Visible GaAlAs V-channeled substrate inner stripe laser with stabilized mode using p-GaAs substrate

Abstract

A new visible laser, the V channeled substrate inner stripe laser, is developed. This laser can internally confine the current into the V‐channel by using a thin n‐GaAs layer grown on the p‐GaAs substrate. cw threshold currents were 35–45 mA in the visible spectral range of 770–790 nm. And highly stable transverse and single longitudinal mode operation were observed because the built‐in optical waveguide was formed within the V channel.