| 发明名称 |
SINGLE MODE OPTICAL FIBER |
| 摘要 |
PURPOSE:To provide a single mode optical fiber resistant to flexion, being free from influences from the impurities contained in outer quartz tube, by making the refractive index at the central portion of the core greater than other portions of the core. |
| 申请公布号 |
JPS5397849(A) |
申请公布日期 |
1978.08.26 |
| 申请号 |
JP19770012684 |
申请日期 |
1977.02.08 |
| 申请人 |
NIPPON TELEGRAPH & TELEPHONE |
发明人 |
KAWANA AKIO;KAWACHI MASAO;HOSAKA TOSHITO;MIYASHITA TADASHI |
| 分类号 |
H01P3/20;G02B6/02;G02B6/036 |
主分类号 |
H01P3/20 |
| 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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