发明名称 |
OPTICAL FIBER FOR OPTICAL ATTENUATOR HAVING FLAT ATTENUATION GAIN |
摘要 |
PURPOSE: An optical fiber for an optical attenuator having a flat attenuation gain is provided, which has a flat attenuation characteristics at an optical signal band by doping a pair of metal ions having light absorption yields of a negative slope and a positive slope into a core of the optical fiber. CONSTITUTION: An optical fiber comprises a cladding layer(12) and a core layer(13). At least more than one component among the first metal ions of Fe, Cr and Mn, whose light absorption characteristics is decreased in a fixed wavelength band, and the second metal ion of a Cobalt(Co) component, whose light absorption characteristics is increased in the fixed wavelength band, are co-doped to the core layer. The second metal ion is formed by mixing a Ni component to the Co component. And an Al component also is co-doped to the core layer.
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申请公布号 |
KR20020064506(A) |
申请公布日期 |
2002.08.09 |
申请号 |
KR20010005024 |
申请日期 |
2001.02.02 |
申请人 |
KWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY;OPTONEST CORPROATION |
发明人 |
HAN, WON TAEK;KIM, JIN HAENG |
分类号 |
G02B6/00;C03B8/04;C03B19/14;C03B37/018;G02B6/02;G02B6/122;G02B6/26;(IPC1-7):G02B6/00 |
主分类号 |
G02B6/00 |
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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