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1.发明授权Subchannel photonic routing, switching and protection with simplified upgrades of WDM optical networks 有权子通道光子路由，交换和保护，通过WDM光网络的简化升级公开(公告)号：US09485050B2
公开(公告)日：2016-11-01
申请号：US12961432
申请日：2010-12-06
IPC分类号： H04J14/02 , H04B10/572
CPC分类号： H04J14/0293 , H04B10/0793 , H04B10/572 , H04J14/02 , H04J14/0201 , H04J14/0287 , H04L45/28 , H04L45/50 , H04Q11/0066 , H04Q2011/0081
摘要： The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate respective subcarrier frequencies which represent subchannels of an ITU channel to which client signals can be mapped. In one embodiment, subchannels are polarization interleaved to reduce crosstalk. In another embodiment, polarization multiplexing is used to increase the spectral density. Client circuits can be divided and combined with one another before being mapped, independent of one another, to individual subchannels within and across ITU channels. A crosspoint switch can be used to control the client to subchannel mapping, thereby enabling subchannel protection switching and hitless wavelength switching. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of the client circuits mapped to these subchannels across the nodes of a WDM network.
摘要翻译： 本发明包括用于光WDM通信的新技术，装置和系统。 采用可调谐激光器来产生表示可以映射客户端信号的ITU信道的子信道的各个副载波频率。 在一个实施例中，子信道被极化交织以减少串扰。 在另一个实施例中，使用偏振复用来增加频谱密度。 客户端电路可以彼此独立地映射到ITU信道内和跨国际电联信道的各个子信道之间相互划分和组合。 可以使用交叉点开关来控制客户端到子通道映射，从而实现子通道保护切换和无中断波长切换。 公开了网络架构和子信道应答器，复用应答器和交叉应答器，并且采用技术（在子信道级/层），以便于映射到这些子信道上的这些子信道的客户端电路的期望的光路由，交换，级联和保护 WDM网络。
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公开(公告)号：US20110158658A1
公开(公告)日：2011-06-30
申请号：US12961441
申请日：2010-12-06
IPC分类号： H04B10/06
CPC分类号： H04J14/0293 , H04B10/0793 , H04B10/572 , H04J14/02 , H04J14/0201 , H04J14/0287 , H04L45/28 , H04L45/50 , H04Q11/0066 , H04Q2011/0081
摘要： The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate respective subcarrier frequencies which represent subchannels of an ITU channel to which client signals can be mapped. In one embodiment, subchannels are polarization interleaved to reduce crosstalk. In another embodiment, polarization multiplexing is used to increase the spectral density. Client circuits can be divided and combined with one another before being mapped, independent of one another, to individual subchannels within and across ITU channels. A crosspoint switch can be used to control the client to subchannel mapping, thereby enabling subchannel protection switching and hitless wavelength switching. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of the client circuits mapped to these subchannels across the nodes of a WDM network.
摘要翻译： 本发明包括用于光WDM通信的新技术，装置和系统。 采用可调谐激光器来产生表示可以映射客户端信号的ITU信道的子信道的各个副载波频率。 在一个实施例中，子信道被极化交织以减少串扰。 在另一个实施例中，使用偏振复用来增加频谱密度。 客户端电路可以彼此独立地映射到ITU信道内和跨国际电联信道的各个子信道之间相互划分和组合。 可以使用交叉点开关来控制客户端到子通道映射，从而实现子通道保护切换和无中断波长切换。 公开了网络架构和子信道应答器，复用应答器和交叉应答器，并且采用技术（在子信道级/层），以便于映射到这些子信道上的这些子信道的客户端电路的期望的光路由，交换，级联和保护 WDM网络。
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3.发明申请MINIMIZING BANDWIDTH NARROWING PENALTIES IN A WAVELENGTH SELECTIVE SWITCH OPTICAL NETWORK 审中-公开在波长选择开关光网络中最小化带宽微调公开(公告)号：US20150381304A1
公开(公告)日：2015-12-31
申请号：US14720362
申请日：2015-05-22
CPC分类号： H04J14/0212 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0209 , H04J14/0256 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0086
摘要： This invention relates to provisioning wavelength-selective switches and reconfigurable optical add-drop multiplexers to minimize the bandwidth narrowing effect from the optical filters. Novel architectures and methods are disclosed that can significantly reduce bandwidth-narrowing on channels in a reconfigurable WDM network where a large number of optical filter elements are cascaded. Instead of blocking unused channels as in the prior art, unused channels are selectively provisioned depending on the state of their adjacent channels. Unused adjacent channels of an active channel are provisioned to follow the same path as the active channels. As each channels is deployed, the channel frequency is selected so as to minimize bandwidth narrowing.
摘要翻译： 本发明涉及供应波长选择性开关和可重新配置的光分插复用器，以最小化来自滤光器的带宽变窄效应。 公开了新颖的架构和方法，其可以显着减少在可重新配置的WDM网络中的通道上的带宽变窄，其中大量的滤光器元件被级联。 代替如现有技术那样阻塞未使用的信道，根据其相邻信道的状态来选择性地提供未使用的信道。 有源信道的未使用的相邻信道被提供以跟踪与有效信道相同的路径。 随着每个通道的部署，选择通道频率以最小化带宽变窄。
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公开(公告)号：US20110158642A1
公开(公告)日：2011-06-30
申请号：US12961439
申请日：2010-12-06
CPC分类号： H04J14/0293 , H04B10/0793 , H04B10/572 , H04J14/02 , H04J14/0201 , H04J14/0287 , H04L45/28 , H04L45/50 , H04Q11/0066 , H04Q2011/0081
摘要： The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate respective subcarrier frequencies which represent subchannels of an ITU channel to which client signals can be mapped. In one embodiment, subchannels are polarization interleaved to reduce crosstalk. In another embodiment, polarization multiplexing is used to increase the spectral density. Client circuits can be divided and combined with one another before being mapped, independent of one another, to individual subchannels within and across ITU channels. A crosspoint switch can be used to control the client to subchannel mapping, thereby enabling subchannel protection switching and hitless wavelength switching. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of the client circuits mapped to these subchannels across the nodes of a WDM network.
摘要翻译： 本发明包括用于光WDM通信的新技术，装置和系统。 采用可调谐激光器来产生表示可以映射客户端信号的ITU信道的子信道的各个副载波频率。 在一个实施例中，子信道被极化交织以减少串扰。 在另一个实施例中，使用偏振复用来增加频谱密度。 客户端电路可以彼此独立地映射到ITU信道内和跨国际电联信道的各个子信道之间相互划分和组合。 可以使用交叉点开关来控制客户端到子通道映射，从而实现子通道保护切换和无中断波长切换。 公开了网络架构和子信道应答器，复用应答器和交叉应答器，并且采用技术（在子信道级/层），以便于映射到这些子信道上的这些子信道的客户端电路的期望的光路由，交换，级联和保护 WDM网络。
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公开(公告)号：US20110135305A1
公开(公告)日：2011-06-09
申请号：US12961436
申请日：2010-12-06
IPC分类号： H04J14/02
CPC分类号： H04J14/0293 , H04B10/0793 , H04B10/572 , H04J14/02 , H04J14/0201 , H04J14/0287 , H04L45/28 , H04L45/50 , H04Q11/0066 , H04Q2011/0081
摘要： The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate subcarrier frequencies representing subchannels of an ITU channel to which client signals can be mapped. Client circuits can be divided and combined before being mapped, independent of one another, to individual subchannels within and across ITU channels. Subchannels may be independently routed to a single subchannel receiver filter, such that each subchannel detected at the receiver may come from a different source location. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of client circuits mapped to these subchannels across the nodes of a WDM network. Subchannel hopping may also be used to increase the optical network security.
摘要翻译： 本发明包括用于光WDM通信的新技术，装置和系统。 采用可调谐激光器来产生代表可以映射客户端信号的ITU信道的子信道的副载波频率。 在映射之前，客户端电路可以彼此独立地分割和组合到ITU信道内和各个ITU信道中的各个子信道。 子信道可以被独立地路由到单个子信道接收机过滤器，使得在接收机处检测到的每个子信道可以来自不同的源位置。 公开了网络架构和子信道转发器，复用应答器和交叉应答器，并且采用技术（在子信道级/层），以促进映射到WDM的节点上的这些子信道的客户端电路的期望的光路由，交换，级联和保护 网络。 也可以使用子信道跳频来增加光网络的安全性。
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公开(公告)号：US6115157A
公开(公告)日：2000-09-05
申请号：US997822
申请日：1997-12-24
申请人： Chris Wilhelm Barnard , Chung Yu Wu
发明人： Chris Wilhelm Barnard , Chung Yu Wu
CPC分类号： H04J14/0221 , H04J14/0201 , H04J2203/006
摘要： A method of equalizing the channels of a WDM link comprises identifying an error threshold level BER.sub.Fail for the BER defined for each signal S(j) in accordance with the channel rate, and determining the attenuation A(j) of, for example, the power P(j) of each signal S(j) transmitted over the WDM link. The transmitter powers are adjusted taking into account the attenuations determined for all channels. The attenuation A(j) for channel (j) is determined by first setting the power P(j) of all signals S(j) to a maximum P.sub.Max, attenuating the power P(j) of channel (j) until the BER reaches the threshold value BER.sub.Fail, measuring the power corresponding to the BER.sub.Fail for that channel, and calculating the difference between the P.sub.Max and P(j).sub.Fail. The transmitter powers are then set according to the relationship P(j)=P.sub.Max -.eta.(A(j)-A.sub.Min), where .eta. is 0.8 for a system with 3-4 channels. The method may be used for multi-channel systems with intermediate nodes where channels are added and dropped.
摘要翻译： 一种均衡WDM链路的信道的方法包括根据信道速率识别为每个信号S（j）定义的BER的误差阈值级别BERFail，并且确定例如功率的衰减A（j） 通过WDM链路发送的每个信号S（j）的P（j）。 考虑到为所有通道确定的衰减，调整发射机功率。 通过首先将所有信号S（j）的功率P（j）设置为最大值PMax来确定信道（j）的衰减A（j），衰减信道（j）的功率P（j）直到BER达到 阈值BERFail，测量与该通道的BERFail相对应的功率，并计算PMax与P（j）失败之间的差值。 然后根据P（j）= PMax-（a（j）-AMin）的关系设置发射机功率，对于具有3-4个信道的系统，其中eta为0.8。 该方法可以用于具有添加和丢弃信道的中间节点的多信道系统。
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公开(公告)号：US09054832B2
公开(公告)日：2015-06-09
申请号：US12961439
申请日：2010-12-06
IPC分类号： H04B10/079 , H04J14/02 , H04B10/572
CPC分类号： H04J14/0293 , H04B10/0793 , H04B10/572 , H04J14/02 , H04J14/0201 , H04J14/0287 , H04L45/28 , H04L45/50 , H04Q11/0066 , H04Q2011/0081
摘要： The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate respective subcarrier frequencies which represent subchannels of an ITU channel to which client signals can be mapped. In one embodiment, subchannels are polarization interleaved to reduce crosstalk. In another embodiment, polarization multiplexing is used to increase the spectral density. Client circuits can be divided and combined with one another before being mapped, independent of one another, to individual subchannels within and across ITU channels. A crosspoint switch can be used to control the client to subchannel mapping, thereby enabling subchannel protection switching and hitless wavelength switching. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of the client circuits mapped to these subchannels across the nodes of a WDM network.
摘要翻译： 本发明包括用于光WDM通信的新技术，装置和系统。 采用可调谐激光器来产生表示可以映射客户端信号的ITU信道的子信道的各个副载波频率。 在一个实施例中，子信道被极化交织以减少串扰。 在另一个实施例中，使用偏振复用来增加频谱密度。 客户端电路可以彼此独立地映射到ITU信道内和跨国际电联信道的各个子信道之间相互划分和组合。 可以使用交叉点开关来控制客户端到子通道映射，从而实现子通道保护切换和无中断波长切换。 公开了网络架构和子信道应答器，复用应答器和交叉应答器，并且采用技术（在子信道级/层），以便于映射到这些子信道上的这些子信道的客户端电路的期望的光路由，交换，级联和保护 WDM网络。
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公开(公告)号：US08744262B2
公开(公告)日：2014-06-03
申请号：US12961436
申请日：2010-12-06
IPC分类号： H04J14/02
CPC分类号： H04J14/0293 , H04B10/0793 , H04B10/572 , H04J14/02 , H04J14/0201 , H04J14/0287 , H04L45/28 , H04L45/50 , H04Q11/0066 , H04Q2011/0081
摘要： The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate subcarrier frequencies representing subchannels of an ITU channel to which client signals can be mapped. Client circuits can be divided and combined before being mapped, independent of one another, to individual subchannels within and across ITU channels. Subchannels may be independently routed to a single subchannel receiver filter, such that each subchannel detected at the receiver may come from a different source location. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of client circuits mapped to these subchannels across the nodes of a WDM network. Subchannel hopping may also be used to increase the optical network security.
摘要翻译： 本发明包括用于光WDM通信的新技术，装置和系统。 采用可调谐激光器来产生代表可以映射客户端信号的ITU信道的子信道的副载波频率。 在映射之前，客户端电路可以彼此独立地分割和组合到ITU信道内和各个ITU信道中的各个子信道。 子信道可以被独立地路由到单个子信道接收机过滤器，使得在接收机处检测到的每个子信道可以来自不同的源位置。 公开了网络架构和子信道转发器，复用应答器和交叉应答器，并且采用技术（在子信道级/层），以促进映射到WDM的节点上的这些子信道的客户端电路的期望的光路由，交换，级联和保护 网络。 也可以使用子信道跳频来增加光网络的安全性。
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9.发明授权Minimizing bandwidth narrowing penalties in a wavelength selective switch optical network 有权最大限度地减少波长选择开关光网络中的带宽变窄公开(公告)号：US08542999B2
公开(公告)日：2013-09-24
申请号：US13019255
申请日：2011-02-01
CPC分类号： H04J14/0212 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0209 , H04J14/0256 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0009 , H04Q2011/0016 , H04Q2011/0086
摘要： This invention relates to provisioning wavelength-selective switches and reconfigurable optical add-drop multiplexers to minimize the bandwidth narrowing effect from the optical filters. Novel architectures and methods are disclosed that can significantly reduce bandwidth-narrowing on channels in a reconfigurable WDM network where a large number of optical filter elements are cascaded. Instead of blocking unused channels as in the prior art, unused channels are selectively provisioned depending on the state of their adjacent channels. Unused adjacent channels of an active channel are provisioned to follow the same path as the active channels. As each channels is deployed, the channel frequency is selected so as to minimize bandwidth narrowing.
摘要翻译： 本发明涉及供应波长选择性开关和可重新配置的光分插复用器，以最小化来自滤光器的带宽变窄效应。 公开了新颖的架构和方法，其可以显着减少在可重新配置的WDM网络中的通道上的带宽变窄，其中大量的滤光器元件被级联。 代替如现有技术那样阻塞未使用的信道，根据其相邻信道的状态来选择性地提供未使用的信道。 有源信道的未使用的相邻信道被提供以跟踪与有效信道相同的路径。 随着每个通道的部署，选择通道频率以最小化带宽变窄。
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10.发明申请Subchannel Photonic Routing, Switching and Protection with Simplified Upgrades of WDM Optical Networks 有权子信道光子路由，交换和保护与WDM光网络的简化升级公开(公告)号：US20110158641A1
公开(公告)日：2011-06-30
申请号：US12961432
申请日：2010-12-06
CPC分类号： H04J14/0293 , H04B10/0793 , H04B10/572 , H04J14/02 , H04J14/0201 , H04J14/0287 , H04L45/28 , H04L45/50 , H04Q11/0066 , H04Q2011/0081
摘要： The present invention includes novel techniques, apparatus, and systems for optical WDM communications. Tunable lasers are employed to generate respective subcarrier frequencies which represent subchannels of an ITU channel to which client signals can be mapped. In one embodiment, subchannels are polarization interleaved to reduce crosstalk. In another embodiment, polarization multiplexing is used to increase the spectral density. Client circuits can be divided and combined with one another before being mapped, independent of one another, to individual subchannels within and across ITU channels. A crosspoint switch can be used to control the client to subchannel mapping, thereby enabling subchannel protection switching and hitless wavelength switching. Network architectures and subchannel transponders, muxponders and crossponders are disclosed, and techniques are employed (at the subchannel level/layer), to facilitate the desired optical routing, switching, concatenation and protection of the client circuits mapped to these subchannels across the nodes of a WDM network.
摘要翻译： 本发明包括用于光WDM通信的新技术，装置和系统。 采用可调谐激光器来产生表示可以映射客户端信号的ITU信道的子信道的各个副载波频率。 在一个实施例中，子信道被极化交织以减少串扰。 在另一个实施例中，使用偏振复用来增加频谱密度。 客户端电路可以彼此独立地映射到ITU信道内和跨国际电联信道的各个子信道之间相互划分和组合。 可以使用交叉点开关来控制客户端到子通道映射，从而实现子通道保护切换和无中断波长切换。 公开了网络架构和子信道应答器，复用应答器和交叉应答器，并且采用技术（在子信道级/层），以便于映射到这些子信道上的这些子信道的客户端电路的期望的光路由，交换，级联和保护 WDM网络。
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