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1. 发明申请

US20160149638A1 OPTICAL MONITORING IN AN OPTICAL COMMUNICATIONS NETWORK 有权
标题翻译：光通信网络中的光学监控
公开(公告)号：US20160149638A1
公开(公告)日：2016-05-26
申请号：US14898225
申请日：2013-06-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Gianmarco Bruno , Alberto Deho
IPC分类号： H04B10/079
CPC分类号： H04B10/079 , H04B10/07 , H04B10/85
摘要： A communications network element comprises a network element input, a network element output and a monitoring port. An optical splitting device taps a portion of an input optical signal or an output optical signal to form a first signal. An optical signal transforming apparatus applies an optical transfer function to the first signal to form the optical monitoring signal applied to the monitoring port. The optical transfer function preserves the spectral property of the first signal and applies a time-domain obfuscation to the tapped signal. The optical signal transforming apparatus comprises an optical through signal path, an optical splitting device positioned in the optical through signal path and an optical combining device positioned in the optical through signal path. An optical feedback path is connected to the optical splitting device and the optical combining device. The optical splitting device is arranged to tap off a portion of a signal passing along the through signal path and apply it to the feedback path, and the optical combining device is arranged to recombine at least part of the tapped portion of the signal with the signal passing along the through signal path.
摘要翻译：通信网元包括网元输入，网元输出和监控端口。光分路装置抽出一部分输入光信号或输出光信号以形成第一信号。光信号变换装置对第一信号应用光传递函数，以形成施加到监视端口的光监视信号。光学传递函数保留第一个信号的光谱特性，并对点火信号施加时域混淆。光信号变换装置包括光通信信号路径，位于光通信信号路径中的光分路装置和位于光通信信号路径中的光合成装置。光学反馈路径连接到光分路装置和光学组合装置。光分路装置被布置成分离沿着通过信号路径的信号的一部分并将其施加到反馈路径，并且光学组合装置被布置成将信号的抽头部分的至少一部分与信号沿着通过信号路径传递。

2. 发明授权

US09641246B2 Optical monitoring in an optical communications network 有权
公开(公告)号：US09641246B2
公开(公告)日：2017-05-02
申请号：US14898225
申请日：2013-06-18
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Gianmarco Bruno , Alberto Deho
IPC分类号： H04B10/079 , H04B10/07 , H04B10/85
CPC分类号： H04B10/079 , H04B10/07 , H04B10/85
摘要： A communications network element comprises a network element input, a network element output and a monitoring port. An optical splitting device taps a portion of an input optical signal or an output optical signal to form a first signal. An optical signal transforming apparatus applies an optical transfer function to the first signal to form the optical monitoring signal applied to the monitoring port. The optical transfer function preserves the spectral property of the first signal and applies a time-domain obfuscation to the tapped signal. The optical signal transforming apparatus comprises an optical through signal path, an optical splitting device positioned in the optical through signal path and an optical combining device positioned in the optical through signal path. An optical feedback path is connected to the optical splitting device and the optical combining device. The optical splitting device is arranged to tap off a portion of a signal passing along the through signal path and apply it to the feedback path, and the optical combining device is arranged to recombine at least part of the tapped portion of the signal with the signal passing along the through signal path.

3. 发明授权

US09614613B2 Communication network element and method of mitigating an optical jamming attack against an optical communication system 有权
公开(公告)号：US09614613B2
公开(公告)日：2017-04-04
申请号：US14650358
申请日：2012-12-12
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Gianmarco Bruno
IPC分类号： H04B10/00 , H04B10/07 , H04Q11/00 , H04B10/85 , H04K3/00 , H04J14/00
CPC分类号： H04B10/0705 , H04B10/85 , H04K3/228 , H04K2203/14 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0049 , H04Q2011/0083
摘要： A communication network element (10) comprising: an optical path (12) for an optical communication signal (14); a monitoring port (16) arranged to output an optical monitoring signal; an optical splitter (20) provided in the optical path, the optical splitter arranged to receive the optical communication signal and to split off a part of the optical communication signal to form the optical monitoring signal; and optical isolation apparatus (22) connected between the optical splitter and the monitoring port, the optical isolation apparatus arranged to transmit the optical monitoring signal propagating towards the monitoring port and arranged to apply an attenuation, IA, to an attacking optical signal (24) propagating from the monitoring port towards the optical splitter to thereby prevent a substantial part of the attacking optical signal being transmitted to the optical path.

4. 发明申请

US20150318918A1 Communication Network Element and Method of Mitigating an Optical Jamming Attack Against an Optical Communication System 有权
标题翻译：通信网络元件和减轻对光通信系统的光干扰攻击的方法
公开(公告)号：US20150318918A1
公开(公告)日：2015-11-05
申请号：US14650358
申请日：2012-12-12
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Gianmarco Bruno
IPC分类号： H04B10/07 , H04K3/00 , H04Q11/00 , H04B10/85
CPC分类号： H04B10/0705 , H04B10/85 , H04K3/228 , H04K2203/14 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0049 , H04Q2011/0083
摘要： A communication network element (10) comprising: an optical path (12) for an optical communication signal (14); a monitoring port (16) arranged to output an optical monitoring signal; an optical splitter (20) provided in the optical path, the optical splitter arranged to receive the optical communication signal and to split off a part of the optical communication signal to form the optical monitoring signal; and optical isolation apparatus (22) connected between the optical splitter and the monitoring port, the optical isolation apparatus arranged to transmit the optical monitoring signal propagating towards the monitoring port and arranged to apply an attenuation, IA, to an attacking optical signal (24) propagating from the monitoring port towards the optical splitter to thereby prevent a substantial part of the attacking optical signal being transmitted to the optical path.
摘要翻译：一种通信网络元件（10），包括：用于光通信信号（14）的光路（12）; 监视端口（16），布置成输出光监视信号; 设置在所述光路中的光分路器（20），所述光分路器被布置成接收所述光通信信号并且分离所述光通信信号的一部分以形成所述光监视信号; 以及光隔离装置（22），其连接在所述光分路器和所述监视端口之间，所述光隔离装置被布置成传送朝向所述监视端口传播的所述光监视信号，并且布置成将衰减IA应用于攻击光信号（24）从监视端口向分光器传播，从而防止大部分攻击光信号传输到光路。

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