Light-emitting diodes with a modulation bandwidth of more than 1 GHz

Abstract

The design principle and the fabrication of high-speed l.e.d.s with a 3dB modulation bandwidth in the gigahertz range is described. The modulation characteristic, radiance and spectrum have been measured. The results demonstrate that these l.e.d.s are suited as light generators in optical transmission systems with a bandwidth in excess of 1 GHz.