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OPTICAL AMPLIFIER 发明申请

2023-11-08 4890 157K 0

专利信息

申请日期 2025-07-12 申请号 JP2009077154
公开(公告)号 JP2010232345A 公开(公告)日 2010-10-14
公开国别 JP 申请人省市代码 全国
申请人 FUJITSU LTD
简介 PROBLEM TO BE SOLVED : To improve quality of signal light by suppressing PHB. SOLUTION : A first LD 141 outputs first excitation light. A second LD 142 outputs second excitation light. An EDF 113 is doped with a rare-earth element and excited by the first excitation light to amplify input light. An EDF 116 is doped with a rare-earth element and excited by the second LD 142 to amplify the light output from the EDF 113. A ratio between the intensity of the first excitation light and the intensity of the second excitation light is controlled according to the number of signal light beams wavelength-multiplexed in the light input. COPYRIGHT : (C)2011, JPO&INPIT


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