Abstract
This study examined a possibility to use a two-dimensional nonlinear Fabry-Perot interferometer (2DNFP) as a novel information processing device. Optical bistability was realized through positive or negative feedback between heat generated by absorption of light and change in resonance condition induced by temperature-dependent refractive index. Due to heat conduction in lateral direction, “turn-on” wave propagates two-dimensionally in this device. A novel feature of this device is that the ON-state region can degenerate at suitably weak light intensity. The authors examined the function of 2DNFP as a maze solver utilizing the extension and degeneration modes, as well as its function as logic gates. “AND”, “OR”, and “NOT” gates were realized, thus the logical universality of the 2DNFP was demonstrated.
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