发明名称 |
OPTICAL WAVEGUIDE DEVICES AND METHODS OF FABRICATING THE SAME |
摘要 |
The present invention concerns an optical waveguide device having a structure for effectively suppressing variation in optical characteristics due to temperature change without causing increase in device size, and a fabrication method thereof. The optical waveguide device has a structure in which a first main member having a positive coefficient of linear expansion is fixed to a sub member having a negative coefficient of linear expansion. The first main member is provided with an undercladding, a core functioning as an optical waveguide provided on a plane of the undercladding, and an overcladding provided so as to cover the core between the undercladding and the overcladding. The first main member is made, for example, of a silica glass or silicon based material and the core is doped with a dopant for increasing the refractive index. While covering the whole of at least one major surface of the first main member, the sub member is fixed to the major surface.
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申请公布号 |
CA2346593(A1) |
申请公布日期 |
2001.11.09 |
申请号 |
CA20012346593 |
申请日期 |
2001.05.08 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
IWASHIMA, TORU;SEMURA, SHIGERU;HATTORI, TETSUYA |
分类号 |
G02B6/10;G02B6/122;G02B6/13;G02B6/132;G02B6/30;G02B6/36;(IPC1-7):G02B6/10 |
主分类号 |
G02B6/10 |
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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