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12 条记录 (耗时 0.03 秒)

    Optical device for rearranging wavelength channels
    9.
    发明授权
    Optical device for rearranging wavelength channels 有权
    用于重新布置波长通道的光学装置

    公开(公告)号：US08285144B2

    公开(公告)日：2012-10-09

    申请号：US12847220

    申请日：2010-07-30

    申请人： Hiroaki Yamada ,  Barthelemy Fondeur ,  Jinxi Shen ,  Zi-Wen Dong ,  Domenico Di Mola ,  Jyoti K. Bhardwaj ,  Yimin Hua

    发明人： Hiroaki Yamada ,  Barthelemy Fondeur ,  Jinxi Shen ,  Zi-Wen Dong ,  Domenico Di Mola ,  Jyoti K. Bhardwaj ,  Yimin Hua

    IPC分类号： H04J14/02

    CPC分类号： H04J14/0279 ,  G02B6/12026

    摘要： An optical device for rearranging wavelength channels in an optical network is disclosed. The optical device has a wavelength selective coupler having one input port and a plurality of output ports coupled to a plurality of input ports of an optical grating demultiplexor such as an arrayed waveguide grating. The wavelength channels in each of the input ports are dispersed by the demultiplexor and are directed to a plurality of output ports of the optical grating demultiplexor. As a result, at least one wavelength channel at each of the input ports of the optical grating demultiplexor is coupled into a common output port. The optical device is useful in passive optical networks wherein a same demultiplexor is used for simultaneous multiplexing and demultiplexing of wavelength channels.

    摘要翻译： 公开了一种用于重新布置光网络中的波长信道的光学装置。 该光学器件具有波长选择耦合器，该波长选择耦合器具有耦合到诸如阵列波导光栅的光栅解复用器的多个输入端口的一个输入端口和多个输出端口。 每个输入端口中的波长通道由解复用器分散，并被引导到光栅解复用器的多个输出端口。 结果，光栅解复用器的每个输入端口处的至少一个波长通道耦合到公共输出端口中。 该光学器件在无源光网络中是有用的，其中相同的解复用器用于同时复用和解复用波长信道。

    Characterizing a frequency channel in an optical network
    10.
    发明授权
    Characterizing a frequency channel in an optical network 有权
    表征光网络中的频道

    公开(公告)号：US08731400B2

    公开(公告)日：2014-05-20

    申请号：US13442672

    申请日：2012-04-09

    申请人： Jinxi Shen ,  David R. Walker ,  Leonid Frenkel ,  Yu Zhang ,  Barthelemy Fondeur ,  Vlatko Milinkovic ,  Yimin Hua

    发明人： Jinxi Shen ,  David R. Walker ,  Leonid Frenkel ,  Yu Zhang ,  Barthelemy Fondeur ,  Vlatko Milinkovic ,  Yimin Hua

    IPC分类号： H04B10/08 ,  H04J14/00

    CPC分类号： H04B10/0775

    摘要： A tunable optical filter is configured to take point measurements at a few optical frequencies per frequency channel of a DWDM optical network. The measurement frequencies are shifted by pre-determined amounts relative to the optical frequency channel being characterized. Since the spectral shape of the tunable optical filter is known, the center optical frequency, the modulation bandwidth, and the total optical power of the channel can be obtained from as few as three optical measurements. The center optical frequency and the total optical power can be continuously monitored by providing a tunable filter stage coupled to an interleaver stage, and computing a ratio and a weighted sum the optical signals at the two outputs of the interleaver stage.

    摘要翻译： 可调谐光学滤波器被配置为在DWDM光网络的每个频道上以几个光学频率进行点测量。 测量频率相对于被表征的光频道被移动预定量。 由于可调光滤波器的光谱形状是已知的，所以可以从少至三个光学测量中获得信道的中心光频率，调制带宽和总光功率。 可以通过提供耦合到交织器级的可调滤波器级，并且计算交织器级的两个输出处的光信号的比率和加权和来连续监视中心光频率和总光功率。