In this letter, the authors propose a new concept of implementing all-optical logic gates by representing the logic states with polarization of an optical signal .As the state of polarization of the light signal is very much suitable for encoding and detecting the bits of data of a digital signal in communication, the scheme may extend some wide applications in alloptical parallel computation and information processing.
A new method is proposed to implement an optical S-R flip-flop by polarization encoded light signal, necessary optical nonlinear material and half-wave plate. In this system the real time speed of operation can be achieved, and at the time of transmission the average power of a byte remains constant. This polarization encoded flip-flop can act as a memory cell.
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