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    • 4. 发明授权
    • Semiconductor laser
    • 半导体激光器
    • US06807212B2
    • 2004-10-19
    • US10283133
    • 2002-10-30
    • Mauro BettiatiChristophe StarckStéphane Lovisa
    • Mauro BettiatiChristophe StarckStéphane Lovisa
    • H01S500
    • B82Y20/00H01S5/20H01S5/2004H01S5/305H01S5/3409H01S5/3432H01S2301/18
    • The present invention provides a vertical structure semiconductor laser comprising bottom and top cladding layers (1, 2), a light guide (G) superposed on the bottom cladding layer, and a semiconductor active layer (CA). In the invention, the light guide (G) further comprises: a semiconductor bottom guide layer (11) having the following two adjacent bottom parts: an undoped first bottom part (11a) adjacent the central region, and an n-type doped second bottom part (11b) adjacent the bottom cladding layer, a semiconductor top guide layer (12) having the following two adjacent top parts: an undoped first top part (12a) adjacent the central region, and a p-type doped second top part (12b) adjacent the top cladding layer. The first bottom and top parts form a non-doped region (ND) more than 0.5 &mgr;m thick, and the refractive index difference (&Dgr;nopt) between one or each of the cladding layers and the adjacent guide layer is less than 0.02.
    • 本发明提供了一种垂直结构半导体激光器,其包括叠层在底部包层上的底部和顶部覆层(1,2),导光体(G)和半导体活性层(CA)。 在本发明中,导光体(G)还包括:具有以下两个相邻底部的半导体底部引导层(11):邻近中心区域的未掺杂的第一底部部分(11a),以及n型掺杂的第二底部部分 (11b),具有以下两个相邻顶部的半导体顶部引导层(12):邻近所述中心区域的未掺杂的第一顶部部分(12a)和相邻的p型掺杂的第二顶部部分(12b) 第一底部和顶部形成大于0.5μm厚的非掺杂区域(ND),并且一个或每个包覆层和相邻引导层之间的折射率差(Deltanopt)小于 0.02。