STRUCTURE FOR IMPROVING THE MIRROR FACET CLEAVING YIELD OF (Ga,Al,In,B)N LASER DIODES GROWN ON NONPOLAR OR SEMIPOLAR (Ga,Al,In,B)N SUBSTRATES

摘要

A structure for improving the mirror facet cleaving yield of (Ga,Al,In,B)N laser diodes grown on nonpolar or semipolar (Ga,Al,In,B)N substrates. The structure comprises a nonpolar or semipolar (Ga,Al,In,B)N laser diode including a waveguide core that provides sufficient optical confinement for the device's operation in the absence of p-type doped aluminum-containing waveguide cladding layers, and one of more n-type doped aluminum- containing layers that can be used to assist with facet cleaving along a particular crystallographic plane.