Patent ID: 6404535
Filing Date: 2002-06-11
Classification: G06E

Abstract:
An optical system for correlating electrical input signals, said system comprising:an optical source generating an optical beam; an optical splitter responsive to the optical beam and splitting the beam into a first split beam traveling along a first optical path and a second split beam traveling along a second optical path; a first modulator positioned in the first optical path and being responsive to the first split beam and a first electrical input signal, and a second modulator positioned in the second optical path and being responsive to the second split beam and a second electrical input signal, said first modulator modulating the first split beam with the first input signal and said second modulator modulating the second split beam with the second input signal; and a multi-mode optical imaging device responsive to the first modulated beam and the second modulated beam, said imaging device combining the first and second modulated beams and generating in-phase and quadrature phase optical output signals.