Method and apparatus including improved vertical-cavity surface-emitting lasers
    1.
    发明授权
    Method and apparatus including improved vertical-cavity surface-emitting lasers 有权
    包括改进的垂直腔表面发射激光器的方法和装置

    公开(公告)号:US09088134B2

    公开(公告)日:2015-07-21

    申请号:US13559821

    申请日:2012-07-27

    IPC分类号: H01S5/183 H01S5/20

    摘要: VCSELs and methods having improved characteristics. In some embodiments, these include a semiconductor substrate; a vertical-cavity surface-emitting laser (VCSEL) on the substrate; a first electrical contact formed on the VCSEL; a second electrical contact formed on the substrate, wherein the VCSEL includes: a first resonating cavity having first and second mirrors, at least one of which partially transmits light incident on that mirror, wherein the first second mirrors are electrically conductive. A first layer is between the first mirror and the second mirror and has a first aperture that restricts the path of current flow. A second layer is between the first layer and the second mirror and also restricts the electrical current path. A multiple-quantum-well (MQW) structure is between the first mirror and the second mirror, wherein the first and second apertures act together to define a path geometry of the current through the MQW structure.

    摘要翻译: 具有改进特性的VCSEL和方法。 在一些实施例中,这些包括半导体衬底; 衬底上的垂直腔表面发射激光器(VCSEL); 在VCSEL上形成的第一电接触; 形成在所述基板上的第二电触点,其中所述VCSEL包括:具有第一和第二反射镜的第一谐振腔,其中至少一个部分透射入射在所述反射镜上的光,其中所述第一第二反射镜是导电的。 第一层位于第一反射镜和第二反射镜之间,并且具有限制电流流动路径的第一孔。 第二层位于第一层和第二层之间,也限制了电流路径。 多量子阱(MQW)结构在第一反射镜和第二反射镜之间,其中第一和第二孔一起作用以限定通过MQW结构的电流的路径几何形状。