An all-optical scheme for expressing analog intensity value of a laser beam by binary coded data with tree architecture

摘要

Non-linear opticla materials have wide uses in the optically control switching systems, and therefore in all-optical parallel computation these materials show a potential prospect~1-2. Here in this communication we propose an idea of expressing an analog optical signal by its respective digital counterpart. The analog optical signal may be successfully expressed here by the scheme in proper digital data in binary form. To develop the scheme it requires a system guided by tree architecture followed by a combination of non-linear and linear material. The input light beam whose analog intensity value is supposed to be expressed in binary data form should be a polarised light beam (preferably a laser beam)for properly activating the non-linear material. We now describe the whole scheme in detail.