Narrow-stripe injection lasers in GaInAsP/InP

Results are reported on CW and pulsed operation of GaInAsP/InP narrow-stripe (3 μm) injection lasers emitting at the 1.3 μm wavelength. These lasers operate with linear light-current characteristics, stable zeroth-order transverse mode, and no transient oscillations. Their far-field emission pattern in the plane parallel to the junction is double peaked and their spectral emission is multimode.