Coherent high-power arrays of InGaAs/InGaAsP multiquantum-well grating-surface-emitting diode lasers operating at λ=1.5 μm

Abstract

We have demonstrated high-power linear arrays of InGaAs/InGaAsP grating-surface-emitting lasers operating at a wavelength of 1.5 μm and emitting over 200 mW cw and 400 mW pulsed power. Arrays 1 cm in length exhibit coherent, mutual-injection-coupled laser action; single-wavelength-mode operation with a linewidth of 100 MHz at a power output of 55 mW has been observed.