal of interest. The subcarrier signals can be recovered using techniques described in the application and are immune to fiber dispersion induced fading.
摘要翻译： 本发明描述了一套基于光子载波复用的光学性能监测（OPM）方法。 这种方法的优点在于双边带副载波信号的简单性以及这些信号与感兴趣的基带信号一起行进完整光路的事实。 可以使用本申请中描述的技术来回收子载波信号，并且不受光纤色散引起的衰落的影响。
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