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1. 发明授权

EP2543150B1 METHOD AND SYSTEM FOR NON-LINEARITY COMPENSATION IN OPTICAL TRANSMISSION SYSTEMS 有权
公开(公告)号：EP2543150B1
公开(公告)日：2018-05-30
申请号：EP11750073.6
申请日：2011-03-01
申请人： Ofidium Pty Ltd
发明人： LOWERY, Arthur James , DU, Liang Bangyuan
IPC分类号： H04B10/61 , H04B10/2507
CPC分类号： H04B10/25073 , H04B10/6161 , H04B10/6163 , H04B10/6971
摘要： An equalizer (200) for equalization of a signal transmitted via an optical fiber link from a transmitter to a corresponding receiver employs a backpropagation model (300) which comprises one or more sequential segments collectively representing an inverse fiber link. Each sequential segment comprises a linear backpropagation element (304), and a non-linear backpropagation element (306) having an associated compensation bandwidth (312). The equalizer (200) generates a distortion-mitigated signal by computing, for each sequential segment in turn, a first linear compensated signal from a signal input to the segment in accordance with the linear backpropagation element (304), and a non-linear compensated signal from the first linear compensated signal in accordance with the non-linear backpropagation element (306). Computation of the non-linear compensation signal comprises limiting a bandwidth of a compensation signal derived from the first linear compensated signal in accordance with the associated compensation bandwidth (312).

2. 发明授权

EP2530856B1 Digital coherent receiver and phase control method 有权
标题翻译： DigitalerKohärenzempfängerund Phasensteuerverfahren
公开(公告)号：EP2530856B1
公开(公告)日：2017-03-22
申请号：EP12163880.3
申请日：2012-04-12
申请人： FUJITSU LIMITED
发明人： Komaki, Kosuke , Nakashima, Hisao
IPC分类号： H04B10/2507 , H04B10/2569 , H04L7/00 , H04L7/033 , H04B10/69
CPC分类号： H04B10/25073 , H04B10/2569 , H04B10/6971 , H04L7/0087 , H04L7/0335

3. 发明授权

EP1156607B2 Radiation power equalizer 有权
标题翻译：的辐射功率均衡器
公开(公告)号：EP1156607B2
公开(公告)日：2016-07-06
申请号：EP01304000.1
申请日：2001-05-01
申请人： Ericsson AB
发明人： Claringburn, Harry Richard , Baker, Martin George , Sharratt, Michael
IPC分类号： H04B10/2507 , H04J14/02
CPC分类号： H04J14/0221 , H04B10/25073 , H04J14/0204 , H04J14/0205 , H04J14/021 , H04J14/0213

4. 发明公开

EP2709327A2 Updating apparatus and method for equalizer coefficient, receiver and optical communication system 失效
标题翻译：更新的设备和方法用于Verzerrerkoeffizienten，接收器和光通信系统
公开(公告)号：EP2709327A2
公开(公告)日：2014-03-19
申请号：EP13183503.5
申请日：2013-09-09
申请人： FUJITSU LIMITED
发明人： Dou, Liang , Tao, Zhenning
IPC分类号： H04L25/03 , H04B10/00
CPC分类号： H04B10/25073 , H04B10/616 , H04B10/6162 , H04L25/03006 , H04L25/0305 , H04L25/03114 , H04L2025/03426 , H04L2025/03592 , H04L2025/0377
摘要： The present invention provides an updating apparatus and method for an equalizer coefficient, receiver and optical communication system. The updating method comprises: receiving an optical signal transmitted by a transmitter in an optical communication system, the optical signal comprising transmission data and a constant modulus signal for updating a coefficient of an equalization filter; performing coherent detection and analog-to-digital conversion on the optical signal, so as to obtain a digital electric signal; and updating the coefficient of the equalization filter at a symbol corresponding to the constant modulus signal in the digital electric signal. With the embodiments of the present invention, not only the coefficients of the equalizer may be optimized, but also being adapted to signals in various modulation formats, and the complexity of the channel equalization may be lowered as well.
摘要翻译：本发明提供关于更新的装置和方法，用于在均衡器系数，接收器和光通信系统中的更新方法包括：。在光学通信系统中由发射机mitted光信号的反式的接收，所述光信号包括发送数据以及恒模信号用于更新均衡滤波器的系数; 对光信号进行相干检测和模拟 - 数字转换，从而得到数字电信号; 以及更新所述均衡滤波器的系数在一个符号对应于所述数字电信号的恒模信号。与本发明的实施例，不仅所述均衡器的系数可以被这样优化，但是angepasst以各种调制格式信号，并且所述信道均衡的复杂性可以被降低为好。

5. 发明公开

EP2543150A2 METHOD AND SYSTEM FOR NON-LINEARITY COMPENSATION IN OPTICAL TRANSMISSION SYSTEMS 有权
标题翻译：方法和系统的非线性光传输系统中补偿
公开(公告)号：EP2543150A2
公开(公告)日：2013-01-09
申请号：EP11750073.6
申请日：2011-03-01
申请人： Ofidium Pty Ltd
发明人： LOWERY, Arthur James , DU, Liang Bangyuan
IPC分类号： H04B10/18
CPC分类号： H04B10/25073 , H04B10/6161 , H04B10/6163 , H04B10/6971
摘要： An equaliser (200) for equalisation of a signal transmitted via an optical fibre link from a transmitter to a corresponding receiver employs a backpropagation model (300) which comprises one or more sequential segments collectively representing an inverse fibre link. Each sequential segment comprises a linear backpropagation element (304), and a non-linear backpropagation element (306) having an associated compensation bandwidth (312). The equaliser (200) generates a distortion-mitigated signal by computing, for each sequential segment in turn, a first linear compensated signal from a signal input to the segment in accordance with the linear backpropagation element (304), and a non-linear compensated signal from the first linear compensated signal in accordance with the non-linear backpropagation element (306). Computation of the non-linear compensation signal comprises limiting a bandwidth of a compensation signal derived from the first linear compensated signal in accordance with the associated compensation bandwidth (312).

6. 发明授权

EP1753102B1 Method for optimizing output in ultrashort-pulse multipass laser amplifiers with selective use of a spectral filter 有权
标题翻译：通过选择性地使用光谱过滤器，用于多通激光放大器超短脉冲的优化的方法
公开(公告)号：EP1753102B1
公开(公告)日：2009-10-07
申请号：EP06016513.1
申请日：2006-08-08
申请人： The Regents of The University of Colorado, A Body Corporate
发明人： Backus, Sterling J. , Kapteyn, Henry C.
IPC分类号： H01S3/10 , H01S3/106
CPC分类号： H01S3/0057 , H01S3/005 , H01S3/0078 , H01S3/025 , H01S3/0407 , H01S3/10023 , H01S3/1625 , H01S3/1636 , H01S3/2325 , H01S2301/02 , H01S2301/04 , H04B10/25073

7. 发明公开

EP1635486A1 Optical signal repeating and amplifying device and optical level adjusting device 审中-公开
标题翻译：装置Verstärkerung和光信号和光信号的电平调整装置的中间放大
公开(公告)号：EP1635486A1
公开(公告)日：2006-03-15
申请号：EP05027614.6
申请日：1998-11-30
申请人： NEC Corporation
发明人： Shimomura, Hirofumi , Henmi, Naoya
IPC分类号： H04B10/17 , H04B10/18 , H04J14/02
CPC分类号： H04B10/25073 , H04B10/2941 , H04B2210/258 , H04J14/02 , H04J14/0221
摘要： Disclosed is an optical signal repeating and amplifying device which has: an optical amplifier which amplifies an optical signal to be input thereto and then outputs it; and an optical filter means through which only one wavelength light of the optical signal to be output from the optical amplifier is passed. Also disclosed is an optical level adjusting device which has: an optical demultiplexer which demultiplexes a wavelength-multiplexed optical signal into a plurality of wavelength lights; a plurality of optical attenuators which attenuate separately the demultiplexed plurality of wavelength lights to be output from the optical demultiplexer; and an optical multiplexer which multiplexes the attenuated wavelength lights to be output from the plurality of optical attenuators into a wavelength-multiplexed optical signal and output it.
摘要翻译：公开了一种光信号中继和放大装置，其具有：光学放大器放大哪个光信号的以与其输入，然后输出它; 并通过手段滤光器仅使光信号中的一个波长的光被输出来自光放大器被传递。游离缺失所以盘是具有光平调整装置，在其中解复用的波长复用的光信号转换成的波长的光的多个光学多路分解器; 其中分别衰减的波长的光解复用的多元性可从光学信号分离器输出的光衰减器的一个多元化; 和光多路复用器多路复用待衰减的波长的光从光衰减器的多个输出成波长复用光信号，并输出它。

8. 发明授权

EP1312175B1 VERFAHREN ZUR BESTIMMUNG UND KOMPENSATION DER VERKIPPUNG DES SPEKTRUMS IN EINER LICHTLEITFASER EINER DATENÜBERTRAGUNGSSTRECKE 有权
标题翻译：一种用于在倾斜光纤的数据传输路径识别和频谱补偿
公开(公告)号：EP1312175B1
公开(公告)日：2005-02-23
申请号：EP01964895.5
申请日：2001-08-10
申请人： SIEMENS AKTIENGESELLSCHAFT
发明人： ELBERS, Jörg-Peter , FÄRBERT, Andreas , GLINGENER, Christoph , RAPP, Lutz , SCHEERER, Christian
IPC分类号： H04B10/08 , H04B10/18
CPC分类号： H04B10/2537 , H04B10/077 , H04B10/07955 , H04B10/25073

9. 发明公开

EP1291985A1 Gain flattening optical filter, optical amplifier comprising such an optical filter and method for manufacturing such an optical filter 审中-公开
标题翻译：平滑滤光器，这种过滤器和Herstellungsverfanren光放大器的增益
公开(公告)号：EP1291985A1
公开(公告)日：2003-03-12
申请号：EP01121439.2
申请日：2001-09-07
申请人： Corning O.T.I. S.p.A.
发明人： Tormen, Maurizio , Belmonte, Michele
IPC分类号： H01S3/067 , G02B6/16 , H04B10/18
CPC分类号： H04B10/2941 , G02B6/02085 , G02B6/02138 , G02B6/266 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/06779 , H01S2301/04 , H04B10/25073 , H04B10/2519
摘要： An optical signal amplification device (200) comprises an optical amplifier (210) having a wavelength-dependent gain and an equalization device (100) optically coupled in series to the optical amplifier and having a wavelength-dependent transmission function that substantially equalize the gain of the optical amplifier, the equalization device comprising a waveguide Bragg grating having a substantially constant refractive index envelope and a chirp rate that varies in such a way as to obtain the wavelength-dependent transmission function.
摘要翻译：一种光信号放大装置（200），其具有依赖于波长的增益和均衡装置（100）串联的光耦合到所述光放大器，并且具有依赖于波长的传输功能光放大器（210）的包括没有基本相等的增益光放大器，所述均衡装置，包括具有折射率基本上恒定包络线的波导布拉格光栅和一个啁啾率在寻求一种方法，以获得依赖于波长的传输函数那样变化。

10. 发明公开

EP1156607A3 Radiation power equalizer 有权
标题翻译：的辐射功率均衡器
公开(公告)号：EP1156607A3
公开(公告)日：2002-01-30
申请号：EP01304000.1
申请日：2001-05-01
申请人： MARCONI COMMUNICATIONS LIMITED
发明人： Claringburn, Harry Richard , Baker, Martin George , Sharratt, Michael
IPC分类号： H04B10/18 , H04J14/02
CPC分类号： H04J14/0221 , H04B10/25073 , H04J14/0204 , H04J14/0205 , H04J14/021 , H04J14/0213
摘要： The invention provides a radiation power equalizer for an optical communication system, the equalizer characterized in that it includes: (a) an optical demultiplexer (300) for partitioning information-bearing radiation received at the equalizer into one or more radiation components corresponding to wavelength division multiplexed communication channels of the system; (b) a liquid crystal cell array (310) for selectively transmitting or attenuating said one or more radiation components; (c) an optical multiplexer (330) for combining one or more of the radiation components transmitted or attenuated through the cell array (310) to provide combined radiation; (d) a transmitter erbium-doped fibre amplifier (70) coupled to a PIN diode detector array (120) for measuring radiation power present in said one or more of the radiation components included in the combined radiation and generating one or more corresponding component radiation power indicative signals; and (e) a control module (130) for receiving said one or more power indicative signals from the array (120) and controlling attenuation provided by the cell array (310) so that the radiation components included in the combined radiation are substantially of mutually similar radiation power. Action of the cell array (310) ensures that radiation components present in the combined radiation are mutually power matched, thereby assisting to alleviate power hogging by radiation components having relatively greater radiation power in devices such as erbium-doped fibre amplifiers (EDFAs).

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