Low threshold current operation of vapour-grown 650 nm-band InGaAsP/InGaP DH lasers

Abstract
InGaAsP/InGaP double heterojunction lasers emitting in the 650 nm band have been fabricated on GaAs0.61P0.39 substrates by hydride vapour-phase epitaxy. By optimising growth conditions and device structure, a threshold current density as low as 5.6 kA/cm2 is obtained, and CW operation is achieved up to −27° C.