公开(公告)号：US20090003839A1

公开(公告)日：2009-01-01

申请号：US12097670

申请日：2006-10-06

申请人： Gianmarco Bruno ,  Fabio Cavaliere

发明人： Gianmarco Bruno ,  Fabio Cavaliere

IPC分类号： H04B10/00

CPC分类号： H04B10/2537 ,  H04B10/07955 ,  H04B10/0797 ,  H04B10/2935

摘要： A method and apparatus for compensating for channel depletion of a multi-channel signal in an optical link or optical network comprising a chain of optical amplifiers. The method comprises determining channel depletion for each amplifier from the power of the input signal to the optical amplifier and the power of the output signal from the previous amplifier. Each amplifier is then controlled to amplify the signal to a level equal to the nominal (ideal) power plus the calculated channel depletion for that amplifier.

摘要翻译： 一种用于补偿光链路或光网络中的多信道信号的信道消耗的方法和装置，包括一系列光放大器。 该方法包括从输入信号到光放大器的功率和来自前一放大器的输出信号的功率确定每个放大器的信道耗尽。 然后控制每个放大器以将信号放大到等于标称（理想）功率加上该放大器计算的通道耗尽的电平。

公开(公告)号：US20080273873A1

公开(公告)日：2008-11-06

申请号：US11570987

申请日：2005-05-31

申请人： Gianmarco Bruno ,  Fabio Cavaliere

发明人： Gianmarco Bruno ,  Fabio Cavaliere

IPC分类号： H04B10/08 ,  H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： A method of assessing the feasibility of a composite optical path in an optical communications network in which the composite path is composed of two optical paths k1 and k2 is described. The method comprising the steps of: defining, for each individual optical path k and with type i interface, at least one parameter indicating its feasibility, calculating a quality Q factor Q′_i,k1+k2 of the signal for the composite path, estimated considering the deterioration which affects transmission over the paths k1 and k2 and comparing this quality Q′_i,k1+k2 with a value Qbare_i which is defined as the lowest value which can be taken on by a mapping function Q_i(.) for interface i and which gives the Q factor as a function of the OSNR received evaluated under the conditions that are considered to be the worst case that can be accepted whilst ensuring the desired signal quality and wherein the composite connection is considered feasible if Q′_i,k1+k2>=Qbare_i.

摘要翻译： 描述了一种评估光通信网络中复合光路的可行性的方法，其中复合路径由两个光路k 1和k 2组成。 该方法包括以下步骤：为每个独立光路k和类型i接口定义表示其可行性的至少一个参数，计算复合路径的信号的质量Q因子Q'_i，k 1 + k 2 考虑影响路径k 1和k 2上的传输的劣化，并且将该质量Q'_i，k1 + k2与被定义为可由映射函数Q_i执行的最低值的值Qbare_i进行估计， （。），并且其给出Q因子作为在被认为是可以被接受的条件下被评估的OSNR的函数，同时确保期望的信号质量，并且其中复合连接被认为是可行的，如果 Q'_i，k 1 + k 2> = Qbare_i。

公开(公告)号：US08666244B2

公开(公告)日：2014-03-04

申请号：US13375763

申请日：2009-06-01

申请人： Gianmarco Bruno ,  Fabio Cavaliere

发明人： Gianmarco Bruno ,  Fabio Cavaliere

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/07953

摘要： A method of monitoring optical parameters of a modulated optical signal comprises receiving a first optical power, Xi, of said optical signal for a first bandwidth, Bi, across the said optical signal and receiving a second optical power, Xj, of said optical signal for a second bandwidth, Bj, across the said optical signal. The method comprises obtaining a power spectral density description of said optical signal. The method comprises determining an optical signal to noise ratio of said optical signal. The optical signal to noise ratio depends on said first optical power, Xi, said second optical power, Xj, and said power spectral density description. The method also comprises generating a data signal indicative of said optical signal to noise ratio.

摘要翻译： 一种监测调制光信号的光学参数的方法包括：在所述光信号的两端接收所述光信号的第一带宽（Bi）的第一光功率Xi，并接收所述光信号的第二光功率X j， 第二带宽Bj，跨越所述光信号。 该方法包括获得所述光信号的功率谱密度描述。 该方法包括确定所述光信号的光信噪比。 光信噪比取决于所述第一光功率Xi，所述第二光功率Xj和所述功率谱密度描述。 该方法还包括产生指示所述光信噪比的数据信号。

公开(公告)号：US20120114330A1

公开(公告)日：2012-05-10

申请号：US13375763

申请日：2009-06-01

申请人： Gianmarco Bruno ,  Fabio Cavaliere

发明人： Gianmarco Bruno ,  Fabio Cavaliere

IPC分类号： H04B10/08

CPC分类号： H04B10/07953

摘要： A method of monitoring optical parameters of a modulated optical signal comprises receiving a first optical power, Xi, of said optical signal for a first bandwidth, Bi, across the said optical signal and receiving a second optical power, Xj, of said optical signal for a second bandwidth, Bj, across the said optical signal. The method comprises obtaining a power spectral density description of said optical signal. The method comprises determining an optical signal to noise ratio of said optical signal. The optical signal to noise ratio depends on said first optical power, Xi, said second optical power, Xj, and said power spectral density description. The method also comprises generating a data signal indicative of said optical signal to noise ratio.

摘要翻译： 一种监测调制光信号的光学参数的方法包括：在所述光信号的两端接收所述光信号的第一带宽（Bi）的第一光功率Xi，并接收所述光信号的第二光功率X j， 第二带宽Bj，跨越所述光信号。 该方法包括获得所述光信号的功率谱密度描述。 该方法包括确定所述光信号的光信噪比。 光信噪比取决于所述第一光功率Xi，所述第二光功率Xj和所述功率谱密度描述。 该方法还包括产生指示所述光信噪比的数据信号。

公开(公告)号：US08121491B2

公开(公告)日：2012-02-21

申请号：US12097670

申请日：2006-10-06

申请人： Gianmarco Bruno ,  Fabio Cavaliere

发明人： Gianmarco Bruno ,  Fabio Cavaliere

IPC分类号： H04B10/00

CPC分类号： H04B10/2537 ,  H04B10/07955 ,  H04B10/0797 ,  H04B10/2935

摘要： A method and apparatus for compensating for channel depletion of a multi-channel signal in an optical link or optical network comprising a chain of optical amplifiers. The method comprises determining channel depletion for each amplifier from the power of the input signal to the optical amplifier and the power of the output signal from the previous amplifier. Each amplifier is then controlled to amplify the signal to a level equal to the nominal (ideal) power plus the calculated channel depletion for that amplifier.

摘要翻译： 一种用于补偿光链路或光网络中的多信道信号的信道消耗的方法和装置，包括一系列光放大器。 该方法包括从输入信号到光放大器的功率和来自前一放大器的输出信号的功率确定每个放大器的信道耗尽。 然后控制每个放大器以将信号放大到等于标称（理想）功率加上该放大器计算的通道耗尽的电平。

公开(公告)号：US07634167B2

公开(公告)日：2009-12-15

申请号：US11570987

申请日：2005-05-31

申请人： Gianmarco Bruno ,  Fabio Cavaliere

发明人： Gianmarco Bruno ,  Fabio Cavaliere

IPC分类号： G02B6/00

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： A method of assessing the feasibility of a composite optical path in an optical communications network in which the composite path is composed of two optical paths k1 and k2 is described. The method comprising the steps of defining, for each individual optical path k and with type i interface, at least one parameter indicating its feasibility, calculating a quality Q factor Q′_i,k1+k2 of the signal for the composite path, estimated considering the deterioration which affects transmission over the paths k1 and k2 and comparing this quality Q′_i,k1+k2 with a value Qbare_i which is defined as the lowest value which can be taken on by a mapping function Q_i(.) for interface i and which gives the Q factor as a function of the OSNR received evaluated under the conditions that are considered to be the worst case that can be accepted while ensuring the desired signal quality.

摘要翻译： 描述了一种评估光通信网络中的复合光路的可行性的方法，其中复合路径由两个光路k1和k2组成。 该方法包括以下步骤：针对每个独立的光路k和类型i接口，定义至少一个指示其可行性的参数，计算考虑到复合路径的信号的质量Q因子Q'_i，k1 + k2 影响通过路径k1和k2的传输的劣化，并将该质量Q'_i，k1 + k2与被定义为接口i的映射函数Q_i（。）可以接受的最低值的值Qbare_i进行比较， 其给出Q因子作为在被认为是可以被接受以同时确保期望的信号质量的最坏情况下评估的OSNR的函数。

公开(公告)号：US09197330B2

公开(公告)日：2015-11-24

申请号：US13579932

申请日：2010-02-26

申请人： Gianmarco Bruno

发明人： Gianmarco Bruno

IPC分类号： H04B10/85

CPC分类号： H04B10/85

摘要： A communications network element comprises an input to receive an input optical signal having an input spectral property and carrying input traffic, an output and a monitoring port. Optical signal processing apparatus to receive the input signal and to form an output optical signal having an output spectral property and carrying output traffic. An optical splitter to tap off a part of one of the input signal and the output signal to form a tapped signal having a respective one of the input spectral property and input traffic, and the output spectral property and output traffic. Optical signal transforming apparatus to receive the tapped signal and to apply an optical transfer function (OTF) to it to form an optical monitoring signal, and to provide the monitoring signal to the monitoring port. The OTF preserves the spectral property of the tapped signal and applies a time-domain obfuscation to the tapped signal.

摘要翻译： 通信网络元件包括用于接收具有输入频谱特性并承载输入业务的输入光信号的输入端，输出端和监视端口。 光信号处理装置，用于接收输入信号并形成具有输出频谱特性并承载输出业务量的输出光信号。 一种光分路器，用于抽出输入信号和输出信号中的一个的一部分，以形成具有输入频谱特性和输入业务中的相应一个以及输出频谱特性和输出业务的抽头信号。 光信号变换装置，用于接收抽头信号并向其施加光传输函数（OTF）以形成光监视信号，并向监视端口提供监控信号。 OTF保留抽头信号的频谱特性，并对点击信号应用时域混淆。

公开(公告)号：US20150244493A1

公开(公告)日：2015-08-27

申请号：US14382299

申请日：2012-03-22

申请人： Filippo Cugini ,  Giulio Bottari ,  Gianmarco Bruno ,  Piero Castoldi ,  Paola Iovanna ,  Nicola Sambo

发明人： Filippo Cugini ,  Giulio Bottari ,  Gianmarco Bruno ,  Piero Castoldi ,  Paola Iovanna ,  Nicola Sambo

IPC分类号： H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/02 ,  H04J14/0224 ,  H04J14/0254 ,  H04J14/0257 ,  H04J14/026 ,  H04J14/0267

摘要： A method of changing the spectral position of a lightpath between a source node and a destination node of an optical network. The optical network uses a flexible grid for spectral allocation and the lightpath has been allocated first spectral resources at a first spectral position. The method comprises, at the source node, reserving additional spectral resources for the lightpath which are contiguous in frequency with the first spectral resources. The method comprises re-tuning a light source at the source node such that the lightpath moves in frequency from using the first spectral resources at the first spectral position to using second spectral resources at a second spectral position, wherein the second spectral resources comprise at least some of the additional spectral resources. The method comprises releasing at least some of the first spectral resources. The source node continues to send traffic over the lightpath during the re-tuning.

摘要翻译： 一种在光网络的源节点和目的地节点之间改变光路的光谱位置的方法。 光网络使用灵活的网格进行光谱分配，并且光路已经在第一光谱位置分配了第一光谱资源。 该方法包括在源节点处为与第一光谱资源频率相邻的光路预留附加光谱资源。 该方法包括在源节点处重新调谐光源，使得光路在频率上从使用第一光谱位置处的第一光谱资源移动到在第二光谱位置处使用第二光谱资源，其中第二光谱资源至少包括 一些额外的频谱资源。 该方法包括释放至少一些第一光谱资源。 在重新调谐期间，源节点继续在光路上发送流量。

公开(公告)号：US20110255151A1

公开(公告)日：2011-10-20

申请号：US13123890

申请日：2008-10-23

申请人： Roberto Magri ,  Gianmarco Bruno

发明人： Roberto Magri ,  Gianmarco Bruno

IPC分类号： H01S3/30 ,  H01S3/14

CPC分类号： H01S3/06758 ,  H01S3/10015 ,  H01S3/10069 ,  H01S3/1608 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/04 ,  H04B10/2942

摘要： A method of compensating for channel power depletion induced by Raman amplification noise in a hybrid distributed Raman amplifier-Erbium doped fibre amplifier. In the method, an equivalent noise figure is determined for a virtual amplifier equivalent to the hybrid distributed Raman amplifier-Erbium doped fibre amplifier, and having an input power equal to the input power of the Erbium doped fibre amplifier when the distributed Raman amplifier is off and an output power equal to the Erbium doped fibre amplifier output power. A compensation power, dependent at least in part upon the equivalent noise figure, is determined. A control signal is provided for controlling the hybrid amplifier such that an optical signal amplified by the hybrid amplifier has a total output power equal to a predetermined nominal output power plus the compensation power.

摘要翻译： 一种在混合分布式拉曼放大器 - 掺铒光纤放大器中补偿由拉曼放大噪声引起的信道功耗的方法。 在该方法中，对于等效于混合分布式拉曼放大器 - 掺铒光纤放大器的虚拟放大器确定等效噪声系数，并且当分布式拉曼放大器关闭时，其输入功率等于掺铒光纤放大器的输入功率 输出功率等于掺铒光纤放大器的输出功率。 确定至少部分依赖于等效噪声系数的补偿功率。 提供控制信号以控制混合放大器，使得由混合放大器放大的光信号具有等于预定标称输出功率加上补偿功率的总输出功率。

公开(公告)号：US09264133B2

公开(公告)日：2016-02-16

申请号：US14131492

申请日：2011-07-08

申请人： Gianmarco Bruno

发明人： Gianmarco Bruno

IPC分类号： H04B10/00 ,  H04B10/07 ,  H04L12/26 ,  H04L29/06 ,  H04L12/931 ,  H04L12/939 ,  H04Q3/00 ,  H04B10/079

CPC分类号： H04B10/0705 ,  H04B10/0795 ,  H04L43/12 ,  H04L49/208 ,  H04L49/555 ,  H04L63/30 ,  H04Q3/0087

摘要： A network traffic monitoring apparatus and method of monitoring network traffic on a network path is disclosed. The apparatus comprises a first path arranged to receive a portion of the network traffic from the network path and a monitoring port arranged to monitor the portion of network traffic. The apparatus further comprises a switch having an input port communicatively coupled to the first path, and an output port communicatively coupled to the monitoring port. The switch is arranged to selectively toggle between the first state in which the portion of network traffic can pass from the input port to the output port and a second state, in which the portion of network traffic is prevented from passing from the input port to the output port, in dependence of a switching signal. The apparatus further comprises a second path for communicating a monitoring status signal to a network device.

摘要翻译： 公开了一种网络流量监控装置及网络通路监控方法。 该装置包括被布置为从网络路径接收网络业务的一部分的第一路径和被布置为监视网络业务部分的监视端口。 该设备还包括具有通信地耦合到第一路径的输入端口和通信地耦合到监视端口的输出端口的交换机。 交换机被布置成选择性地在网络业务部分可以从输入端口传送到输出端口的第一状态和第二状态之间切换，其中网络业务部分被阻止从输入端口传递到 输出端口，根据切换信号。 该装置还包括用于将监视状态信号传送到网络设备的第二路径。