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    • 9. 发明授权
    • Semiconductor laser device with an integrated light-detecting area
    • 半导体激光器件具有集成的光检测区域
    • US4771434A
    • 1988-09-13
    • US880167
    • 1987-06-30
    • Toshihiko YoshidaHaruhisa TakiguchiShinji KaneiwaSadayoshi Matsui
    • Toshihiko YoshidaHaruhisa TakiguchiShinji KaneiwaSadayoshi Matsui
    • H01S5/00H01S5/026H01S3/19
    • H01S5/0264
    • A semiconductor laser apparatus comprising a laser-oscillating area and a light-detecting area, both of which are formed on a single substrate, wherein said laser-oscillating area and said light-detecting area have a common semiconductor layer with a first polarity disposed on said substrate and a common active layer disposed on said semiconductor layer, and said layer-oscillating area of said laser-oscillating area and/or said light-detecting area has a cladding layer with a second polarity disposed on said active layer, said laser-oscillating area and said light-detecting area being separated by a groove formed from the upper face of said cladding layer to the region below said active layer, and the active layer of said laser-oscillation area being flat while the active layer of said light-detecting area is sloped.
    • 一种半导体激光装置,包括激光振荡区域和光检测区域,两者都形成在单个基板上,其中所述激光振荡区域和所述光检测区域具有第一极性的公共半导体层, 所述衬底和设置在所述半导体层上的公共有源层,并且所述激光振荡区域和/或所述光检测区域的所述层振荡区域具有设置在所述有源层上的具有第二极性的包层, 振荡区域和所述光检测区域由由所述包覆层的上表面形成的沟槽分隔成所述有源层下方的区域,并且所述激光振荡区域的有源层是平坦的, 检测区域倾斜。
    • 10. 发明授权
    • Semiconductor laser device
    • 半导体激光器件
    • US4730329A
    • 1988-03-08
    • US869596
    • 1986-06-02
    • Toshihiko YoshidaHaruhisa TakiguchiShinji KaneiwaSadayoshi Matsui
    • Toshihiko YoshidaHaruhisa TakiguchiShinji KaneiwaSadayoshi Matsui
    • H01S5/00H01S5/062H01S5/22H01S5/223H01S5/227H01S5/24H01S3/18
    • H01S5/227H01S5/0035H01S5/06213H01S5/2206H01S5/2237H01S5/2275H01S5/24
    • A semiconductor laser includes a mesa-striped laser structure. A substrate has layered on it an active layer with a refractive index higher than that of, and with an energy gap smaller than that of the substrate. A first electrode is formed under the substrate. A cladding layer of a conductivity type different than that of the substrate overlays the active layer. A multilayered burying crystal includes, at the sides of the mesa-striped laser structure, successively first, second and third burying layers. The first and third burying layers are of the same conductivity type as the substrate. The second burying layer is of a conductivity type different from that of the substrate. A cap layer of a conductivity type different than the substrate covers the upper face of the mesa-striped structure and an upper face of the third burying layer. A second electrode is formed on the cap layer. Injected current flowing into a thyristor composed of the cap layer and the three burying layers can be suppressed.
    • 半导体激光器包括台面条纹激光器结构。 衬底上层叠有折射率高于衬底的能隙的能隙的活性层。 第一电极形成在衬底下方。 不同于衬底的导电类型的覆层覆盖有源层。 多层埋入晶体在台面条纹激光器结构的两侧包括连续的第一,第二和第三掩埋层。 第一和第三掩埋层具有与衬底相同的导电类型。 第二掩埋层的导电类型与衬底的导电类型不同。 不同于衬底的导电类型的覆盖层覆盖台面状结构的上表面和第三掩埋层的上表面。 在盖层上形成第二电极。 可以抑制流入由盖层和三层埋层构成的晶闸管的注入电流。