Optically pumped all-epitaxial wafer-fused 1.52 µm vertical-cavity lasers

Abstract
The authors demonstrate for the first time the room-temperature pulsed operation of all-epitaxial vertical cavity lasers operating at 1.52 µm using optical pumping. The laser cavity is formed by bonding an MOCVD-grown InGaAsP/InP mirror to an MBE-grown AIAs/GaAs mirror using the wafer fusion technique.