发明名称 |
Optical coupling structure |
摘要 |
<p>An object of this invention is to improve coupling efficiency of a silica optical waveguide having a high relative refractive index difference and a single mode optical fiber. A silica optical waveguide (10) consists of a single mode optical waveguide, and its core (12) is originally a rectangle. A width of the core (12) of the silica optical waveguide (10) is tapered at a predetermined length part (16) connecting to an optical fiber (20). A thickness of the core (12) in the tapered part (16) is constant. <IMAGE> <IMAGE></p> |
申请公布号 |
EP1229363(A2) |
申请公布日期 |
2002.08.07 |
申请号 |
EP20020000882 |
申请日期 |
2002.01.15 |
申请人 |
KDDI SUBMARINE CABLE SYSTEMS INC. |
发明人 |
NISHIMURA, KOSUKE;USAMI, MASASHI;TAKAHASHI, HIDENORI |
分类号 |
G02B6/12;G02B6/122;G02B6/30;(IPC1-7):G02B6/30 |
主分类号 |
G02B6/12 |
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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