发明名称 |
Reduction of Truncation loss of a tapered active waveguide |
摘要 |
A semiconductor optical device comprises an active waveguide having a tapered portion, and a passive waveguide extending beyond the end of the active waveguide and optically coupled to the tapered portion of the active waveguide. The passive waveguide beyond the end of the active waveguide supports an optical mode of larger size than the optical mode supported by the active waveguide. The tapered portion of the active waveguide is truncated and the separation between the active waveguide and the passive waveguide is greater than in previously known devices in order to minimize or at least reduce the truncation loss at the truncation.
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申请公布号 |
US2004062485(A1) |
申请公布日期 |
2004.04.01 |
申请号 |
US20030601004 |
申请日期 |
2003.06.19 |
申请人 |
KAMELIAN LIMITED, A CORPORATION OF THE UNITED KINGDOM |
发明人 |
KELLY ANTHONY EDWARD;WOODGATE GRAHAM JOHN |
分类号 |
G02B6/122;H01S5/10;H01S5/50;(IPC1-7):G02B6/26 |
主分类号 |
G02B6/122 |
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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