发明公开
EP1536253A1 Method of manufacturing a branch optical waveguide
审中-公开
Verfahren zur Herstellung eines verzweigten optischen Wellenleiters
- 专利标题: Method of manufacturing a branch optical waveguide
- 专利标题(中): Verfahren zur Herstellung eines verzweigten optischen Wellenleiters
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申请号: EP04255165.5申请日: 2004-08-26
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公开(公告)号: EP1536253A1公开(公告)日: 2005-06-01
- 发明人: Ishikawa, Yoshihiro
- 申请人: Mitsumi Electric Co., Ltd.
- 申请人地址: 2-11-2, Tsurumaki Tama-shi, Tokyo 206-8567 JP
- 专利权人: Mitsumi Electric Co., Ltd.
- 当前专利权人: Mitsumi Electric Co., Ltd.
- 当前专利权人地址: 2-11-2, Tsurumaki Tama-shi, Tokyo 206-8567 JP
- 代理机构: Eddowes, Simon
- 优先权: JP2003397472 20031127
- 主分类号: G02B6/12
- IPC分类号: G02B6/12
摘要:
A method of manufacturing a branch optical waveguide (42) is disclosed. According to the method, a resist pattern (12A) is formed by performing exposure using an exposure mask (22A), and a core (44) is formed by performing etching on a layer (10) of a polymer resin material using the resist pattern (12A) as a mask. As a result, the branch optical waveguide (42) is manufactured. In this method, the exposure mask (22A) includes a main body mask part (22Aa) and first and second branch mask parts (22Ab,22Ac) branching off therefrom at a branch point part (22Ad). The branch point part (22Ad) has a shape where first, second, and third linear edge parts (51,52,53) connect the edge part (22Ab1) of the first branch mask part (22Ab) and the edge part (22Ac1) of the second branch mask part (22Ac) in a trapezoidal, triangular or arc-shaped manner.
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