发明名称 |
Optical device with composite passive and tapered active waveguide regions |
摘要 |
A semiconductor optical device, for example a laser, has a composite optical waveguide including a tapered, MQW active waveguide in optical contact with a substantially planar, passive waveguide. The fundamental optical mode supported by the composite waveguide varies along the length of the composite waveguide so that, in a laser, the laser mode is enlarged and is a better match to single mode optical fiber. A method for making such semiconductor optical devices is also disclosed.
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申请公布号 |
US5844929(A) |
申请公布日期 |
1998.12.01 |
申请号 |
US19960700925 |
申请日期 |
1996.08.23 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
LEALMAN, IAN F.;ROBERTSON, MICHAEL J.;PERRIN, SIMON D. |
分类号 |
G02B6/12;G02B6/30;G02B6/42;H01S3/05;H01S5/026;H01S5/10;H01S5/16;H01S5/22;H01S5/227;H01S5/34;H01S5/343;(IPC1-7):H01S3/19 |
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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