A technology for GaAs-based optoelectronic integrated circuits

The use of a single growth epitaxial structure was investigated for planar integration of GaAs-based laser diodes and photodetectors. Cleaved mirror lasers, non-guided wave and guided wave photodetectors were fabricated and measured, for structure optimization. A BCl/sub 3/ RIE process was developed and lasers with RIE etched mirrors were fabricated exhibiting a threshold current density less than 1 kA/cm/sup 2/.