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Add-drop device and cross-connect device for wavelength multiplex signals
Add-drop device and cross-connect device for wavelength multiplex signals
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机译:波长复用信号的分插设备和交叉连接设备
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摘要
According to the invention, in add-drop devices of an optical cross-connect device for wavelength multiplex signals, tributary drop signals to be dropped are pre-selected in the drop branch by means of pre-selection elements. Only these signals are amplified, thus reducing the number and/or power of the optical amplifiers. The tributary drop signals are individually selected by means of drop routing elements and adjustable filters. The add branch is created correspondingly.
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