Quantum-dot vertical-cavity surface-emitting laser based on the Purcell effect

A quantum-dot vertical-cavity surface-emitting laser based on a modified Purcell effect is described. It is shown that the quantum-field confinement can greatly improve the modulation response, while arrays of such elements can generate power levels useful for high-speed data communication. The high-speed pulse response allows bias-free operation and makes the microcavity array an attractive replacement for single-aperture vertical-cavity surface-emitting lasers. (C) 1999 American Institute of Physics. [S0003-6951(99)02448-1].