发明名称 |
Tellurite glass, optical amplifier and light source |
摘要 |
<p>A tellurite glass as a glass material of optical fiber (104) and optical waveguide has a composition of 0 < Bi2O3≤20 (mole %), 0≤Na2O≤35 (mole %), 0≤ZnO≤35 (mole %), and 55≤TeO2≤90 (mole %). The tellurite glass allows an optical amplifier and a laser device that have broadband and low-noise characteristics. In a splicing structure of non silica-based optical fiber (as a first fiber) (301) and a silica-based optical fiber (as a second fiber) (302), optical axes (301a, 302a) of the first and second optical fibers (301, 302) are held at different anglesθ1 andθ2 (θ1 NOTEQUALθ2) respectively from a vertical axis of a boundary surface between their spliced ends, and a relationship between the anglesθ1 andθ2 satisfies Snell's law represented by an equation of sinθ1 / sinθ2 = n2 / n1 (where n1 is a refractive index of the first optical fiber and n2 is a refractive index of the second optical fiber) at the time of splicing the first and second optical fibers (301, 302). <IMAGE></p> |
申请公布号 |
EP1285891(B1) |
申请公布日期 |
2006.01.25 |
申请号 |
EP20020079425 |
申请日期 |
1998.02.13 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
OHISHI, YASUTAKE;YAMADA, MAKOTO;KANAMORI,TERUTOSHI;MORI, ATSUSHI;ONO, HIROTAKA;SHIMADA,TOSHIYUKI |
分类号 |
C03C3/12;A61F2/06;A61F2/24;C03C3/00;C03C4/00;C03C13/04;G02B6/36;G02B6/38;G09B19/20;H01S3/06;H01S3/067;H01S3/16;H01S3/17;H01S3/23;H04B10/297 |
主分类号 |
C03C3/12 |
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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