TEMPERATURE AND MODULATION CHARACTERISTICS OF RESONANT-CAVITY LIGHT-EMITTING-DIODES

Resonant-cavity light-emitting diodes (RCLED) are novel, high-efficien cy light-emitting diodes which employ optical microcavities. These dio des have higher intensities and higher spectral purity as compared to conventional LED's, Analytical formulas are derived for the enhancemen t of the spontaneous emission along the optical axis of the cavity, Th e design rules for high-efficiency operation of RCLED's are establishe d, The temperature dependence of the emission intensity is analyzed in the range 20-80 degrees and it is described by an exponential depende nce with a characteristic temperature of 112 K. The modulation charact eristics of RCLED's exhibit 3 dB frequencies of 580 MHz. Eye diagrams at transmission rates of 622 Mb/s are wide open indicating the suitabi lity of RCLED's for high-speed data transmission.