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1. 发明申请

WO2011003481A1 IMPROVEMENTS IN REFLECTIVE OPTICAL NETWORKS 审中-公开
标题翻译：反射光网络的改进
公开(公告)号：WO2011003481A1
公开(公告)日：2011-01-13
申请号：PCT/EP2009/059480
申请日：2009-07-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , PRESI, Marco , CIARAMELLA, Ernesto , CHIUCHIARELLI, Andrea , PROIETTII, Roberto , CONTESTABILE, Giampiero , CHOUDHURY, Pallab , GIORGI, Luca , CAVALIERE, Fabio
发明人： PRESI, Marco , CIARAMELLA, Ernesto , CHIUCHIARELLI, Andrea , PROIETTII, Roberto , CONTESTABILE, Giampiero , CHOUDHURY, Pallab , GIORGI, Luca , CAVALIERE, Fabio
IPC分类号： H04B10/26
CPC分类号： H04B10/2587 , H04J14/0282 , H04J2014/0253
摘要： A reflective optical network (10) comprises an optical network unit (14) and an optical receiver (22). The optical network unit (14) comprises a reflective optical modulator (16) arranged to receive a seed optical signal, and a transmitter controller (18) arranged to receive a data signal (20) and to control the modulator (16) to apply the data signal (20) to the seed optical signal, to form an optical data signal. The transmitter controller (18) is arranged to process the data signal (20) to substantially prevent the optical data signal comprising spectral components at frequencies lower than a cut-off frequency, being the frequency at which a power spectral density of said optical data signal is lower than a peak power spectral density of said optical signal by a cut-off power value. The optical receiver (22) comprises an electrical domain high pass filter (26) having a cut-off frequency higher than a linewidth of the seed optical signal.
摘要翻译：反射光网络（10）包括光网络单元（14）和光接收器（22）。光网络单元（14）包括布置成接收种子光信号的反射光调制器（16）和布置成接收数据信号（20）并且控制调制器（16）应用数据信号（20）到种子光信号，以形成光数据信号。发射机控制器（18）被布置成处理数据信号（20）以基本上防止包括频率低于截止频率的频谱分量的光数据信号，其是所述光数据信号的功率谱密度通过截止功率值低于所述光信号的峰值功率谱密度。光接收器（22）包括具有高于种子光信号的线宽的截止频率的电域高通滤波器（26）。

2. 发明申请

WO2009056365A1 IMPROVEMENTS IN OR RELATING TO OPTICAL NETWORKS 审中-公开
标题翻译：光网络的改进或相关
公开(公告)号：WO2009056365A1
公开(公告)日：2009-05-07
申请号：PCT/EP2008/053882
申请日：2008-04-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , PRESI, Marco , CONTESTABILE, Giampiero , CIARAMELLA, Ernesto , CAVALIERE, Fabio , PROIETTII, Roberto , D'ERRICO, Antonio , GHIGGINO, Pierpaolo
发明人： PRESI, Marco , CONTESTABILE, Giampiero , CIARAMELLA, Ernesto , CAVALIERE, Fabio , PROIETTII, Roberto , D'ERRICO, Antonio , GHIGGINO, Pierpaolo
IPC分类号： H04B10/26
CPC分类号： H04B10/2587 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0282 , H04J14/0298 , H04J2014/0253
摘要： The invention relates to improvements in or relating to optical networks. Methods and apparatus are disclosed for providing communications services to at least one user. Transmission of an optical signal in the downstream direction is described comprising at least one Wavelength Division Multiplexing channel such that at least one of the channels is an unmodulated channel. The unmodulated channel is arranged to transmit user data from the at least one user in the upstream direction.
摘要翻译：本发明涉及光网络的改进或涉及光网络。公开了用于向至少一个用户提供通信服务的方法和装置。描述了沿下游方向的光信号的传输，其包括至少一个波分复用信道，使得至少一个信道是未调制的信道。未调制信道被布置成在上游方向上从至少一个用户传送用户数据。

3. 发明申请

WO2008145464A1 AN OPTICAL PON NETWORK USING PASSIVE DPSK DEMODULATION 审中-公开
标题翻译：使用被动DPSK解调的光网络网络
公开(公告)号：WO2008145464A1
公开(公告)日：2008-12-04
申请号：PCT/EP2008/055005
申请日：2008-04-24
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , CALABRETTA, Nicola , PRESI, Marco , CONTESTABILE, Giampiero , GHIGGINO, Pierpaolo , CIARAMELLA, Ernesto , CAVALIERE, Fabio , PROIETTII, Roberto
发明人： CALABRETTA, Nicola , PRESI, Marco , CONTESTABILE, Giampiero , GHIGGINO, Pierpaolo , CIARAMELLA, Ernesto , CAVALIERE, Fabio , PROIETTII, Roberto
IPC分类号： H04J14/02 , H04B10/158
CPC分类号： H04J14/0226 , H04B10/677 , H04J14/02 , H04J14/0246 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04J2014/0253 , H04Q11/0067 , H04Q2011/0086 , H04Q2011/009
摘要： An optical PON network comprises a central office which generates N DPSK modulated optical signals, where N is an integer greater than 1, an optical coupling which connects the N signals to at least one optical fibre, a passive distribution node located remotely from the central office which has at least one input port that is coupled to the fibre and a plurality of output ports, the node being arranged to transmit a first wavelength of the N signals to at least one of its output ports, and at least one optical network unit connected through a respective optical fibre to the first output port of the passive distribution node. The passive distribution node comprises an arrayed waveguide grating which provides a passive optical connection between its input port and the first output port and which for that connection functions as a bandpass filter having a profile and bandwidth selected such that the DPSK optical signal passed to the input node is converted to an intensity modulated signal at the output port.
摘要翻译：光PON网络包括产生N个DPSK调制光信号的中心局，其中N是大于1的整数，将N个信号连接到至少一个光纤的光耦合器，远离中心局的被动分配节点其具有耦合到光纤的至少一个输入端口和多个输出端口，所述节点被布置成将N个信号的第一波长发射到其输出端口中的至少一个，并且至少一个光网络单元连接通过相应的光纤到被动分配节点的第一输出端口。无源分布节点包括阵列波导光栅，其在其输入端口和第一输出端口之间提供无源光学连接，并且对于该连接起到带通滤波器的作用，该带通滤波器具有被选择的轮廓和带宽，使得DPSK光信号传递到输入端节点在输出端口转换为强度调制信号。

4. 发明申请

WO2011032597A1 PASSIVE OPTICAL NETWORK 审中-公开
标题翻译：被动光网络
公开(公告)号：WO2011032597A1
公开(公告)日：2011-03-24
申请号：PCT/EP2009/062141
申请日：2009-09-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio
发明人： PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0067 , H04B10/2587 , H04B10/516 , H04B2210/517 , H04J14/0282 , H04J2014/0253 , H04Q2011/0086 , H04Q2011/009
摘要： A distribution node (10) of a passive optical network (PON) comprises a first port (11) for receiving a first optical continuous envelope modulated downstream data signal at a first wavelength (λ c ) from a first optical line termination unit (OLTl) and a second port (12) for receiving a second optical continuous envelope modulated downstream data signal at a second wavelength (λ L ) from a second optical line termination unit (OLT2). A first converter (FBG-I) performs continuous envelope modulation-to-intensity modulation conversion of the first optical downstream data signal and forwards the converted first optical downstream data signal (λ c ) to the first group of optical network units (ONU 1... N ). A second converter (FBG-2) performs continuous envelope modulation-to-intensity modulation conversion of the second optical downstream data signal and forwards the converted second optical downstream data signal (λ L ) to the second group of optical network units (ONU N+I...2N ). The distribution node (10) forwards a seed signal at the first wavelength (λc) to the second group of optical network units (ONU N+I...2N ) and forwards a seed signal at the second wavelength (λ L ) to the first group of optical network units (ONU 1... N ).
摘要翻译：无源光网络（PON）的分发节点（10）包括用于从第一光线路终端单元（OLT1）接收第一波长（λc）的第一光学连续包络调制下行数据信号的第一端口（11）以及用于从第二光线路终端单元（OLT2）接收第二波长（λL）的第二光学连续包络调制下行数据信号的第二端口（12）。第一转换器（FBG-I）对第一光下行数据信号执行连续的包络调制到强度调制转换，并将转换后的第一光下行数据信号（ωc）转发到第一组光网络单元（ONU1 .. 。N）。第二转换器（FBG-2）对第二光学下行数据信号执行连续包络调制强度调制转换，并将转换的第二光下行数据信号（ΔL）转发到第二组光网络单元（ONUN + I ... 2N）。分配节点（10）将第一波长（λc）的种子信号转发到第二组光网络单元（ONUN + I ... 2N），并将第二波长（λL）的种子信号转发到第一组光网络单元（ONU1 ... N）。

5. 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。

6. 发明申请

WO2010020295A1 IMPROVEMENTS IN OR RELATING TO MODULATION IN AN OPTICAL NETWORK 审中-公开
标题翻译：改进或相关于光网络调制
公开(公告)号：WO2010020295A1
公开(公告)日：2010-02-25
申请号：PCT/EP2008/063367
申请日：2008-10-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio
发明人： PRESI, Marco , CIARAMELLA, Ernesto , CAVALIERE, Fabio
IPC分类号： H04B10/26 , H04B10/12 , H04J14/02
CPC分类号： H04B10/2587 , H04B10/25759 , H04J14/0282
摘要： The invention relates to improvements in or relating to modulation in an Optical Network, and to an apparatus, a method and a communications network for modulation in an Optical Network. An apparatus is arranged to receive a modulated optical signal comprising a carrier wavelength and first data. The apparatus is arranged to substantially erase the first data from the optical signal by performing an inversion operation on the modulated optical signal. The apparatus is arranged to receive second data and to modulate the carrier wavelength with the second data for onward transmission of the second data. The inversion operation comprises applying a signal comprising an inverse of the first data to at least a portion of the modulated optical signal. The signal may further comprise the second data such that the modulation of the carrier wavelength and erasure of the first data is performed in a single operation.
摘要翻译：本发明涉及在光网络中的调制方面的改进或涉及光网络中的调制，以及用于光网络中的调制的装置，方法和通信网络。一种装置被配置为接收包括载波波长和第一数据的调制光信号。该装置被布置为通过对调制的光信号执行反转操作来从光信号基本上擦除第一数据。该装置被设置为接收第二数据并且利用第二数据来调制载波波长以用于第二数据的向前传输。反转操作包括将包括第一数据的逆的信号应用于调制光信号的至少一部分。该信号还可以包括第二数据，使得在单个操作中执行载波波长的调制和第一数据的擦除。

7. 发明申请

WO2011066858A1 IMPROVEMENTS IN OPTICAL NETWORKS 审中-公开
标题翻译：光网络的改进
公开(公告)号：WO2011066858A1
公开(公告)日：2011-06-09
申请号：PCT/EP2009/066310
申请日：2009-12-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , CAVALIERE, Fabio , GIORGI, Luca , GROSSO, Renato , CIARAMELLA, Ernesto
发明人： CAVALIERE, Fabio , GIORGI, Luca , GROSSO, Renato , CIARAMELLA, Ernesto
IPC分类号： H04J14/02 , H04B10/08
CPC分类号： H04J14/0227 , H04B10/071 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0257 , H04J14/0265 , H04J14/0282
摘要： An optical network (1) comprising an optical network element (10) comprising a first optical transmitter (14), a first controller (16), a first optical receiver and a second optical receiver and a second optical network element (12). There is provided a transmission path (30) between said first optical network element and said second optical network element. Said first optical transmitter is arranged to generate and transmit a first optical signal. Said first controller is arranged to control said first optical transmitter to generate and transmit said first optical signal at a wavelength selected from a predetermined plurality of wavelengths. Said first optical receiver is arranged to detect a backscatter portion of said first optical signal returned to said first optical network element along said transmission path by distributing scattering.
摘要翻译：一种包括光网络元件（10）的光网络（1），包括第一光发射器（14），第一控制器（16），第一光接收器和第二光接收器以及第二光网络元件（12）。在所述第一光网络元件和所述第二光网络元件之间提供传输路径（30）。所述第一光发射器被布置成产生和发射第一光信号。所述第一控制器被布置为控制所述第一光发射机以从预定的多个波长选择的波长产生和发射所述第一光信号。所述第一光接收器被布置为通过分布散射来检测沿着所述传输路径返回到所述第一光网络元件的所述第一光信号的后向散射部分。

8. 发明申请

WO2008078147A1 SIGNAL PROCESSOR FOR COMPENSATING FOR OPTICAL FIBER CHROMATIC DISPERSION 审中-公开
标题翻译：用于补偿光纤色散的信号处理器
公开(公告)号：WO2008078147A1
公开(公告)日：2008-07-03
申请号：PCT/IB2006/004207
申请日：2006-12-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , GIORGI, Luca , CIARAMELLA, Ernesto , CAVALIERE, Fabio , FORESTIERI, Enrico , FORYSIAK, Wladek
发明人： GIORGI, Luca , CIARAMELLA, Ernesto , CAVALIERE, Fabio , FORESTIERI, Enrico , FORYSIAK, Wladek
IPC分类号： H04B10/18
CPC分类号： H04B10/505 , H04B10/25137 , H04B10/5055
摘要： A signal processor for compenstaing for optical fibre chromatic dispersion comprising encoding means (5) for encoding a source signal (2) received from a data source (6), splitting means (8) to separate the encoded signal (7) from the encoding means (5) into an in-phase component (10) and an in-quadrature component (11), a first filter means (12) adapted to receive the in-phase component (10) and a second filter means (13) adapted to receive the in-quadrature component (11), the first filter means (12) and second filter means (13) being adapted to filter the in-phase and in-quadrature components respectively. The outputs (14, 15) from the filter means form the input to the optical modulator means (3).
摘要翻译：一种用于光纤色散补偿的信号处理器，包括用于对从数据源（6）接收的源信号（2）进行编码的编码装置（5），将编码信号（7）与编码装置分离的分离装置（5）转换成同相分量（10）和正交分量（11），适于接收所述同相分量（10）的第一滤波器装置（12）和适于接收正交分量（11），第一滤波器装置（12）和第二滤波器装置（13）适于分别滤波同相和正交分量。来自滤波器装置的输出（14,15）形成到光调制器装置（3）的输入。

9. 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。

10. 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。

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