Abstract: | A vector-matrix multiplier is disclosed which uses N different
wavelengths of light that are modulated with amplitudes representing
elements of an N.times.1 vector and combined to form an input
wavelength-division multiplexed (WDM) light stream. The input WDM light
stream is split into N streamlets from which each wavelength of the light
is individually coupled out and modulated for a second time using an
input signal representing elements of an M.times.N matrix, and is then
coupled into an output waveguide for each streamlet to form an output WDM
light stream which is detected to generate a product of the vector and
matrix. The vector-matrix multiplier can be formed as an integrated
optical circuit using either waveguide amplitude modulators or ring
resonator amplitude modulators. |