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US5915051A Wavelength-selective optical add/drop switch 失效
标题翻译：波长选择性光分插开关
公开(公告)号：US5915051A
公开(公告)日：1999-06-22
申请号：US792916
申请日：1997-01-21
申请人： Jay N. Damask , Thomas E. Murphy , Juan Ferrera , Michael Hong Yeol Lim , Henry I. Smith , Hermann A. Haus
发明人： Jay N. Damask , Thomas E. Murphy , Juan Ferrera , Michael Hong Yeol Lim , Henry I. Smith , Hermann A. Haus
IPC分类号： G02B6/12 , G02F1/313 , G08B6/28
CPC分类号： G02B6/12007 , G02F1/3136 , G02B2006/12107 , G02B2006/12173
摘要： A wavelength-selective optical switch having a first input port for accepting a plurality of copropagating optical channels, each of the channels having a distinct wavelength band. The optical switch includes first and second output ports. A wavelength-selective optical filter is connected to receive the copropagating optical channels from the first input port to extract a selected one of the channels while allowing the remaining channels to copropagate to the first output port. An interferometric switch is connected to receive the selected extracted channel; the interferometric switch includes a controller for controlling propagation of the selected extracted channel to either the second output port, the optical filter, or both. The optical filter is connected to receive from the interferometric switch an optical channel to be combined with the remaining copropagating channels and all directed to the first output port. In a first control state of the controller, the interferometric switch is adapted to direct the selected extracted channel to the optical filter, while in a second control state of the controller, the interferometric switch is adapted to direct the selected extracted channel to the second output port. A second input port can be provided for accepting an injected optical channel having a wavelength band corresponding to the wavelength band of the selected extracted channel. This second input port is connected to direct the injected optical channel to the interferometric switch. In this scenario, the interferometric switch is adapted, in the second control state of the controller, to direct the injected channel to the optical filter, and is adapted to direct the injected channel, in a first control state of the controller, to the second output port.
摘要翻译：一种波长选择性光开关，具有用于接收多个共传播光信道的第一输入端口，每个信道具有不同的波段。光开关包括第一和第二输出端口。连接波长选择性滤光器以从第一输入端口接收共同传播的光通道，以提取所选择的一个通道，同时允许其余通道共同传播到第一输出端口。连接干涉式开关以接收所选择的提取的通道; 干涉式开关包括控制器，用于控制所选择的提取的通道到第二输出端口，滤光器或两者的传播。光滤波器被连接以从干涉式开关接收要与剩余的共同传播信道组合的光信道，并且全部被引导到第一输出端口。在控制器的第一控制状态下，干涉式开关适于将所选择的提取的通道引导到滤光器，而在控制器的第二控制状态下，干涉式开关适于将所选择的提取的通道引导至第二输出港口。可以提供第二输入端口用于接受具有与所选择的提取的信道的波长带相对应的波长带的注入光信道。该第二输入端口被连接以将注入的光通道引导到干涉式开关。在这种情况下，在控制器的第二控制状态下，干涉式开关适应于将注入的通道引导到滤光器，并且适于在控制器的第一控制状态下将注入的通道引导到第二输出端口

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