A scalable optoelectronic neural system using free-space optical interconnects
Ashok V. Krishnamoorthy, Gokce I. Yayla, Sadik C. Esener · IEEE Transactions on Neural Networks · 1992
The design of a scalable, fully connected 3-D optoelectronic neural system that uses free-space optical interconnects with silicon-VLSI-based hybrid optoelectronic circuits is proposed. The system design uses a hardware-efficient combination of pulsewidth-modulating optoelectronic neurons and pulse-amplitude-modulating electronic synapses. Low-area, high-linear-dynamic-range analog synapse and neuron circuits are proposed. SPICE circuit simulations and an experimental demonstration of the free-space optical interconnection system are included.