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1. 发明公开

EP3036854A1 OPTICAL SWITCHING 有权
标题翻译：光学切换
公开(公告)号：EP3036854A1
公开(公告)日：2016-06-29
申请号：EP13750879.2
申请日：2013-08-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： SCAFFARDI, Mirco , ANDRIOLLI, Nicola , BOGONI, Antonella , CERUTTI, Isabella , CASTOLDI, Piero
IPC分类号： H04J14/04 , H04Q11/00 , H04J14/00
CPC分类号： H04Q11/0005 , H04J14/00 , H04J14/04 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/0028 , H04Q2011/0035
摘要： An optical switch (10) comprising: inputs (12) to receive input optical signals at respective wavelengths and having planar wavefronts; conversion apparatus (14) to convert each input optical signal into a respective optical signal having a respective helical wavefront, each helical wavefront having a different orbital angular momentum, OAM; optical multiplexing apparatus (16) to receive each helical wavefront optical signal from the conversion apparatus and to multiplex the helical wavefront optical signals into an OAM multiplexed optical signal; and optical demultiplexing apparatus (18) comprising a plurality of outputs (20), the optical demultiplexing apparatus arranged to: receive the OAM multiplexed optical signal; demultiplex the OAM multiplexed optical signal into a plurality of wavelength multiplexed optical signals each having a different OAM; reconvert each wavelength multiplexed optical signal from its helical wavefront into a respective planar wavefront; and deliver each planar wavefront wavelength multiplexed optical signal to a respective one of the outputs according to the respective OAM it had before reconversion.
摘要翻译：一种光开关（10），包括：输入端（12），用于接收各个波长的输入光信号并具有平面波前; 转换装置（14）将每个输入光信号转换为具有相应螺旋波阵面的相应光信号，每个螺旋波阵面具有不同的轨道角动量OAM; 光学多路复用装置（16），用于接收来自所述转换装置的每个螺旋波阵面光信号并将所述螺旋波阵面光信号多路复用成OAM多路复用光信号; 以及包括多个输出端（20）的光学解复用装置（18），所述光学解复用装置被设置为：接收所述OAM复用光信号; 将OAM复用光信号解复用为各自具有不同OAM的多个波长复用光信号; 将来自其螺旋波阵面的每个波长多路复用光信号重新转换成相应的平面波前; 并且根据其在重新转换之前所具有的相应OAM将每个平面波前波长复用光信号传送到相应的一个输出端。

2. 发明公开

EP3278476A1 AN INTEGRATED CIRCUIT OPTICAL INTERCONNECT 失效
标题翻译：集成电路光学互连
公开(公告)号：EP3278476A1
公开(公告)日：2018-02-07
申请号：EP15713530.2
申请日：2015-04-02
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： TESTA, Francesco , ROMAGNOLI, Marco , TALLONE, Luigi , ANDRIOLLI, Nicola
IPC分类号： H04B10/80 , G02B6/43 , G02B26/08
CPC分类号： G02B6/125 , G02B6/12002 , G02B6/4214 , G02B6/43 , G02B26/0816 , H04B10/803
摘要： An integrated circuit optical interconnect for connecting a first circuit part arranged to output an optical signal and a second circuit part arranged to receive an optical signal. The integrated circuit optical interconnect comprises a body comprising a glass material. The glass material has embedded therein an optical waveguide arrangement having an input, located at a surface of the body, for coupling to the first circuit part, and an output, located at a surface of the body, for coupling to the second circuit part. The optical waveguide arrangement comprises at least two optical waveguide segments extending in different directions through the glass material and at least one reflecting part arranged between the two optical waveguide segments, for directing an optical signal from one of the optical waveguide segments to the other of the optical waveguide segments. The optical waveguide arrangement is arranged to optically couple the input and the output, whereby an optical signal can pass from the input to the output through the optical waveguide arrangement. There is also provided an integrated circuit module comprising the integrated circuit optical interconnect, and a telecommunications switch comprising the integrated circuit module. There is further provided a method for manufacturing an integrated circuit optical interconnect.

3. 发明公开

EP2540038A1 CONTROL OF TOKEN HOLDING IN MULTI-TOKEN OPTICAL NETWORK 有权
标题翻译：多值光网络中托管控制
公开(公告)号：EP2540038A1
公开(公告)日：2013-01-02
申请号：EP10711059.5
申请日：2010-03-25
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： RAPONI, Pier, Giorgio , ANDRIOLLI, Nicola , CASTOLDI, Piero , PULERI, Marzio
IPC分类号： H04L12/433 , H04Q11/00 , H04J14/02
CPC分类号： H04L47/215 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0213 , H04J14/0221 , H04J14/0257 , H04J14/0267 , H04J14/0269 , H04J14/0275 , H04L12/433 , H04L45/62
摘要： A node (260, 50) for a multi-token optical communications network has optical channels between the node and other nodes, each channel having a token (T1, T2, T3), passed between nodes, to indicate that a corresponding optical channel is available for transmission during a token holding time. The node has a transmitter (280) for transmitting packets over the optical channels, a buffer (170, 270) for queuing packets before transmission, and a transmit controller (170, 290) configured to control the buffer to forward an initial packet or packets from the buffer to the transmitter once a token has been received. The transmit controller determines how much of the token holding time remains after the transmission of the initial packet or packets, and then controls the buffer to forward a further packet according to the remaining token holding time. A maximum packet delay can be reduced where there is asymmetric traffic. A token holding time can be different for different nodes.
摘要翻译：用于多令牌光通信网络的节点（260,50）在节点和其他节点之间具有光信道，每个信道具有在节点之间传递的令牌（T1，T2，T3），以指示对应的光信道是在令牌持有时间期间可用于传输。该节点具有用于在光信道上传输分组的发射器（280），用于在传输之前对分组进行排队的缓冲器（170,270），以及被配置为控制缓冲器以将一个或多个初始分组一旦接收到令牌，就从缓冲区发送到发射机。传输控制器确定在初始分组或多个分组的传输之后剩余多少令牌保持时间，然后根据剩余的令牌保持时间控制缓冲器转发另外的分组。在存在不对称流量的情况下，可以减少最大数据包延迟。对于不同的节点，令牌持有时间可能不同。

4. 发明授权

EP3278476B1 AN INTEGRATED CIRCUIT OPTICAL INTERCONNECT 失效
公开(公告)号：EP3278476B1
公开(公告)日：2018-10-03
申请号：EP15713530.2
申请日：2015-04-02
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： TESTA, Francesco , ROMAGNOLI, Marco , TALLONE, Luigi , ANDRIOLLI, Nicola
IPC分类号： H04B10/80 , G02B6/43 , G02B26/08
CPC分类号： G02B6/125 , G02B6/12002 , G02B6/4214 , G02B6/43 , G02B26/0816 , H04B10/803
摘要： An integrated circuit optical interconnect for connecting a first circuit part arranged to output an optical signal and a second circuit part arranged to receive an optical signal. The integrated circuit optical interconnect comprises a body comprising a glass material. The glass material has embedded therein an optical waveguide arrangement having an input, located at a surface of the body, for coupling to the first circuit part, and an output, located at a surface of the body, for coupling to the second circuit part. The optical waveguide arrangement comprises at least two optical waveguide segments extending in different directions through the glass material and at least one reflecting part arranged between the two optical waveguide segments, for directing an optical signal from one of the optical waveguide segments to the other of the optical waveguide segments. The optical waveguide arrangement is arranged to optically couple the input and the output, whereby an optical signal can pass from the input to the output through the optical waveguide arrangement. There is also provided an integrated circuit module comprising the integrated circuit optical interconnect, and a telecommunications switch comprising the integrated circuit module. There is further provided a method for manufacturing an integrated circuit optical interconnect.

5. 发明授权

EP3036854B1 OPTICAL SWITCHING 有权
公开(公告)号：EP3036854B1
公开(公告)日：2017-10-04
申请号：EP13750879.2
申请日：2013-08-21
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： SCAFFARDI, Mirco , ANDRIOLLI, Nicola , BOGONI, Antonella , CERUTTI, Isabella , CASTOLDI, Piero
IPC分类号： H04J14/04 , H04Q11/00 , H04J14/00
CPC分类号： H04Q11/0005 , H04J14/00 , H04J14/04 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/0028 , H04Q2011/0035
摘要： An optical switch (10) comprising: inputs (12) to receive input optical signals at respective wavelengths and having planar wavefronts; conversion apparatus (14) to convert each input optical signal into a respective optical signal having a respective helical wavefront, each helical wavefront having a different orbital angular momentum, OAM; optical multiplexing apparatus (16) to receive each helical wavefront optical signal from the conversion apparatus and to multiplex the helical wavefront optical signals into an OAM multiplexed optical signal; and optical demultiplexing apparatus (18) comprising a plurality of outputs (20), the optical demultiplexing apparatus arranged to: receive the OAM multiplexed optical signal; demultiplex the OAM multiplexed optical signal into a plurality of wavelength multiplexed optical signals each having a different OAM; reconvert each wavelength multiplexed optical signal from its helical wavefront into a respective planar wavefront; and deliver each planar wavefront wavelength multiplexed optical signal to a respective one of the outputs according to the respective OAM it had before reconversion.

6. 发明授权

EP2540038B1 CONTROL OF TOKEN HOLDING IN MULTI-TOKEN OPTICAL NETWORK 有权
标题翻译：控制令牌DWELL处于ON MULTIPLE基于令牌的光网络
公开(公告)号：EP2540038B1
公开(公告)日：2013-09-11
申请号：EP10711059.5
申请日：2010-03-25
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： RAPONI, Pier, Giorgio , ANDRIOLLI, Nicola , CASTOLDI, Piero , PULERI, Marzio
IPC分类号： H04L12/801 , H04L12/433 , H04Q11/00 , H04J14/02
CPC分类号： H04L47/215 , H04J14/0204 , H04J14/0205 , H04J14/0212 , H04J14/0213 , H04J14/0221 , H04J14/0257 , H04J14/0267 , H04J14/0269 , H04J14/0275 , H04L12/433 , H04L45/62
摘要： A node (260, 50) for a multi-token optical communications network has optical channels between the node and other nodes, each channel having a token (T1, T2, T3), passed between nodes, to indicate that a corresponding optical channel is available for transmission during a token holding time. The node has a transmitter (280) for transmitting packets over the optical channels, a buffer (170, 270) for queuing packets before transmission, and a transmit controller (170, 290) configured to control the buffer to forward an initial packet or packets from the buffer to the transmitter once a token has been received. The transmit controller determines how much of the token holding time remains after the transmission of the initial packet or packets, and then controls the buffer to forward a further packet according to the remaining token holding time. A maximum packet delay can be reduced where there is asymmetric traffic. A token holding time can be different for different nodes.

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