KANTENEMITTIERENDER HALBLEITERLASER
    4.
    发明公开
    KANTENEMITTIERENDER HALBLEITERLASER 审中-公开
    边发射半导体激光器

    公开(公告)号:EP2425507A1

    公开(公告)日:2012-03-07

    申请号:EP10714321.6

    申请日:2010-04-22

    IPC分类号: H01S5/20 H01S5/0683

    摘要: The invention relates to an edge-emitting semiconductor laser comprising a semiconductor body (10), which comprises a waveguide region (4), wherein the waveguide region (4) comprises a first waveguide layer (2a), a second waveguide layer (2b), and an active layer (3) arranged between the first waveguide layer (2a) and the second waveguide layer (2b) for producing laser radiation (5), and the waveguide region (4) is arranged between a first cover layer (1a) and a second cover layer (1b) following the waveguide region (4) in the growth direction of the semiconductor body (10). The waveguide region (4) has a thickness (d) of 400 nm or less, and an emission angle of the laser radiation (5) leaving the semiconductor body (10) in a direction parallel to the layer plane of the active layer (3) and the emission angle of the laser radiation (5) leaving the semiconductor body (10) in a direction perpendicular to the layer plane of the active layer (3) differ by less than a factor of 3.