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专利名称：Semiconductor optical devices发明人：Alam, Muhammad Ashraful,Eng,
julie,Hybertsen, Mark S.,Johnson, JohnEvan,Ketelsen, Leonard Jan-Peter,People,Roosevelt,Romero, Dennis Mark
申请号：EP01302875.8申请日：20010328公开号：EP1154531A2公开日：20011114
专利附图：
摘要：The invention is a semiconductor optical device and a method of manufacture.
The device (10) includes a first waveguide (15) having an edge (31), and a second
waveguide (12) adjacent to at least a portion of the first waveguide including the edge sothat light is coupled from the first to the second waveguide. The second waveguide has amodal index which is essentially constant at least at the edge of the first waveguide. Themethod includes forming at least the second waveguide by Selective Area Growth (SAG)using oxide pads (61, 62) of a particular geometry to achieve the essentially constantmodal index. In one embodiment, the device is an expanded beam laser with an expanderportion (10b) which is less than 300 microns.
申请人：Agere Systems Optoelectronics Guardian Corporation
地址：9333 South John Young Parkway Orlando, Florida 32819-8698 US
国籍：US
代理机构：Perkins, Sarah
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