Free-space optical networks using diffractive and refractive micro-optics

An optoelectronic matrix-matrix multiplier has been implemented using electronically addressed Spatial Light Modulators (SLMs) and Computer Generated Holographic optical interconnection elements (CGHs). The design and fabrication of the optical interconnection elements using both diffractive and refractive technologies is discussed along with an evaluation of device performance. The operation of the matrix-matrix multiplier as a Back Propagation neural network is presented along with an analysis of performance accuracy for a character recognition application.<
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