发明名称 |
Silica-based optical wave guide circuit and fabrication method thereof |
摘要 |
A silica-based optical waveguide circuit serves to reduce the time required to production while allowing a spot size converting function to work sufficiently. In a silica-based optical waveguide circuit comprising an input/output waveguide core (13b) formed to be thicker than an waveguide core (13a) and a tapered portion for connecting the input/output waveguide core (13b) and the waveguide core (13a), wherein the waveguide circuit further has a core layer (13) at each side of the input/output waveguide core(13b), a thickness T of the core layer (13) at the side of the input/output waveguide core (13b) is smaller than the thickness H of the input/output waveguide core (13b). <IMAGE> |
申请公布号 |
EP1258753(A3) |
申请公布日期 |
2004.07.28 |
申请号 |
EP20020100486 |
申请日期 |
2002.05.14 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
ITOH, MIKITAKA;SAIDA, TAKASHI;HIDA, YASUHIRO;INOUE, YASUYUKI |
分类号 |
G02B6/12;G02B6/122;G02B6/132 |
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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