MICROCAVITY ENHANCED VERTICAL-CAVITY LIGHT-EMITTING-DIODES

We systematically studied microcavity enhancement an mode-coupling eff ects in photo- an electroluminescence of an AlGaAs/GaAs vertical-cavit y light-emitting diode (LED) by continuously changing the microcavity resonance with respect to the quantum well band gap. At mode overlap w e obtained maximum photo- and electroluminescence intensities and a mi nimum emitted linewidth of 4.6 nm at 836 nm with a FWHM divergence of 62-degrees. However, the electrical-to-optical efficiency was less tha n 1 muW/mA. Application issues for optical interconnects are presented .