ON THE METHOD OF IMPLEMENTATION OF FREQUENCY ENCODED ALL OPTICAL RECONFIGURABLE LOGIC GATES BASED ON TOTAL REFLECTIONAL OPTICAL SWITCH AT THE INTERFACE

A novel method of implementation of frequency encoded reconfigurable logic gates NOT, OR, AND, NOR, NAND, X-OR, X-NOR is discussed. The frequency sources and physical requirements for the implementation are also discussed. The non-linear material (liquid) suitable for these operations to be performed should be of large non-linear coefficient, high reverse saturation absorption, large thermo optic coefficient and low viscosity to get transformed into gas quickly when illuminated with a controlling beam of suitable intensity. The input controlling beams used to induce non-linearity in the switch are either of frequency υ1 or υ2 and the probe beam is a mixed signal of frequencies υ1 and υ2. The controlling inputs decide the output conditions of the probe to get different logic gates. The gates are reconfigurable in the sense that we can get one gate from another gate by just changing the filters used in the output ports or tuning the filters.