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专利名称：Optical switching apparatus and optical
switching method
发明人：Yasuyuki Fukashiro,Tooru Hirai申请号：US09946577申请日：20010905
公开号：US200201911A1公开日：20021219
专利附图：
摘要：An optical switching apparatus includes an optical switch having a plurality ofinput ports and output ports, optical amplifiers, monitor circuits, optical amplifiersmonitor circuits, and a controller that controls the optical switch. The optical amplifiers
are connected to the input ports of the optical switch. The monitor circuits are connectedto the output ports of the optical switch. The controller selects one of the plurality ofthe monitor circuits based on predetermined rules to obtains the loss at the outputports and/or the differential loss between the channels of the optical switch. Thecontroller further selects one of the optical amplifiers based on the configuration of theoptical switch to compensate the loss and the differential loss among the differentchannels of the optical switch by pre-amplifying the optical signals before they reach theinput ports of the optical switch.
申请人：FUKASHIRO YASUYUKI,HIRAI TOORU
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