发明名称 |
OPTICAL FIBER AND ITS PRODUCTION METHOD |
摘要 |
PROBLEM TO BE SOLVED: To provide an optical fiber whose conversion efficiency is not lowered by a thermal effect (heat dispersion) and a nonlinear effect and which has optimum absorption characteristics and to provide its producing method. SOLUTION: The optical fiber 1 comprises: a core 2 added with a rare earth element which acts as a gain medium; and a clad 3 formed on the outer periphery of the core 2, wherein the fictive temperature of the core 2 is 1,500°C or lower. COPYRIGHT: (C)2009,JPO&INPIT |
申请公布号 |
JP2008308361(A) |
申请公布日期 |
2008.12.25 |
申请号 |
JP20070157510 |
申请日期 |
2007.06.14 |
申请人 |
HITACHI CABLE LTD;TOYOTA GAKUEN;TOYOTA MOTOR CORP |
发明人 |
HONGO AKISHI;OSONO KAZUMASA;KOJIMA MASATSUGU;YO HEI;SAITO KAZUYA;SATO AKIO;YANAKA KOHEI |
分类号 |
C03B37/027;C03B37/029;H01S3/06 |
主分类号 |
C03B37/027 |
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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