IMPLEMENTATION OF HYBRID ENCODED ALL OPTICAL COMPUTATION USING NONLINEAR MATERIAL BASED DIFFERENCE FREQUENCY GENERATION ALONE

Abstract

Among all the optical encoding techniques, hybrid encoding technique is the most advantageous not only for its simplicity, but also because it reduces the hardware complexity, and all optical devices can be developed using simple principles like difference frequency generation only. The technique is utilized to develop devices like half adder, half subtractor and full adder for all optical computation. The working of these devices is based on simply difference frequency generation in nonlinear materials. The beauty of this computation method lies in its simplicity and mainly in encoding mechanism of the binary bits.