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16 条记录 (耗时 0.022 秒)

    Method and system for optical connection validation
    1.
    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。

    Estimation of external noise in a communication channel
    2.
    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
    3.
    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。

    Make before break optical mesh network element
    7.
    发明授权
    Make before break optical mesh network element 有权
    打破光网状网元

    公开(公告)号：US09077474B2

    公开(公告)日：2015-07-07

    申请号：US13040590

    申请日：2011-03-04

    申请人： David Boertjes ,  Gerard Swinkels

    发明人： David Boertjes ,  Gerard Swinkels

    IPC分类号： H04J14/00 ,  H04J14/02

    CPC分类号： H04J14/0212 ,  H04J14/0204 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0297

    摘要： A network element includes an electronic switch for routing traffic between a plurality of client access ports and a plurality of EO ports, a respective EO interface coupled to each one of the plurality of EO ports; a wavelength selective switch for optically switching optical signals between the EO interfaces and a set of optical transmission fibers; and a control system. The plurality of EO interfaces includes at least one Make Before Break (MBB) EO interface. The control system is operative to reconfigure the network element by identifying an EO interface to be reconfigured. A new optical path is set up through the wavelength selective switch and terminated on the MBB EO interface. The electronic switch is then controlled to re-route a traffic flow traversing the identified EO interface to the MBB EO interface.

    摘要翻译： 网络元件包括用于在多个客户端访问端口和多个EO端口之间路由业务的电子交换机，耦合到多个EO端口中的每一个的相应EO接口; 用于在EO接口和一组光传输光纤之间光学切换光信号的波长选择开关; 和控制系统。 多个EO接口包括至少一个Make Break（休眠前）（MBB）EO接口。 控制系统通过识别要重新配置的EO接口来重新配置网元。 通过波长选择开关建立新的光路，并终止于MBB EO接口。 然后控制电子开关以将通过所识别的EO接口的业务流重新路由到MBB EO接口。

    Shared photonic mesh
    8.
    发明授权
    Shared photonic mesh 有权
    共享光子网格

    公开(公告)号：US08750706B2

    公开(公告)日：2014-06-10

    申请号：US13047411

    申请日：2011-03-14

    申请人： David Boertjes ,  Gerard Swinkels ,  Serge Asselin ,  Ryan Amenta

    发明人： David Boertjes ,  Gerard Swinkels ,  Serge Asselin ,  Ryan Amenta

    IPC分类号： H04J14/00 ,  H04B10/08

    CPC分类号： H04J14/0284 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0227 ,  H04J14/0258 ,  H04J14/0268 ,  H04J14/0291

    摘要： A network element of an optical communications network. The network element comprises an electronic router for forwarding traffic between a set of client access ports and a plurality of I/O ports. A respective EO interface is coupled to each one of the plurality of I/O ports. Each EO interface terminates a respective optical channel. A directionally independent access (DIA) node is configured to selectively route each optical channel between its respective EO interface and a selected one of at least two optical fiber links of the optical communications network.

    摘要翻译： 光通信网络的网元。 网元包括用于在一组客户端接入端口和多个I / O端口之间转发业务的电子路由器。 相应的EO接口耦合到多个I / O端口中的每一个。 每个EO接口终止相应的光通道。 方向性独立访问（DIA）节点被配置为选择性地路由其相应的EO接口和光通信网络的至少两个光纤链路中的所选择的一个之间的每个光信道。