Structure and method for self-aligned, index-guided, buried heterostructure AlGalnN laser diodes
    9.
    发明授权
    Structure and method for self-aligned, index-guided, buried heterostructure AlGalnN laser diodes 有权
    AlCalnN激光二极管的自对准,折射率引导,掩埋异质结构的结构和方法

    公开(公告)号:US06567443B2

    公开(公告)日:2003-05-20

    申请号:US09408415

    申请日:1999-09-29

    IPC分类号: H01S500

    摘要: A self aligned, index-guided, buried heterostructure AlGalnN laser diode provides improved mode stability and low threshold current when compared to conventional ridge waveguide structures. A short period superlattice is used to allow adequate cladding layer thickness for confinement without cracking. The intensity of the light lost due to leakage is reduced by about 2 orders of magnitude with an accompanying improvement in the far-field radiation pattern when compared to conventional structures. The comparatively large p-contact area allowed by the self-aligned architecture contributes to a lower diode voltage and less heat during continuous wave operation of the laser diode.

    摘要翻译: 与传统的脊波导结构相比,自对准,折射率引导,埋入异质结AlGalnN激光二极管提供了改进的模式稳定性和低阈值电流。 短周期超晶格用于允许足够的包层厚度进行约束而不会开裂。 与常规结构相比,由于泄漏而损失的光的强度降低了约2个数量级,伴随着远场辐射图的改进。 自对准结构允许的较大的p接触面积有助于在激光二极管的连续波动操作期间较低的二极管电压和较少的热量。