发明名称 |
Optical amplification module |
摘要 |
<p>The present invention relates to an optical amplifier and the like having a flatter gain spectrum in the wavelength band of 1490 nm to 1520 nm than before. The optical amplifier according to the present invention comprises an Er-doped optical waveguide and a Tm-doped optical waveguide having gain spectra difference from each other in the wavelength band. The signal light entered through the input end is first amplified by the Er-doped optical waveguide, and thereafter is amplified by the Tm-doped optical waveguide. The gain deviation of the amplified signal light, which has been amplified in the Er- and Tm-doped optical waveguides and outputted through the output end, can be reduced over the wavelength band.</p> |
申请公布号 |
EP1355392(A3) |
申请公布日期 |
2006.04.26 |
申请号 |
EP20030251324 |
申请日期 |
2003.03.05 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
KAKUI, MOTOKI,;KINUGASA, JUN, |
分类号 |
H01S3/16;H01S3/067;H01S3/10;H01S3/102;H01S3/131;H01S3/23 |
主分类号 |
H01S3/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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