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An optical matrix-vector multiplier project

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3 Author(s)
Ittycheriah, A.P. ; Texas Instrum., Dallas, TX, USA ; Walkup, J.F. ; Krile, T.F.

The implementation of an optical matrix vector multiplier (OMVM) as a project to demonstrate to undergraduates the parallel capabilities of computing with light, the advantages and disadvantages of analog computers, and noise considerations for accurate results is discussed. The OMVM is designed using waveguides and is interfaced to an Apple IIGS. Software and hardware designs are explained in detail. The Hartley transform is developed as an application, with the transforming elements input on a film mask, the input represented by the intensity of LEDS, and the output detected using photodiodes. Test and measurements using the architecture are discussed. Simple methods for improving the performance of the system are presented

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Education, IEEE Transactions on  (Volume:34 ,  Issue: 4 )