Optical spectral multiplexer for inserting and extracting
    1.
    发明授权
    Optical spectral multiplexer for inserting and extracting 失效
    用于插入和提取的光谱多路复用器

    公开(公告)号:US06262821B1

    公开(公告)日:2001-07-17

    申请号:US09077974

    申请日:1998-06-09

    IPC分类号: H04J1402

    摘要: An extract-and-insert optical wavelength division multiplexer includes a broadcaster (D1) for applying an incoming multiplex signal to N outputs, a combiner-diffuser (D2) for broadcasting the multiplex to be inserted (MI) on N outputs, a first set of N tunable filters (FIT, . . . , FNT) for selecting the carriers of the signals which are to be used for modulating the carriers of the outgoing multiplex (MS), a second set of N tunable filters (F1E, . . . , FNE) for selecting the carriers which are to constitute the extracted multiplex (MT), N wavelength converter devices (CL1, . . . , CLN) suitable for supplying N carriers of the outgoing multiplex (MS), and N two-input, two-output optical switches (SW1, . . . , SWN) enabling each output of the broadcasters (D1, D2) to be selectively connected to the input of a filter of the first set and/or to the input of a filter of the second set, and/or to transmit the carriers of the multiplex to be inserted (MI) to a filter of the first set and/or a filter of the second set. The multiplexer is particularly applicable to optical transmission networks implementing a synchronous digital hierarchy.

    摘要翻译: 提取和插入光波分复用器包括用于将输入复用信号施加到N个输出的广播器(D1),用于在N个输出上广播待插入的多路复用(MI)的组合器扩散器(D2),第一组 用于选择要用于调制输出多路复用(MS)的载波的信号的载波的N个可调滤波器(FIT,...,FNT),第二组N个可调滤波器(F1E,..., ,FNE),用于选择构成提取的多路复用(MT)的载波,适用于提供输出多路复用(MS)的N个载波的N个波长转换器装置(CL1,...,CLN)和N个双输入, 使两个输出光开关(SW1,...,SWN)能够使广播商(D1,D2)的每个输出选择性地连接到第一组的滤波器的输入和/或与 和/或将待插入的多路复用的载波(MI)发送到第一组和/或第二组的滤波器 第二组的过滤器。 复用器特别适用于实现同步数字层级的光传输网络。