专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2006058874A1 MULTIPLEXER WITH OPTICAL ADD/DROP 审中-公开
标题翻译：具有光学添加/删除功能的多路复用器
公开(公告)号：WO2006058874A1
公开(公告)日：2006-06-08
申请号：PCT/EP2005/056272
申请日：2005-11-28
申请人： MARCONI COMMUNICATIONS SPA , PORZI, Claudio , BOGONI, Antonella , POTI, Luca
发明人： PORZI, Claudio , BOGONI, Antonella , POTI, Luca
IPC分类号： H04J14/08
CPC分类号： H04J14/083 , H04J14/0223
摘要： A method of extracting a predetermined channel from an OTDM signal includes the steps of combining at the inlet of an SOA the OTDM signal and an impulsive signal with impulses temporally synchronized with the channel to be extracted to produce in the SOA FWM, XGM and XPM effects which shift to a length c the channel chosen for extraction with c outside the length d of the OTDM signal with the other channels outlet from the SOA and filtering the SOA outlet to extract components with c d that represent respectively the desired channel and the cleaned OTDM signal. A multiplexer in accordance with the method includes an inlet (14) of an OTDM signal sent to an SOA (24) together with an appropriate impulsive signal. The SOA outlet is filtered by filters (28, 29) to obtain the signal of the extracted channel (16) and the cleaned OTDM signal (15).
摘要翻译：从OTDM信号提取预定信道的方法包括以下步骤：在SOA的入口处组合OTDM信号和脉冲信号，其脉冲与待提取的信道在时间上同步以产生在SOA FWM，XGM和XPM效应其转移到选择用于从OTDM信号的长度d之外的c提取的信道，并且从SOA出来的其他信道出口，并过滤SOA出口，以分别代表期望的信道和清除的OTDM信号的cd来提取分量。根据该方法的多路复用器包括与适当的脉冲信号一起发送到SOA（24）的OTDM信号的入口（14）。 SOA出口由滤波器（28,29）滤波，以获得提取的信道（16）和清除的OTDM信号（15）的信号。

2. 发明申请

WO2006008321A1 CHANNEL POWER PRE-EMPHASIS IN WAVELENGTH DIVISION MULTIPLEX OPTICAL COMMUNICATION SYSTEMS 审中-公开
标题翻译：波长级多通道光通信系统中的信道功率预测
公开(公告)号：WO2006008321A1
公开(公告)日：2006-01-26
申请号：PCT/EP2005/053592
申请日：2005-07-22
申请人： MARCONI COMMUNICATIONS SPA , CIARAMELLA, Ernesto , CAVALIERE, Fabio , GIORGI, Luca
发明人： CIARAMELLA, Ernesto , CAVALIERE, Fabio , GIORGI, Luca
IPC分类号： H04J14/02
CPC分类号： H04J14/0221
摘要： An iterative method for power pre-emphasis of N optical channels in a Wavelengt h Division Multiplex (WDM) signal in an optical communication systems in accordance with which representative Xi characterist ics are defined for the channels with among the characteristics there being included at least one characteristic that is a function of the Bit Error Rate (BER). The method including the iterative phases of running through the WDM signal channels and appraising for each channel said characteristics for the channel and for the channels adjacent thereto; comparing said channel characteristics with the homologous characteristics of the adjacent channels and, based on the results of the comparisons, selecting a predetermined action to be performed on the power transmitted on the ith channel; for all the channels, performing on the power of each the corresponding selected action; calculating a metric quality function of all the channels with the new powers changed with the selected actions and repeating the previous iterative phases from the beginning until the quality improvement is greater than a predetermined figure and/or a predetermined maximum number of iterations is reached.
摘要翻译：在光通信系统中的Wavelengt h Division Multiplex（WDM）信号中的N个光信道的功率预加重的迭代方法，根据哪个代表性的Xi特征被定义用于具有特征的信道，其中包括至少一个特征是位误码率（BER）的函数。该方法包括遍历WDM信号信道的迭代阶段，并针对每个信道评估用于信道和与其相邻的信道的所述特征; 将所述信道特性与相邻信道的同源特性进行比较，并且基于比较结果，选择要在第i个信道上发送的功率执行的预定动作; 对于所有的通道，执行每个相应的所选动作的动力; 用所选择的动作来计算新功率的所有信道的度量质量函数，并从开始重复前一个迭代阶段，直到质量改进大于预定数字和/或达到预定的最大迭代次数。

3. 发明申请

WO2005086390A1 OPTICAL MODULATION CONVERTER AND METHOD FOR CONVERTING THE MODULATION FORMAT OF AN OPTICAL SIGNAL 审中-公开
标题翻译：光学调制转换器和转换光信号调制格式的方法
公开(公告)号：WO2005086390A1
公开(公告)日：2005-09-15
申请号：PCT/EP2005/051028
申请日：2005-03-08
申请人： MARCONI COMMUNICATIONS SPA , D'ERRICO, Antonio , CIARAMELLA, Ernesto
发明人： D'ERRICO, Antonio , CIARAMELLA, Ernesto
IPC分类号： H04B10/158
CPC分类号： H04B10/69 , H04B10/676
摘要： An optical modulation converter (10) for converting the modulation format of an optical input signal is characterized by a birefringent medium (14), polarization maintaining fibre, with a selected differential group delay between its two main axes of symmetry through which the optical input signal is passed to be separated into two optical components each travelling along one of the main axes of the medium at a different group velocity to thereby convert the modulation format of the input signal. By appropriate selection of the differential group delay imparted by the medium relative to the bit rate of the input signal and by appropriately presenting the input signal relative to the main axes of the medium conversion between different modulation formats can be achieved. These include direct conversion from optical DPSK (Differential Phase Shift Keying) to POLSK (POLarization Shift Keying), DPSK to IM (Intensity-Modulated) through an intermediated conversion to POLSK, POLSK to IMDD (Intensity Modulation Direct Detection), and IM to POLSK.
摘要翻译：用于转换光输入信号的调制格式的光调制转换器（10）的特征在于双折射介质（14），保偏光纤，在其两个主对称轴之间具有选择的差分组延迟，光输入信号通过以分离成两个光学部件，每个光学部件以不同的组速度沿着介质的主轴线行进，从而转换输入信号的调制格式。可以通过适当地选择介质相对于输入信号的比特率而赋予的差分组延迟，并且可以通过适当地呈现相对于不同调制格式之间的介质转换的主轴的输入信号。这些包括通过中间转换到POLSK，POLSK到IMDD（强度调制直接检测）和IM到POLSK的从光学DPSK（差分相移键控）到POLSK（偏振移位键控），DPSK到IM（强度调制）的直接转换。

4. 发明申请

WO2005040712A2 COMMUNICATIONS SYSTEM 审中-公开
标题翻译：通信系统
公开(公告)号：WO2005040712A2
公开(公告)日：2005-05-06
申请号：PCT/EP2004/052420
申请日：2004-10-04
申请人： MARCONI COMMUNICATIONS SPA , CAVIGLIA, Diego , FIASCHI, Giovanni , LAZZERI, Francesco
发明人： CAVIGLIA, Diego , FIASCHI, Giovanni , LAZZERI, Francesco
IPC分类号： F41H5/04
CPC分类号： H04J3/085 , H04L45/22 , H04L45/28
摘要： A data communications system comprising a plurality of nodes INTERCONNECTED BY A plurality of links in which a subset of the nodes and links form a worker path for carrying data through the communication system. The system comprises means for allocating the links and nodes a cost value relative to the worker path and means for selecting based on the cost value a further subset of the nodes and links to form a protection path for the worker path. A corresponding method.
摘要翻译：一种数据通信系统，包括由多个链路互连的多个节点，其中节点和链路的子集形成用于通过通信系统传送数据的工作者路径。该系统包括用于分配链路和节点相对于工作者路径的成本值的装置，以及用于基于成本值选择节点和链路的另外子集以形成用于工作者路径的保护路径的装置。一个相应的方法。

5. 发明申请

WO2004095738A1 COUNTER-PUMPED DISTRIBUTED RAMAN AMPLIFICATION IN WAVELENGTH DIVISION MULTIPLEX OPTICAL COMMUNICATION SYSTEMS 审中-公开
标题翻译：波分多分光纤通信系统中的反激式分布式拉曼放大
公开(公告)号：WO2004095738A1
公开(公告)日：2004-11-04
申请号：PCT/EP2004/050595
申请日：2004-04-23
申请人： MARCONI COMMUNICATIONS SPA , SUGLIANI, Simone , SACCHI, Giovanni , DI PASQUALE, Fabrizio
发明人： SUGLIANI, Simone , SACCHI, Giovanni , DI PASQUALE, Fabrizio
IPC分类号： H04B10/17
CPC分类号： H04B10/2916 , H01S3/094003 , H01S3/302
摘要： A Raman pump module (22) for generating pump radiation having a pump wavelength (λ p ) for coupling into a transmission fibre (2) of an optical wavelength division multiplex WDM communication system to provide Raman amplification of VVDM radiation counter propagating there through is disclosed. The pump module is for use in a communications system in which the WDM radiation has a transmission waveband (λ s ) and wherein the transmission fibre (2) has a zero dispersion wavelength (λm) lying midway between the transmission waveband and the pump wavelength. The module (22) comprises a Raman pump laser (18) for generating the pump radiation and decorrelating means (24) for de-correlating the longitudinal modes of the pump radiation before it is coupled into the transmission fibre.
摘要翻译：公开了一种用于产生具有用于耦合到光波分复用WDM通信系统的传输光纤（2）的泵浦波长（lambdap）的泵浦辐射的拉曼泵模块（22），以提供通过其传播的VVDM辐射计数器的拉曼放大。泵模块用于其中WDM辐射具有传输波段（lambdas）的通信系统，并且其中传输光纤（2）具有位于传输波段和泵浦波长之间的中间的零色散波长（lambdam）。模块（22）包括用于产生泵浦辐射的拉曼泵激光器（18）和去耦合装置（24），用于在耦合到传输光纤之前使泵浦辐射的纵向模式解相关。

6. 发明申请

WO2003079066A2 OPTICAL AMPLIFIER 审中-公开
标题翻译：光学放大器
公开(公告)号：WO2003079066A2
公开(公告)日：2003-09-25
申请号：PCT/IB2003/001470
申请日：2003-03-14
申请人： MARCONI COMMUNICATIONS SpA , FELLA, Paolo
发明人： FELLA, Paolo
IPC分类号： G02B6/00
CPC分类号： H01S3/094003 , H01S3/094011
摘要： An optical amplifier (10) comprises at least one strip (13) of doped fiber passed through by optical signals which are to be amplified and pump lasers (14, 14') generating pump signals passing through the doped fiber strip to produce the amplification effect. Before being input into the doped fiber (13) the appropriately polarized pump signals pass through a strip of polarizing fiber (16, 16') with polarization such as to offer low attenuation to the signal output by the laser toward the doped fiber. By means thereof high attenuation filtering of residual signals issuing from the doped fiber towards the laser and which were found to disturb operation of the laser and the performance of the pump and known optical amplifiers is obtained.
摘要翻译：光放大器（10）包括至少一个掺杂光纤带（13），所述掺杂光纤带通过将被放大的光信号，并且泵浦激光器（14,14'）产生泵浦信号，所述泵浦信号穿过掺杂光纤带产生放大效应。在输入到掺杂光纤（13）之前，适当偏振的泵浦信号通过具有偏振的偏振光纤（16,16'）带，以便向激光器输出的信号提供对掺杂光纤的低衰减。借助于此，从掺杂光纤向激光器发出的残余信号的高衰减滤波被发现会干扰激光器的工作以及泵和已知光放大器的性能。

7. 发明申请

WO2003015339A3 TELECOMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2003015339A3
公开(公告)日：2003-02-20
申请号：PCT/IB2002/003619
申请日：2002-08-09
申请人： MARCONI COMMUNICATIONS SPA , LANZONE, Sergio , TOSCANO, Orazio
发明人： LANZONE, Sergio , TOSCANO, Orazio
IPC分类号： H04J3/06
摘要： A method for generation of a clock (22) synchronized with time references derived from input signals (12) in an apparatus (10) of a telecommunications network comprising an input part (11) receiving the input signals and a part (13) for treatment of said input signals is described. In the input part (11) the method comprises the steps of deriving the time reference signals from the input signals, reading a edge of the reference signals, establishing the position of this edge relative to the internal data frame, inserting in the frame heading a pointer representing the established position of the edge relative to the frame and sending the frame to the treatment part. In the treatment part (13) the method comprises the steps of receiving the frame, extracting said pointer, generating said time reference clock (22) and synchronizing it with the position in the frame indicated by the pointer. An apparatus applying this method is also proposed.

8. 发明申请

WO2002089409A3 TELECOMMUNICATIONS NETWORK WITH AUTOMATIC DETECTION OF THE TOPOLOGY AND METHOD FOR THIS DETECTION 审中-公开
公开(公告)号：WO2002089409A3
公开(公告)日：2002-11-07
申请号：PCT/IB2002/002781
申请日：2002-04-25
申请人： MARCONI COMMUNICATIONS SPA , RAMBALDI, Antonia
发明人： RAMBALDI, Antonia
IPC分类号： H04L12/24
摘要： A telecommunications network with system for automatic detection of the topology of the network or of a sub-network thereof, comprising a plurality of network elements or nodes linked together to establish communications trails with termination points in ports of elements of the plurality of network elements. Each termination point is assigned a unique address in the network or in the sub-network and the corresponding network element sends along the outgoing trail from the termination point a message representing the unique address assigned and which is intended for the termination point at the other end of the trail. Each network element at either end of a communication trail therefore receives the message representing the address of the termination point of the element at the other end. In this way, each termination point of a connection will have received in the message the information that identifies the other termination point to which it is connected. A method for automatic detection of the topology of the network is also described.

9. 发明申请

WO2006048414A1 OPTICAL PATH ROUTING IN AN OPTICAL COMMUNICATIONS NETWORK 审中-公开
标题翻译：光通信网络中的光路径路由
公开(公告)号：WO2006048414A1
公开(公告)日：2006-05-11
申请号：PCT/EP2005/055657
申请日：2005-10-31
申请人： MARCONI COMMUNICATIONS SPA , FIASCHI, Giovanni , CAVIGLIA, Diego
发明人： FIASCHI, Giovanni , CAVIGLIA, Diego
IPC分类号： H04L12/56
CPC分类号： H04J14/0278 , H04J14/0227 , H04L45/124 , H04L45/62 , H04Q11/0062 , H04Q2011/0011 , H04Q2011/0073 , H04Q2011/0086
摘要： Routing method for paths in an optical network that includes nodes having limited conversion and/or regeneration capability and in which a routing algorithm based on considerations of cost of the links is employed and in which with the nodes is associated cost information that includes conversion and/or regeneration costs. Such conversion and/or regeneration cost information is considered in the routing algorithm together with the other cost information for calculation of the routings.
摘要翻译：包括具有有限转换和/或再生能力的节点的光网络中的路径的路由方法，并且其中采用基于链路成本考虑的路由算法，并且其中与节点相关联的成本信息包括转换和/ 或再生成本。在路由算法中考虑这样的转换和/或再生成本信息以及用于计算路由的其他成本信息。

10. 发明申请

WO2006008310A1 OPTIMISATION OF THE NUMBER AND LOCATION OF REGENERATIVE OR NON-REGENERATIVE REPEATERS IN WAVELENGTH DIVISION MULTIPLEX OPTICAL COMMUNICATION LINKS 审中-公开
标题翻译：优化多波长光纤通信链路中的再生或非再生中继器的数量和位置
公开(公告)号：WO2006008310A1
公开(公告)日：2006-01-26
申请号：PCT/EP2005/053530
申请日：2005-07-20
申请人： MARCONI COMMUNICATIONS SPA , BOTTARI, Giulio , CAVALIERE, Fabio
发明人： BOTTARI, Giulio , CAVALIERE, Fabio
IPC分类号： H04B10/17
CPC分类号： H04B10/2935
摘要： A method for optimisation of the number and location of regenerative or non-regenerative repeaters in a WDM link made up of N spans connected in a succession of N-1 intermediate sites to form link sections separated by sites containing regenerative repeaters, comprises a step for defining the number of regenerative repeaters needed and giving them a first location. Said step comprises the phases of defining targets OSNRs (VOSNRT) as a function of the number of spans and the type of fibre used in the spans, and defining a possible section between an initial site and a final site, appraising a metric function VM for said possible section obtained as a function of the difference between the OSNR (VOSNR) at the final end of the first span of said possible section and the corresponding target OSNR (VOSNRT) given by the number of spans in said possible section. If the appraised metric function VM satisfies an established quality parameter, add to the possible section the following span in the link and again appraise the metric function for said new possible section obtained as a function of the difference between the OSNR (VOSNR) at the final end of the first span of the possible section and the corresponding target OSNR (VOSNRT) with the new number of spans in the possible section. Said steps are repeated iteratively while adding spans to the possible section until the metric function VM no longer satisfies the quality parameter and one returns at the end site preceding the last span added and positions a regenerator in said site. The procedure is repeated until the end of the new section is identified or to exhaustion of the spans of the link.
摘要翻译：一种用于优化在连续N-1个中间站点中连接的N个跨度组成的WDM链路中的再生或非再生中继器的数量和位置的方法，以形成由包含再生中继器的站点分离的链路段，包括步骤定义所需的再生中继器的数量并给予它们第一个位置。所述步骤包括定义目标OSNR（VOSNRT）的阶段，其作为跨度的数量和在跨度中使用的光纤的类型的函数，并且定义初始站点和最终站点之间的可能部分，评估度量函数VM 所述可能部分是根据所述可能部分的第一跨度的最终端的OSNR（VOSNR）与由所述可能部分中的跨度数给出的相应目标OSNR（VOSNRT）之间的差异而获得的。如果评估度量函数VM满足已建立的质量参数，则在链路中添加以下跨度的可能部分，并再次评估所获得的所述新可能部分的度量函数作为最终的OSNR（VOSNR）之间的差异的函数可能部分的第一个跨度的结束和相应的目标OSNR（VOSNRT）与可能部分中的新的跨度数。所述步骤重复地重复，同时将跨度添加到可能的部分，直到度量函数VM不再满足质量参数，并且一个在最后一个跨度添加之前的终点站点返回，并将再生器定位在所述站点中。重复该过程，直到新部分的结尾被识别或链接的跨度耗尽。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式