Av. Krishnamoorthy et al., RING OSCILLATORS WITH OPTICAL AND ELECTRICAL READOUT BASED ON HYBRID GAAS MQW MODULATORS BONDED TO 0.8-MU-M SILICON VLSI CIRCUITS, Electronics Letters, 31(22), 1995, pp. 1917-1918
Loaded and unloaded ring-oscillator circuits with an electrical and su
rface-normal 850 nm optical readout are fabricated using a hybrid 0.8
mu m silicon-CMOS/GaAs-AlGaAs MQW process. Measurements of the oscilla
tion frequency of these circuits show total capacitance associated wit
h the flip-chip-bonded optical MQW modulators as low as 52fF.