发明名称 |
Semiconductor laser device |
摘要 |
A real index guided semiconductor laser device includes an optical waveguide layer at least on one side of an active layer that has a band gap energy not less than that of the active layer; a cladding layer on an outer side of the optical waveguide layer that has a band gap energy not less than that of the optical waveguide layer; a refractive index control layer having a striped window, buried in the optical waveguide layer by selective growth; and a semiconductor layer formed in the optical waveguide layer by selective growth prior to the selective growth of the refractive index control layer. In a laminated portion including the semiconductor layer and the refractive index control layer, a change in effective refractive index due to a change in thickness of the semiconductor layer is smaller than that of the refractive index control layer.
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申请公布号 |
US6717186(B2) |
申请公布日期 |
2004.04.06 |
申请号 |
US20020230988 |
申请日期 |
2002.08.30 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
FUJIMOTO TSUYOSHI;MURO KIYOFUMI;KOISO TAKESHI |
分类号 |
H01S5/20;H01S5/22;H01S5/223;(IPC1-7):H01L33/00 |
主分类号 |
H01S5/20 |
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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