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    • 1. 发明授权
    • Device for extracting and inserting optical carriers in optical communications networks
    • 用于在光通信网络中提取和插入光载波的装置
    • US06631245B1
    • 2003-10-07
    • US09667672
    • 2000-09-22
    • Giampaolo BendelliLuigi Gastaldi
    • Giampaolo BendelliLuigi Gastaldi
    • H04J1402
    • H04Q11/0005G02B6/2932G02B6/29383H04J14/0212H04J14/0213H04J14/0219H04J14/0291H04Q2011/0022H04Q2011/0035
    • The device, which has a modular structure, makes use of Bragg gratings for selecting, from a wavelength division multiplexed stream, a carrier to be inserted or extracted, and optical circulators for receiving the stream, for extracting and inserting the carriers and for sending the multiplexed stream to the output after the extraction and insertion of the carriers. The grating and the receiving-extracting circulator are located in a structural module which is replicated for all the channels to be extracted and inserted. Each module also has points accessible from the exterior for the connection of a plurality of modules in series, to establish the following for the multiplexed stream: A) a direct path between one input of the module and one input of the receiving and extracting circulator of the module to which it belongs, if this is the only module or is the last of a plurality of modules; B) a second path which passes through the receiving or extracting circulator and the selection means of the subsequent modules, where there is a plurality of modules, and for all the modules except the last. (FIG. 2)
    • 具有模块化结构的装置利用布拉格光栅从波分多路复用流中选择要插入或提取的载波,以及用于接收流的光循环器,用于提取和插入载波并发送 在提取和插入载体之后将多路复用流传输到输出端。 光栅和接收提取循环器位于结构模块中,该结构模块被复制用于要提取和插入的所有通道。 每个模块还具有从外部可访问的点,用于串联连接多个模块,以便为多路复用流建立以下内容:A)模块的一个输入和接收和提取循环器的一个输入之间的直接路径 它所属的模块,如果这是唯一的模块,或者是多个模块的最后一个; B)通过接收或提取循环器的第二路径和后续模块的选择装置,其中存在多个模块,以及除了最后一个模块之外的所有模块。 (图2)