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16 条记录 (耗时 0.026 秒)

    Coherent augmented optical add-drop multiplexer
    6.
    发明授权
    Coherent augmented optical add-drop multiplexer 有权
    相干增强光分插复用器

    公开(公告)号：US08958696B2

    公开(公告)日：2015-02-17

    申请号：US13124443

    申请日：2009-10-15

    申请人： David Boertjes ,  Kim B. Roberts ,  Maurice O'Sullivan ,  Giuseppe Bordogna

    发明人： David Boertjes ,  Kim B. Roberts ,  Maurice O'Sullivan ,  Giuseppe Bordogna

    IPC分类号： H04J14/02 ,  H04J14/00 ,  H04Q11/00

    CPC分类号： H04Q11/0005 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q2011/0015 ,  H04Q2011/0016

    摘要： In an Optical Add-Drop Multiplexer, a drop section comprises a Wavelength Selective Switch (WSS) having at least one drop-port, the WSS being operative to couple a respective set of w (where w>1) wavelength channels from a received Wavelength Division Multiplexed (WDM) signal to each drop port. A respective 1:s power splitter is associated with each drop port. Each power splitter supplies the respective set of channels received from its drop port to each one of a corresponding set of coherent receivers. Each coherent receiver operates to receive a selected one of the respective set of channels.

    摘要翻译： 在光插入多路复用器中，丢弃部分包括具有至少一个丢弃端口的波长选择性交换机（WSS），所述WSS可操作以将w（1）个波长信道的相应集合从接收的波长 分路复用（WDM）信号到每个分接口。 相应的1：s功率分配器与每个分接口相关联。 每个功率分配器将从其分支端口接收的相应的一组信道提供给相应的一组相干接收机中的每一个。 每个相干接收器操作以接收相应通道组中的所选择的一个。

    COHERENT AUGMENTED OPTICAL ADD-DROP MULTIPLEXER
    7.
    发明申请
    COHERENT AUGMENTED OPTICAL ADD-DROP MULTIPLEXER 有权
    相邻的增光光学多路复用器

    公开(公告)号：US20110268442A1

    公开(公告)日：2011-11-03

    申请号：US13124443

    申请日：2009-10-15

    申请人： David Boertjes ,  Kim B. Roberts ,  Maurice O'Sullivan ,  Giuseppe Bordogna

    发明人： David Boertjes ,  Kim B. Roberts ,  Maurice O'Sullivan ,  Giuseppe Bordogna

    IPC分类号： H04J14/02

    CPC分类号： H04Q11/0005 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04Q2011/0015 ,  H04Q2011/0016

    摘要： In an Optical Add-Drop Multiplexer, a drop section comprises a Wavelength Selective Switch (WSS) having at least one drop-port, the WSS being operative to couple a respective set of w (where w>1) wavelength channels from a received Wavelength Division Multiplexed (WDM) signal to each drop port. A respective 1:s power splitter is associated with each drop port. Each power splitter supplies the respective set of channels received from its drop port to each one of a corresponding set of coherent receivers. Each coherent receiver operates to receive a selected one of the respective set of channels.

    摘要翻译： 在光插入多路复用器中，丢弃部分包括具有至少一个丢弃端口的波长选择性交换机（WSS），所述WSS可操作以将w（1）个波长信道的相应集合从接收的波长 分路复用（WDM）信号到每个分接口。 相应的1：s功率分配器与每个分接口相关联。 每个功率分配器将从其分支端口接收的相应的一组信道提供给相应的一组相干接收机中的每一个。 每个相干接收器操作以接收相应通道组中的所选择的一个。

    Estimation of external noise in a communication channel
    8.
    发明授权
    Estimation of external noise in a communication channel 有权

    公开(公告)号：US11228383B2

    公开(公告)日：2022-01-18

    申请号：US16721747

    申请日：2019-12-19

    申请人： Andrew D. Shiner ,  David Boertjes ,  Michael Andrew Reimer ,  Maurice O'Sullivan

    发明人： Andrew D. Shiner ,  David Boertjes ,  Michael Andrew Reimer ,  Maurice O'Sullivan

    IPC分类号： H04L1/20 ,  H04B17/336

    摘要： A system configured to perform a method for estimating external noise in a communication channel between a transmitter and a receiver is described. The method comprises obtaining a measurement of effective noise on decoded symbols at the receiver, the decoded symbols comprising noisy versions of symbols conveyed by a communication signal transmitted over the communication channel. The method further comprises storing a representation of a relationship between the effective noise, external noise in the communication channel, and one or more variable parameters. The method further comprises storing applicable values of the variable parameters, wherein each applicable value is associated with current properties of the transmitter or current properties of the receiver or both. The method further comprises calculating an estimate of the external noise in the communication channel using the effective noise, the applicable values of the variable parameters, and the representation of the relationship.

    Concatenated optical spectrum transmission systems and methods
    9.
    发明授权
    Concatenated optical spectrum transmission systems and methods 有权
    串联光谱传输系统及方法

    公开(公告)号：US09197354B2

    公开(公告)日：2015-11-24

    申请号：US13218759

    申请日：2011-08-26

    申请人： David Boertjes ,  Michel Belanger

    发明人： David Boertjes ,  Michel Belanger

    IPC分类号： H04J14/00 ,  H04J14/02

    CPC分类号： H04J14/0257 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q11/0066 ,  H04Q2011/0016 ,  H04Q2011/0086

    摘要： The present disclosure relates to concatenated optical spectrum transmission systems and methods that allocate optical spectrum of groups of channels to reduce or eliminate deadbands or guardbands (i.e., unused optical spectrum) between channels. The concatenated optical spectrum transmission systems and methods include various techniques for using optical spectrum such as over the C-band or any other frequency bands. In particular, the concatenated optical spectrum transmission systems and methods provide a balance between fixed channel systems such as provided for by the International Telecommunication Union (ITU) and a more flexible system enabled by coherent optical detection. In an exemplary embodiment, the concatenated optical spectrum transmission systems and methods may utilize a Wavelength Selective Switch (WSS) and a plurality of moderate Common Mode Rejection Ratio (CMRR) coherent receivers in combination to achieve a concatenated optical spectrum.

    摘要翻译： 本公开涉及连接的光谱传输系统和方法，其分配信道组的光谱以减少或消除信道之间的死区或保护带（即未使用的光谱）。 级联的光谱传输系统和方法包括用于使用诸如C波段或任何其它频带之类的光谱的各种技术。 特别地，级联的光谱传输系统和方法提供了诸如由国际电信联盟（ITU）提供的固定信道系统与通过相干光学检测实现的更灵活的系统之间的平衡。 在示例性实施例中，级联的光谱传输系统和方法可以组合使用波长选择性开关（WSS）和多个中等共模抑制比（CMRR）相干接收机，以实现级联的光谱。

    Method and system for optical connection validation
    10.
    发明授权
    Method and system for optical connection validation 有权
    光连接验证方法与系统

    公开(公告)号：US08509621B2

    公开(公告)日：2013-08-13

    申请号：US13028475

    申请日：2011-02-16

    申请人： David Boertjes ,  Marc Desjardins ,  Choudhury Al Sayeed

    发明人： David Boertjes ,  Marc Desjardins ,  Choudhury Al Sayeed

    IPC分类号： H04J14/02

    CPC分类号： H04J14/0212 ,  H04J14/0209

    摘要： An optical add/drop multiplexer (OADM) having an Add path for adding optical channel signals input through a plurality of Add ports to an outbound dense wavelength division multiplexed (DWDM) signal, and a Drop path for switching selected channels from an inbound DWDM signal to one or more of a plurality of Drop ports. The OADM has a loopback connection between the Add path and the Drop path. The loopback connection couples a selected loopback channel wavelength from the Add path to the Drop path. The physical connection between a transceiver and the OADM can be verified by connecting the transmitter to an Add port of the OADM and the receiver to a Drop port of the OADM. The OADM is controlled to switch the selected loopback channel wavelength in the Drop path to at least one intended drop port to which the receiver should be connected, and the transmitter is controlled to transmit a predetermined test signal using the loopback channel wavelength. Detecting the test signal by the receiver verifies that the receiver is connected to the at least one intended drop port.

    摘要翻译： 具有用于将通过多个添加端口输入的光信道信号添加到出站密集波分复用（DWDM）信号的添加路径的光分插复用器（OADM）以及用于从入站DWDM信号切换所选信道的丢弃路径 到多个Drop端口中的一个或多个。 OADM在添加路径和放置路径之间具有环回连接。 环回连接将选定的环回通道波长从添加路径耦合到放置路径。 收发器和OADM之间的物理连接可以通过将发送器连接到OADM和接收器的Add端口连接到OADM的Drop端口来进行验证。 OADM被控制以将丢弃路径中的选择的环回信道波长切换到接收机应该连接到的至少一个预定的丢弃端口，并且发射机被控制以使用环回信道波长发送预定的测试信号。 由接收机检测测试信号，验证接收机是否连接到至少一个预定的丢弃端口。