Top emitting VCSEL with implant
    81.
    发明授权
    Top emitting VCSEL with implant 失效
    顶部用植入物发射VCSEL

    公开(公告)号:US5256596A

    公开(公告)日:1993-10-26

    申请号:US857877

    申请日:1992-03-26

    CPC分类号: H01S5/18308 H01S5/2063

    摘要: VCSELs including a central active layer with upper and lower mirror stacks wherein a circular trench is formed in one mirror stack to define a lasing area. The trench reduces reflectivity to prevent lasing outside the operating area and a deep beryllium implant in either of the mirror stacks, along with the trench, confines current distribution to maximize power output and efficiency. A transparent metal contact is used as a top contact in one embodiment.

    摘要翻译: VCSEL包括具有上反射镜和下反射镜叠层的中心活性层,其中在一个反射镜叠层中形成圆形沟槽以限定激光区域。 沟槽减少了反射率,以防止在工作区域外发生激光,并且任何一个反射镜堆叠中的深铍植入物与沟槽一起限制电流分布以最大化功率输出和效率。 在一个实施例中,透明金属接触件用作顶部接触件。