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1. 发明申请

WO2013127467A1 CHROMATIC DISPERSION PROCESSING APPARATUS AND METHOD 审中-公开
标题翻译：色散处理装置及方法
公开(公告)号：WO2013127467A1
公开(公告)日：2013-09-06
申请号：PCT/EP2012/053622
申请日：2012-03-02
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , MAGRI, Roberto , CORSINI, Raffaele , MATARAZZO, Emma , PERACCHI, Andrea , CIARAMELLA, Ernesto
发明人： MAGRI, Roberto , CORSINI, Raffaele , MATARAZZO, Emma , PERACCHI, Andrea , CIARAMELLA, Ernesto
IPC分类号： H04B10/18
CPC分类号： H04B10/6161 , H04B10/07951 , H04B10/25133 , H04B10/6971 , H04L27/01
摘要： Chromatic dispersion (CD) processing apparatus (10) comprises an equalizer loop (12) comprising: a frequency domain equaliser (FDE) (14) arranged to receive samples (16) of an electrical representation of an optical communications signal having CD and to apply CD compensation to the samples, to form dispersion corrected samples (18) having a residual CD value; a time domain equaliser (20, 44) arranged to receive the corrected samples and to generate a representation of a channel linear transfer function of the signal from the corrected samples, to generate and transmit a monitoring signal (22) comprising said representation;optical performance monitoring apparatus (26) arranged to receive the monitoring signal and to estimate the residual CD value; and a processor (28) arranged to receive the estimated residual value and to compare it to a threshold value and to generate and transmit to the FDE an estimation signal (30) comprising the estimated value unless it is less than the threshold.
摘要翻译：色散（CD）处理装置（10）包括均衡器环路（12），包括：频域均衡器（FDE）（14），被布置为接收具有CD的光通信信号的电表示的采样（16）对样品进行CD补偿，以形成具有残留CD值的色散校正样品（18）; 布置成接收经校正的采样并产生来自校正样本的信号的信道线性传递函数的表示的时域均衡器（20,44），以产生和发送包括所述表示的监视信号（22）;光学性能监视装置（26），被布置成接收监视信号并估计残余CD值; 以及处理器（28），其被布置为接收所估计的残余值并将其与阈值进行比较，并且生成并向FDE发送包括估计值的估计信号（30），除非其小于阈值。

2. 发明申请

WO2012072131A1 ERROR ESTIMATION IN OPTICAL COMMUNICATION NETWORKS 审中-公开
标题翻译：光通信网络的错误估计
公开(公告)号：WO2012072131A1
公开(公告)日：2012-06-07
申请号：PCT/EP2010/068651
申请日：2010-12-01
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CIARAMELLA, Ernesto , PERACCHI, Andrea , PRATI, Giancarlo
发明人： CIARAMELLA, Ernesto , PERACCHI, Andrea , PRATI, Giancarlo
IPC分类号： H04L12/26
CPC分类号： H04L1/203 , H04L43/0823 , H04L43/16
摘要： A method of monitoring error performance of an optical communications signal at a node (20) of an optical communications network (10) comprises converting (151) the optical communications signal to an electrical signal and sampling (152) the electrical signal to obtain digital signal samples. The method processes (153, 155) the signal samples to determine a measure of bit error performance, by determining a statistical distribution of the signal sample values and deriving the measure of bit error performance from the statistical distribution of signal sample values. The method can find a minima value of the statistical distribution and scale the minima value by at least one scaling parameter. The step of determining a statistical distribution of the signal sample values can comprise obtaining a histogram of amplitude values of the signal samples. The statistical distribution of the signal sample values can be a probability density function of the signal samples.
摘要翻译：监视光通信网络（10）的节点（20）处的光通信信号的错误性能的方法包括将光通信信号转换（151）到电信号并采样（152）电信号以获得数字信号样本。该方法通过确定信号样本值的统计分布并从信号样本值的统计分布中导出比特误差性能的测量来处理（153,155）信号样本以确定比特误差性能的度量。该方法可以找到统计分布的最小值，并通过至少一个缩放参数来缩放最小值。确定信号样本值的统计分布的步骤可以包括获得信号样本的振幅值的直方图。信号样本值的统计分布可以是信号样本的概率密度函数。

3. 发明申请

WO2012034604A1 PASSIVE OPTICAL NETWORKS 审中-公开
标题翻译：被动光网络
公开(公告)号：WO2012034604A1
公开(公告)日：2012-03-22
申请号：PCT/EP2010/067826
申请日：2010-11-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , PRESI, Marco , CIARAMELLA, Ernesto
发明人： PRESI, Marco , CIARAMELLA, Ernesto
IPC分类号： H04B10/18 , H04B10/26 , H04B10/20 , H04J14/02
CPC分类号： H04J14/028 , H04B10/2572 , H04B10/2587 , H04B10/272 , H04J14/02 , H04J14/0282 , H04J14/06 , H04J2014/0253
摘要： Optical transmitter apparatus 10 comprising a reflective optical amplifier 12, a driver 14, an optical splitter 16, polarisation compensation apparatus 18 and an optical router 20. The reflective optical amplifier is arranged to receive an optical seed signal. The driver is arranged to generate a drive signal arranged to cause the reflective optical amplifier to amplify the optical seed signal to form an optical signal. The optical splitter is arranged to receive the optical signal and to split off a part of the optical signal to form a further optical signal. The polarisation compensation apparatus is arranged to receive the further optical signal and to rotate a polarisation of the further optical signal by a pre-determined amount, to form a further optical seed signal. The optical router is arranged to receive the further optical seed signal and to direct the further optical seed signal to the reflective optical amplifier for amplification thereby.
摘要翻译：光发射机装置10包括反射光放大器12，驱动器14，光分路器16，偏振补偿装置18和光路由器20.反射光放大器被布置成接收光种子信号。驱动器被布置成产生驱动信号，该驱动信号被布置成使反射光放大器放大光学种子信号以形成光信号。光分路器被布置成接收光信号并且分离光信号的一部分以形成另外的光信号。偏振补偿装置被布置成接收另外的光信号并使另外的光信号的极化旋转预定量，以形成另外的光种子信号。光路由器被布置成接收另外的光学种子信号并且将另外的光学种子信号引导到反射光学放大器以进行放大。

4. 发明申请

WO2011134536A1 PASSIVE OPTICAL NETWORKS 审中-公开
标题翻译：被动光网络
公开(公告)号：WO2011134536A1
公开(公告)日：2011-11-03
申请号：PCT/EP2010/056456
申请日：2010-05-11
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio , BANCHI, Luca
发明人： PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio , BANCHI, Luca
IPC分类号： H04B10/26 , G02F1/015 , H04L27/20
CPC分类号： H04L27/2096 , H04B10/2587
摘要： An optical network unit (10) comprising a reflective semi-conductor optical amplifier (R-SOA) (12) and a driver (14). The R-SOA has a large optical confinement factor and is arranged to receive a portion of a downstream optical signal having a signal wavelength and a signal power. The driver is arranged to generate a drive signal (16) to drive the R-SOA. The drive signal is arranged to cause the R-SOA to operate in saturation at the signal power. The drive signal is further arranged to cause the R-SOA to apply a return-to-zero line code to said portion of the downstream optical signal to form an upstream optical signal at the signal wavelength. The drive signal is further arranged to cause the R-SOA to apply a phase modulation to the upstream optical signal.
摘要翻译：一种包括反射半导体光放大器（R-SOA）（12）和驱动器（14）的光网络单元（10）。 R-SOA具有大的光限制因子，并且被布置为接收具有信号波长和信号功率的下游光信号的一部分。驱动器被安排成产生驱动信号（16）来驱动R-SOA。驱动信号被布置成使得R-SOA以信号功率工作在饱和状态。驱动信号还被布置成使得R-SOA将下行光信号的所述部分应用归零线路码，以在信号波长处形成上行光信号。驱动信号还被布置成使R-SOA对上游光信号施加相位调制。

5. 发明申请

WO2013017153A1 OPTICAL ACCESS NETWORK 审中-公开
标题翻译：光接入网络
公开(公告)号：WO2013017153A1
公开(公告)日：2013-02-07
申请号：PCT/EP2011/063163
申请日：2011-07-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CIARAMELLA, Ernesto , PRESI, Marco
发明人： CIARAMELLA, Ernesto , PRESI, Marco
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04B10/2587 , H04B10/272 , H04B10/532 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/06 , H04J2014/0253 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0022
摘要： An optical access network (5) comprises an optical network unit (20) having a first port (21) for connecting to a first optical link (31), a second port (22) for connecting to a second optical link (32) and an optical source (23). The optical source (23) is arranged to generate a first optical signal, to transmit the first optical signal via the first port (21), to receive an optical seed signal via the first port (21) and to amplify the optical seed signal. The optical seed signal has a narrower bandwidth compared to the first optical signal. A modulator (25) is arranged to modulate the amplified optical seed signal with upstream data to form an upstream optical signal and to transmit the upstream optical signal via the second port (22). A polarisation modifier (50) can modify polarisation of the first optical signal.
摘要翻译：光接入网络（5）包括光网络单元（20），其具有用于连接到第一光链路（31）的第一端口（21），用于连接到第二光链路（32）的第二端口（22）光源（23）。光源（23）被布置成产生第一光信号，以经由第一端口（21）传输第一光信号，以经由第一端口（21）接收光种子信号并放大光学种子信号。与第一光信号相比，光学种子信号具有较窄的带宽。调制器（25）被布置成通过上行数据来调制放大的光学种子信号，以形成上行光信号，并且经由第二端口（22）传输上游光信号。偏振修正器（50）可以修改第一光信号的偏振。

6. 发明申请

WO2012041403A1 FREE SPACE OPTICAL COMMUNICATIONS LINK NODE, NETWORK AND METHOD OF TRANSMITTING TRAFFIC 审中-公开
标题翻译：免费空间光通信链路节点，网络和传输交通方式
公开(公告)号：WO2012041403A1
公开(公告)日：2012-04-05
申请号：PCT/EP2010/067040
申请日：2010-11-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CIARAMELLA, Ernesto , D'ERRICO, Antonio
发明人： CIARAMELLA, Ernesto , D'ERRICO, Antonio
IPC分类号： H04B10/10 , H04J14/02
CPC分类号： H04B10/11 , H04B10/1125 , H04J14/0221
摘要： A free space optical communications link node 10 comprising transmitter apparatus 12 comprising a first optical transmitter 14, arranged to transmit high priority traffic on a first upstream optical signal having a first wavelength and at a first optical signal power, and a second optical transmitter 16 arranged to transmit low priority traffic on a second upstream optical signal having a second wavelength, different to the first wavelength, and at a second optical signal power. The node 10 further comprises receiver apparatus 18 comprising a first optical amplifier 20 arranged to receive and amplify a first downstream optical signal having a third wavelength and carrying high priority traffic and a second downstream optical signal having a fourth wavelength, different to the third wavelength, and carrying low priority traffic. The node 10 further comprises traffic handling control apparatus 22 comprises a power monitor 24 arranged to monitor an optical signal power of the first downstream optical signal and a controller 26 arranged to generate and transmit a controlsignal28 if said optical signal power is below a firstthreshold value. The control signal is arranged to cause the second optical signal power to have a value which is unsuitable for transmission.
摘要翻译：一种自由空间光通信链路节点10，包括：发射机装置12，包括第一光发射机14，被配置为在具有第一波长和第一光信号功率的第一上行光信号上传送高优先级业务;以及第二光发射机16，在具有与第一波长不同的第二波长和第二光信号功率的第二上行光信号上传送低优先级业务。节点10还包括接收机装置18，包括：第一光放大器20，被配置为接收和放大具有第三波长并承载高优先级业务的第一下行光信号，以及具有不同于第三波长的第四波长的第二下行光信号，并承载低优先级流量。节点10还包括业务处理控制设备22，其包括布置成监视第一下行光信号的光信号功率的功率监控器24，以及如果所述光信号功率低于第一阈值则被配置为产生和发送控制信号28的控制器26。控制信号被布置成使得第二光信号功率具有不适于传输的值。

7. 发明申请

WO2013007277A1 OPTICAL ACCESS NETWORK 审中-公开
标题翻译：光接入网络
公开(公告)号：WO2013007277A1
公开(公告)日：2013-01-17
申请号：PCT/EP2011/061621
申请日：2011-07-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAVALIERE, Fabio , GIORGI, Luca , CIARAMELLA, Ernesto , PRESI, Marco
发明人： CAVALIERE, Fabio , GIORGI, Luca , CIARAMELLA, Ernesto , PRESI, Marco
IPC分类号： H04J14/02 , H04B10/26
CPC分类号： H04Q11/0067 , H04B10/272 , H04J14/02 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J2014/0253 , H04L27/0008 , H04Q2011/0016 , H04Q2011/0086
摘要： An optical access network (5) comprises an optical line terminal (10) and an optical network unit (20) having a transmitter (24). An optical path (11, 12, 14, 15) connects an output of the transmitter (24) of the optical network unit (20) to the optical line terminal (10). The transmitter (24) of the optical network unit (20) is arranged to transmit an upstream signal (40) with an amplitude modulation format having at least one level transition per data bit period for at least one of the logical bits and a frequency modulation occurring with the level transition. An optical filter (16, 18, 31, 34) is positioned in the optical path. A central wavelength of a response (51) of the optical filter (16, 18, 31, 34) has an offset (53) with respect to a wavelength (41) of the upstream signal (40). The wavelength (41) of the upstream signal (40) is located on a slope (54) of the response (51) of the optical filter.
摘要翻译：光接入网络（5）包括光线路终端（10）和具有发射机（24）的光网络单元（20）。光路（11,12,14,15）将光网络单元（20）的发射机（24）的输出与光线路终端（10）连接起来。光网络单元（20）的发射机（24）被布置成以对于至少一个逻辑比特和频率调制的每个数据比特周期具有至少一个电平转换的幅度调制格式来发送上行信号（40）发生与水平转换。光学滤光器（16,18,31,34）位于光路中。滤光器（16,18,31,34）的响应（51）的中心波长相对于上游信号（40）的波长（41）具有偏移（53）。上游信号（40）的波长（41）位于滤光器的响应（51）的斜率（54）上。

8. 发明申请

WO2009059635A1 ALLOCATION OF TRANSMISSION POWER IN AN OPTICAL COMMUNICATION SYSTEM 审中-公开
标题翻译：光通信系统中传输功率的分配
公开(公告)号：WO2009059635A1
公开(公告)日：2009-05-14
申请号：PCT/EP2007/061930
申请日：2007-11-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , CIARAMELLA, Ernesto , CAVALIERE, Fabio , GAIMARI, Giancarlo , MATARAZZO, Emma , BRUGIONI, Stefano , GIORGI, Luca
发明人： CIARAMELLA, Ernesto , CAVALIERE, Fabio , GAIMARI, Giancarlo , MATARAZZO, Emma , BRUGIONI, Stefano , GIORGI, Luca
IPC分类号： H04J14/02
CPC分类号： H04B17/0042 , H04B17/309 , H04J14/0213 , H04J14/0221 , H04J14/0257 , H04J14/0267 , H04J14/0271 , H04J14/0275 , H04W52/322 , H04W52/327
摘要： Methods and apparatus for determining transmission power of a plurality of optical channels for transmission of the channels along respective paths obtained through an optical transmission system. Information is obtained indicative of the path of each channel through the optical transmission system, and each channel allocated to a group of channels in dependence upon the obtained information. A quality metric is determined for each group of channel, and a total transmission power for each group determined in dependence upon the determined quality metric.
摘要翻译：用于确定用于通过光传输系统获得的各个路径的信道传输的多个光信道的传输功率的方法和装置。获得指示通过光传输系统的每个信道的路径的信息，以及根据获得的信息分配给一组信道的每个信道。确定每个通道组的质量度量，以及根据确定的质量度量确定的每个组的总发射功率。

9. 发明申请

WO2015144224A1 OPTICAL SOURCE, COMMUNICATIONS NETWORK OPTICAL APPARATUS AND METHOD OF PROVIDING AN OPTICAL SIGNAL 审中-公开
标题翻译：光源，通信网络光学装置和提供光信号的方法
公开(公告)号：WO2015144224A1
公开(公告)日：2015-10-01
申请号：PCT/EP2014/056151
申请日：2014-03-27
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： TESTA, Francesco , GIORGI, Luca , D'ERRICO, Antonio , HUANG, Wei-Ping , CIARAMELLA, Ernesto , PRESI, Marco
IPC分类号： H04B10/2569 , H04B10/50
CPC分类号： H04B10/2569 , H04B10/50 , H04B10/503
摘要： An optical source (10) comprising: a first laser (12) arranged to generate a first optical signal (14) having a first state of polarisation and a first optical frequency; a second laser (16) arranged to generate a second optical signal (18, 48, 78) having a second state of polarisation, substantially orthogonal to the first state of polarisation, and having a second optical frequency, different to the first optical frequency by a preselected frequency difference, Δν; a polarisation beam coupler (20) arranged to combine the first optical signal and the second optical signal into a composite optical signal comprising both the first optical signal and the second optical signal having said substantially orthogonal states of polarisation; and an output (22) arranged to output the composite optical signal (24).
摘要翻译：一种光源（10），包括：第一激光器（12），其布置成产生具有第一偏振状态和第一光频率的第一光信号（14）第二激光器（16），被布置成产生具有第二极化状态的第二光学信号（18,48,78），所述第二光学信号基本上与所述第一偏振态正交，并且具有与所述第一光学频率不同的第二光学频率，预选频率差Δν; 偏振光束耦合器（20），被布置为将第一光信号和第二光信号组合成复合光信号，其包括具有所述基本正交偏振状态的第一光信号和第二光信号; 和输出（22），输出复合光信号（24）。

10. 发明申请

WO2011057679A1 ALL-OPTICAL PHASE-MODULATED DATA SIGNAL REGENERATION 审中-公开
标题翻译：全光相位调制数据信号再生
公开(公告)号：WO2011057679A1
公开(公告)日：2011-05-19
申请号：PCT/EP2009/066827
申请日：2009-12-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , CIARAMELLA, Ernesto
发明人： CIARAMELLA, Ernesto
IPC分类号： H04B10/17
CPC分类号： H04B10/299
摘要： All-optical phase-modulated data signal regenerator apparatus (10) comprising an optical input (12), an optical signal converter (16), an optical carrier signal source (18), optical signal forming apparatus (20) and an optical output (14). The input (12) is arranged to receive a phase-modulated optical data signal. The signal converter (16) is arranged to receive the data signal and to convert phase modulation of the data signal into a corresponding intensity modulation of an intermediate optical signal. The carrier signal source (18) provides an optical carrier signal. The signal forming apparatus (20) is arranged to receive the carrier signal and the intermediate optical signal, and comprises a first element arranged to receive the intermediate optical signal and to apply a transfer function for effecting reshaping and resizing, and a second element for effecting transfer of an intensity modulation of the intermediate optical signal into a phase modulation on the optical carrier signal to form a regenerated phase-modulated optical data signal. The output (14) is arranged to output the regenerated optical data signal.
摘要翻译：全光相位调制数据信号再生装置（10）包括光输入（12），光信号转换器（16），光载波信号源（18），光信号形成装置（20）和光输出 14）。输入（12）被布置成接收相位调制的光数据信号。信号转换器（16）被布置为接收数据信号并将数据信号的相位调制转换成中间光信号的相应强度调制。载波信号源（18）提供光载波信号。信号形成装置（20）被布置为接收载波信号和中间光信号，并且包括布置成接收中间光信号并施加用于进行重新整形和调整大小的传递函数的第一元件，以及用于实现将中间光信号的强度调制传输到光载波信号上的相位调制，以形成再生的相位调制光数据信号。输出（14）被布置成输出再生的光数据信号。

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