Synthesis of Synchronous Finite State Machines for All-Optical Implementations

In this paper an efficient method to synthesize all-optical synchronous digital finite state machines is suggested. The synthesis is based on the design of purely combinational circuits composed of a cascade of iterative cells that perform the same logical functions of the corresponding synchronous Finite State Machine (FSM). This allows high bit rates and a high degree of modularity, so an easy integration of the circuit is possible. These characteristics make the method suitable to be adopted in a photonic environment in which clocked digital memory elements are still a critical aspect