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1. 发明授权

US08831424B2 Channel validation in optical networks using multi-channel impairment evaluation 有权
标题翻译：使用多通道损伤评估的光网络中的信道验证
公开(公告)号：US08831424B2
公开(公告)日：2014-09-09
申请号：US12432765
申请日：2009-04-30
申请人： Rosanna Pastorelli , Stefano Piciaccia , Alberto Tanzi , Eliana Silvia Vercelli
发明人： Rosanna Pastorelli , Stefano Piciaccia , Alberto Tanzi , Eliana Silvia Vercelli
IPC分类号： H04B14/00 , H04B10/00 , H04J14/02 , H04B10/079 , H04Q11/00
CPC分类号： H04B10/0795 , H04B10/0793 , H04J14/0227 , H04J14/0257 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0271 , H04Q11/0062 , H04Q2011/0073 , H04Q2011/0086
摘要： In an optical communication network that includes a plurality of interconnected network nodes, a method includes storing in each network node, and for each communication channel that traverses the node, one or more impairment margins of respective impairments that affect the communication channel. A potential communication channel that traverses a subset of the nodes in the network is identified. A quality of the potential communication channel is evaluated by processing the impairment margins stored in the nodes in the subset.
摘要翻译：在包括多个互连网络节点的光通信网络中，一种方法包括在每个网络节点中以及对于遍历节点的每个通信信道存储影响通信信道的各个损伤的一个或多个损伤余量。识别遍历网络中节点子集的潜在通信信道。潜在通信信道的质量通过处理存储在子集中的节点中的减值裕度来评估。

2. 发明授权

US08457490B2 Use of subcarrier deactivation in a multi-subcarrier channel to improve reach in an optical network 有权
标题翻译：在多子载波信道中使用子载波去激活来改善光网络中的覆盖
公开(公告)号：US08457490B2
公开(公告)日：2013-06-04
申请号：US12732676
申请日：2010-03-26
申请人： Maurizio Gazzola , Stefano Piciaccia , Lorenzo Ghioni
发明人： Maurizio Gazzola , Stefano Piciaccia , Lorenzo Ghioni
IPC分类号： H04J14/00
CPC分类号： H04J14/0298 , H04J14/0212 , H04J14/0258 , H04J14/0265 , H04J14/0267 , H04J14/0271 , H04J14/0284
摘要： Various example embodiments are disclosed. According to an example embodiment, a method may include determining that a transmission of a data signal over a path of a wavelength division multiplexed (WDM) optical network using a group of optical subcarriers is not optically feasible; determining that the transmission of the data signal over the path using a subset of the group of optical subcarriers is optically feasible; activating subcarriers for the subset of optical carriers while deactivating one or more optical subcarriers of the group, at least one deactivated subcarrier provided between at least two activated subcarriers of the group; and transmitting the data signal over at least a portion of the path using the activated subcarriers of the group.
摘要翻译：公开了各种示例性实施例。根据示例实施例，一种方法可以包括确定使用一组光子载波的波分复用（WDM）光网络的路径上的数据信号的传输不是光学上可行的; 确定使用光子载波组的子集在路径上传输数据信号是光学上可行的; 激活所述光载波子集的子载波，同时去激活所述组的一个或多个光子载波，所述组中的至少两个激活的子载波之间提供至少一个去激活子载波; 以及使用所述组的激活的子载波在所述路径的至少一部分上发送所述数据信号。

3. 发明申请

US20060072918A1 Optical add/drop multiplexer with reconfigurable add wavelength selective switch 有权
公开(公告)号：US20060072918A1
公开(公告)日：2006-04-06
申请号：US10959366
申请日：2004-10-06
申请人： Ornan Gerstel , Stefano Piciaccia , Mauro Macchi , Mauro Casanova , Ronald Johnson
发明人： Ornan Gerstel , Stefano Piciaccia , Mauro Macchi , Mauro Casanova , Ronald Johnson
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0213 , H04J14/0219 , H04J14/0221 , H04Q2011/0075
摘要： A reconfigurable WDM add/drop multiplexer and its method of operation at an add/drop node on an optical fiber carrying a plurality of WDM signals is described. The WDM add/drop multiplexer has a coupler and a demultiplexer element dropping WDM signals from the optical fiber to a plurality of drop terminals, and a wavelength-selective switch adding WDM signals from a plurality of add terminals onto the optical fiber. The coupler splits the WDM signals received from the optical fiber and passes the split WDM signals to the first and second output terminals. The demultiplexer element separates the split WDM signals at the plurality of drop terminals. The wavelength-selective switch, which has an input terminal for connection to the second coupler output terminal and an output terminal for connection to the optical fiber, selectively adds WDM signals on the plurality of add terminals to the optical fiber responsive to control signals.

4. 发明授权

US06941079B1 Optical demultiplexer with multi-channel power control and tilt compensation 有权
标题翻译：光分路器具有多通道功率控制和倾斜补偿功能
公开(公告)号：US06941079B1
公开(公告)日：2005-09-06
申请号：US09865917
申请日：2001-05-24
申请人： Gianpaolo Barozzi , Cinzia Ferrari , Stefano Piciaccia
发明人： Gianpaolo Barozzi , Cinzia Ferrari , Stefano Piciaccia
IPC分类号： H04B10/00 , H04B10/08 , H04B10/158 , H04J14/02
CPC分类号： H04B10/077 , H04B10/07955 , H04B10/673 , H04J14/02 , H04J14/0221
摘要： Systems and methods for controlling power of WDM channels in a WDM receiver. A preamplifier is provided prior to a demultiplexer in the WDM receiver chain. The gain of the preamplifier may be controlled based on power measurements made on individual WDM channels. A filter with controllable tilt may be employed to compensate for amplifier gain tilt and assure that all of the WDM channels remain within the dynamic range of the photodetector and receiver electronics. This provides improved bit error rate performance.
摘要翻译：用于控制WDM接收机中WDM信道功率的系统和方法。在WDM接收机链中的解复用器之前提供前置放大器。可以基于在各个WDM信道上进行的功率测量来控制前置放大器的增益。可以采用具有可控倾斜的滤波器来补偿放大器增益倾斜，并确保所有WDM通道保持在光电检测器和接收器电子器件的动态范围内。这提供了改进的误码率性能。

5. 发明申请

US20130195449A1 Contentionless Add-Drop Multiplexer 审中-公开
标题翻译：无竞争的分插复用器
公开(公告)号：US20130195449A1
公开(公告)日：2013-08-01
申请号：US13363660
申请日：2012-02-01
申请人： Lorenzo Ghioni , Maurizio Gazzola , Ronald Johnson , Stefano Piciaccia
发明人： Lorenzo Ghioni , Maurizio Gazzola , Ronald Johnson , Stefano Piciaccia
IPC分类号： H04J14/02
CPC分类号： H04J14/0212 , H04J14/0204 , H04J14/0205 , H04J14/0217 , H04J14/0219 , H04J14/026
摘要： An optical add/drop module of a reconfigurable optical add/drop multiplexer node includes a first set of optical switches configured to receive respective first optical signals, at respective channel receive ports, to be added to a first wave division multiplexed optical signal and to direct the first optical signals to, in a first state, at least one fully functional transmit degree port, and in a second state, to at least one partially functional transmit degree port; and a second set of optical switches configured to receive respective second optical signals to be dropped from a second wave division multiplexed signal via, in a first state, a fully functional receive degree port, and in a second state, via a partially functional receive degree port, and to direct the second optical signals to respective channel transmit ports. An auxiliary device can be used to make the partially functional ports fully functional.
摘要翻译：可重构光分插复用器节点的光分插模块包括第一组光开关，其被配置为在相应的信道接收端口处接收相应的第一光信号，以被添加到第一波分复用光信号并引导第一光信号在第一状态下至少一个完全功能的传输度端口，并且在第二状态下，传送到至少一个部分功能的传输度端口; 以及第二组光开关，被配置为在第一状态下从第二波分复用信号接收相应的第二光信号，所述第二光信号在全功能接收度端口处，并且在第二状态下经由部分功能接收度并且将第二光信号引导到相应的信道发射端口。辅助设备可用于使部分功能端口完全正常工作。

6. 发明授权

US07634196B2 Optical add/drop multiplexer with reconfigurable add wavelength selective switch 有权
标题翻译：具有可重新配置的波长选择开关的光分插复用器
公开(公告)号：US07634196B2
公开(公告)日：2009-12-15
申请号：US10959366
申请日：2004-10-06
申请人： Ornan Gerstel , Stefano Piciaccia , Mauro Macchi , Mauro Rudi Casanova , Ronald Johnson
发明人： Ornan Gerstel , Stefano Piciaccia , Mauro Macchi , Mauro Rudi Casanova , Ronald Johnson
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0213 , H04J14/0219 , H04J14/0221 , H04Q2011/0075
摘要： A reconfigurable WDM add/drop multiplexer and its method of operation at an add/drop node on an optical fiber carrying a plurality of WDM signals is described. The WDM add/drop multiplexer has a coupler and a demultiplexer element dropping WDM signals from the optical fiber to a plurality of drop terminals, and a wavelength-selective switch adding WDM signals from a plurality of add terminals onto the optical fiber. The coupler splits the WDM signals received from the optical fiber and passes the split WDM signals to the first and second output terminals. The demultiplexer element separates the split WDM signals at the plurality of drop terminals. The wavelength-selective switch, which has an input terminal for connection to the second coupler output terminal and an output terminal for connection to the optical fiber, selectively adds WDM signals on the plurality of add terminals to the optical fiber responsive to control signals.
摘要翻译：描述了可重配置的WDM分插复用器及其在携带多个WDM信号的光纤上的加/减节点上的操作方法。 WDM分插复用器具有耦合器和解复用器元件，其将来自光纤的WDM信号丢弃到多个液滴端子，以及波长选择开关，将来自多个添加端子的WDM信号添加到光纤上。耦合器分离从光纤接收的WDM信号，并将分离的WDM信号传送到第一和第二输出端。解复用器元件分离多个分接端子处的分离WDM信号。具有用于连接到第二耦合器输出端子的输入端子和用于连接到光纤的输出端子的波长选择开关响应于控制信号选择性地将多个添加端子上的WDM信号添加到光纤。

7. 发明授权

US06259555B1 Multi-band amplification system for dense wavelength division multiplexing 失效
标题翻译：用于密集波分复用的多波段放大系统
公开(公告)号：US06259555B1
公开(公告)日：2001-07-10
申请号：US09494783
申请日：2000-01-31
申请人： Fausto Meli , Gianpaolo Barozzi , Stefano Piciaccia , Stefano Aina , Silvia Turolla
发明人： Fausto Meli , Gianpaolo Barozzi , Stefano Piciaccia , Stefano Aina , Silvia Turolla
IPC分类号： H04J1402
CPC分类号： H04J14/0221
摘要： An optical transmission system has been designed to optimize the use of the spectral emission range of rare-earth-doped fiber amplifiers. The system includes a wide band of channels in the spectral emission range of erbium-doped fiber amplifiers, which is split into two sub-bands, a low sub-band corresponding to the low end of the range and a high sub-band corresponding to the high end of the range. The two sub-bands are separately amplified and optimized, and then recombined without significant competition between the two sub-bands. In addition, an equalizing filter, such as a specialized Bragg filter or interferential filter, is applied to the low sub-band instead of the entire band of channels, thus greatly reducing any equalization need or unequalization effects. In an optical line amplifier for the system, the wide band is amplified in a first stage of a fiber amplifier that operates in a linear condition, the wide band is split into the two sub-bands, and one or the two sub-bands is amplified with the second stage of the fiber amplifier that operates in a saturation condition.
摘要翻译：已经设计了一种光传输系统来优化稀土掺杂光纤放大器的光谱发射范围的使用。该系统包括在掺铒光纤放大器的光谱发射范围内的宽带信道，其被分成两个子带，对应于该范围的低端的低子带和对应于高端的范围。两个子带分别进行扩增和优化，然后在两个子带之间没有显着竞争的情况下重组。另外，诸如专用布拉格滤波器或干涉滤波器之类的均衡滤波器被应用于低子带而不是整个信道频带，从而大大减少了任何均衡需求或不平等效应。在用于该系统的光线路放大器中，宽带在光纤放大器的第一级被放大，其工作在线性状态，宽带被分成两个子带，一个或两个子带是用在饱和状态下工作的光纤放大器的第二级放大。

8. 发明授权

US06160660A Bidirectional optical transmission system for dense interleaved wavelength division multiplexing 有权
标题翻译：双向光传输系统用于密集交织波分复用
公开(公告)号：US06160660A
公开(公告)日：2000-12-12
申请号：US222780
申请日：1998-12-30
申请人： Stefano Aina , Fausto Meli , Stefano Piciaccia
发明人： Stefano Aina , Fausto Meli , Stefano Piciaccia
IPC分类号： H04B10/17 , H01S3/00
CPC分类号： H04B10/2972
摘要： An optical fiber amplifier and filtering apparatus and method for a bidirectional wavelength-division-multiplexing (WDM) system having odd and even interleaved channels is disclosed. The apparatus uses optical circulators, in-fiber Bragg gratings, and erbium-doped fiber amplifiers to amplify channels traveling in opposite directions in a WDM system and to filter unwanted ASE and back reflection noise between the channels. Interface circulators positioned at opposite ends of the apparatus respectively receive odd and even channels traveling in opposite directions in the WDM system and pass the channels through an erbium-doped fiber amplifier. Other circulators direct the amplified channels to two series of Bragg gratings that respectively reflect only the odd channels and pass only the even channels or vice versa, thereby filtering ASE and other noise located between the channels. An additional amplifier may boost the channels before they exit the apparatus via the interface circulators.
摘要翻译：公开了一种具有奇数和偶数交织信道的双向波分复用（WDM）系统的光纤放大器和滤波装置及方法。该装置使用光循环器，光纤布拉格光栅和掺铒光纤放大器来放大在WDM系统中以相反方向行进的通道，并且滤除通道之间不需要的ASE和反射反射噪声。位于设备相对端的接口循环器分别接收在WDM系统中以相反方向行进的奇数和偶数通道，并使通道穿过掺铒光纤放大器。其他循环器将放大的通道指向两个系列的布拉格光栅，分别仅反射奇数通道并仅通过偶数通道，反之亦然，从而过滤ASE和其它通道之间的噪声。一个附加的放大器可以在它们通过接口循环器离开设备之前升高通道。

9. 发明授权

US08903240B2 Scalable reconfigurable optical add-drop multiplexer 有权
标题翻译：可扩展可重配置的光分插复用器
公开(公告)号：US08903240B2
公开(公告)日：2014-12-02
申请号：US13363671
申请日：2012-02-01
申请人： Lorenzo Ghioni , Enrico Self , Stefano Piciaccia , Maurizio Gazzola , Ronald Johnson , Luca Della Chiesa
发明人： Lorenzo Ghioni , Enrico Self , Stefano Piciaccia , Maurizio Gazzola , Ronald Johnson , Luca Della Chiesa
IPC分类号： H04J14/02 , H04Q11/00
CPC分类号： H04J14/0212 , H04J14/0219
摘要： An apparatus includes a first optical switching complex, a second optical switching complex in optical communication with the first optical switching complex, and an optical add/drop module in optical communication with the first optical switching complex and the second optical switching complex. At least one of the optical switching complexes includes a wavelength selective switch that is configured to be arranged in a cascaded configuration that, when so configured, results in an increase in a number of available transmit and receive ports available per degree of the apparatus.
摘要翻译：一种装置包括第一光交换复合体，与第一光交换复合体光通信的第二光交换复合体，以及与第一光交换复合体和第二光交换复合体进行光通信的光分插模块。光交换复合体中的至少一个包括波长选择性开关，其被配置为以级联配置布置，当这样配置时，导致每个装置可用的可用发射和接收端口的数量增加。

10. 发明授权

US08670666B2 Channel validation in optical networks using multi-channel impairment evaluation 有权
标题翻译：使用多通道损伤评估的光网络中的信道验证
公开(公告)号：US08670666B2
公开(公告)日：2014-03-11
申请号：US12430902
申请日：2009-04-28
申请人： Rosanna Pastorelli , Stefano Piciaccia , Alberto Tanzi , Eliana Silvia Vercelli
发明人： Rosanna Pastorelli , Stefano Piciaccia , Alberto Tanzi , Eliana Silvia Vercelli
IPC分类号： H04J14/00 , H04B10/08
CPC分类号： H04B10/0793 , H04J14/0227 , H04J14/0257 , H04J14/0258 , H04J14/0269 , H04J14/0271 , H04Q2011/0049 , H04Q2011/0073 , H04Q2011/0083 , H04Q2011/0084 , H04Q2011/0086
摘要： In an optical communication network that includes a plurality of interconnected network nodes, a method includes storing in each network node one or more cross-talk margins of respective communication channels that traverse the node. A potential communication channel that traverses a subset of the nodes in the network is identified. A quality of the potential communication channel is evaluated by processing the cross-talk margins stored in the nodes in the subset.
摘要翻译：在包括多个互连网络节点的光通信网络中，一种方法包括在每个网络节点中存储穿过所述节点的各个通信信道的一个或多个串话边缘。识别遍历网络中节点子集的潜在通信信道。通过处理存储在子集中的节点中的串话边缘来评估潜在通信信道的质量。

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