专利名称：Optical transmission device, optical
transmission system, and test method foralarm function
发明人：Satoshi Miyazaki申请号：US14264582申请日：20140429公开号：US09647789B2公开日：20170509
专利附图：
摘要：An optical transmission device includes a splitter configured to have at least afirst port, a second port, and a third port that output branched input light, branching
ratios of the first port and the second port being variable, and a controller configured toreduce an optical level of output light from the first port to be monitored and increasean optical level of output light from the second port according to the reduced opticallevel of output light from the first port by controlling the branching ratios.
申请人：FUJITSU LIMITED
地址：Kawasaki-shi, Kanagawa JP
国籍：JP
代理机构：Staas & Halsey LLP
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容