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    • 5. 发明公开
    • 평탄한 감쇄이득을 갖는 광감쇄기용 광섬유
    • 具有平坦衰减增益的光纤衰减器的光纤
    • KR1020020064506A
    • 2002-08-09
    • KR1020010005024
    • 2001-02-02
    • (주)옵토네스트광주과학기술원
    • 한원택김진행
    • G02B6/00
    • G02B6/266C03B19/1438C03B37/01838C03B2201/10C03B2201/28C03B2201/31C03B2201/32C03B2201/40G02B6/122
    • 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.
    • 目的:提供一种用于具有平坦衰减增益的光衰减器的光纤,其通过将具有负斜率和正斜率的光吸收产率的一对金属离子掺入到核心中而在光信号频带处具有平坦的衰减特性 的光纤。 构成:光纤包括包覆层(12)和芯层(13)。 在固定波长带中光吸收特性降低的Fe,Cr和Mn的第一金属离子中的至少多于一种成分,以及光吸收特性增加的钴(Co)成分的第二金属离子 固定波长带共同掺杂到核心层。 通过将Ni组分与Co组分混合形成第二金属离子。 并且Al组分也被共掺杂到芯层。