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.
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