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    • 2. 发明申请
    • SEMICONDUCTOR LASER ELEMENT
    • 半导体激光元件
    • US20110211608A1
    • 2011-09-01
    • US12998518
    • 2008-10-31
    • Tsuyoshi FujimotoYumi YamadaYuji YamagataTsuyoshi SaitohManabu Katahira
    • Tsuyoshi FujimotoYumi YamadaYuji YamagataTsuyoshi SaitohManabu Katahira
    • H01S5/34
    • H01S5/20H01S5/2009H01S5/2031H01S5/3213H01S2301/18
    • A semiconductor laser element includes an active layer, an n-type carrier blocking layer arranged so as to be adjacent to the active layer and having a bandgap width that is equal to or greater than those of barrier layers, an n-type waveguide layer arranged on a side opposite to a side of the n-type carrier-blocking layer on which the active layer is arranged, so as to be adjacent to the n-type carrier blocking layer, an n-type clad layer arranged on a side opposite to a side of the n-type waveguide layer on which the active layer is arranged, so as to be adjacent to the n-type waveguide layer, and having a bandgap width that is greater than that of the n-type waveguide layer, and a p-type clad layer arranged on a side opposite to a side of the active layer on which the n-type carrier blocking layer is arranged, so as to be adjacent to the active layer, and having a bandgap width that is greater than those of the barrier layers and the n-type waveguide layer.
    • 半导体激光器元件包括有源层,n型载流子阻挡层,被布置成与有源层相邻并且具有等于或大于阻挡层的带隙宽度的带隙宽度; n型波导层布置 在与其上配置有源层的n型载流子阻挡层的一侧相对的一侧,与n型载流子阻挡层相邻,配置在与n型载流子阻挡层相对的一侧上的n型覆盖层 n型波导层的配置有活性层的一侧,与n型波导层相邻,并且具有比n型波导层的带隙宽度大的带隙宽度, p型覆盖层布置在与有源层的配置有n型载流子阻挡层的一侧相对的一侧上,以与活性层相邻,并且具有大于 阻挡层和n型波导层。