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MULTI-STAGE OPTICAL AMPLIFIER OPTIMIZED WITH RESPECT TO NOISE, GAIN AND BANDWIDTH 发明申请

2022-07-31 4970 1108K 0

专利信息

申请日期 2024-11-19 申请号 WOEP03008910
公开(公告)号 WO2005015787A1 公开(公告)日 2005-02-17
公开国别 WO 申请人省市代码 全国
申请人 TELECOM ITALIA S P A
简介 The present invention relates to a multi-stage optical amplifier for a fiber-optic transmission system, in particular to an amplifier having a multi-stage configuration that allows an optimization of its performance with respect to noise, gain and bandwidth. The multi-stage amplifier of the invention comprises a first amplifying stage (2) including a rare-earth doped optical active fiber (5); a second amplifying stage (3) connected to the first amplifying stage (2), the second amplifying stage (3) including a tellurite-based active fiber (10) doped with a rare earth element; and a third amplifying stage (4) connected with the second amplifying stage (3), the third amplifying stage (4) including a silica-based fiber (14; 30).


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