发明名称 |
Spot-size transformer, method of producing spot-size transformer and waveguide-embedded optical circuit using spot-size transformer |
摘要 |
The present invention is to provide a spot-size transformer which can transform the beam spot-size in a waveguide separated by a groove and a waveguide-embedded optical circuit using the spot-size transformer. The spot-size transformer according to the present invention comprises a first optical waveguide having a first core and a first cladding covering substantially the whole surface of the first core, a second optical waveguide having a second core provided as an extension of the first cladding and a second cladding, a transition waveguide positioned between the first and second optical waveguides, the transition waveguide having a first core whose width of the extension becomes gradually narrower as it goes toward the second optical waveguide.
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申请公布号 |
US7221826(B2) |
申请公布日期 |
2007.05.22 |
申请号 |
US20030678981 |
申请日期 |
2003.10.03 |
申请人 |
TDK CORPORATION |
发明人 |
HANASHIMA NAOKI;MOCHIDA REIO |
分类号 |
G02B6/26;G02B6/10;G02B6/12;G02B6/122;G02B6/42 |
主分类号 |
G02B6/26 |
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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