Patent ID: 8155484
Filing Date: 2012-04-10
Classification: G02B,G06E

Abstract:
1. An all-optical device for data processing, wherein said data processing comprises implementing at least one predetermined logic function, the device comprising: a) at least one optical waveguide unit made of linear media and configured to provide multiple total internal reflections of input light, said input light having predetermined properties and being indicative of data to be processed while passing through the waveguide unit, the waveguide unit comprising a waveguide portion which comprises input and output facets and is configured as an interaction zone for interaction between reflected light components of the input light, wherein b) said interaction zone of the waveguide portion has a predetermined cross-sectional size, a, and a predetermined longitudinal dimension, l, along a longitudinal axis of the interaction zone being an axis of symmetry of the interaction zone and defining an optical path of the input light propagation from the input to the output facet; c) said input facet comprises an input aperture arrangement formed by at least two input apertures made in at least two selected locations in the input facet of the waveguide portion and each having a selected cross-sectional dimension, b; d) said output facet comprises an output aperture arrangement formed by at least one output aperture made in at least one selected location in the output facet of the waveguide portion and having a selected cross-sectional dimension, said at least one selected location for the output aperture being coaxial with one of said at least two input apertures and being shifted with respect to the axis of symmetry of said interaction zone; e) the location of each input apertures with respect to said longitudinal axis of the interaction zone of the waveguide portion and a ratio between the cross-sectional dimension, b, of the input aperture and the cross-sectional size, a, of the interaction zone are selected for said properties of the input light so as to determine features of an interference pattern resulting from said interaction between the light components of the input light received through said at least two input apertures, while the light components propagate through the interaction zone; and f) the location of each output aperture relative to the features of the interference pattern is selected to provide at the output of the waveguide portion an appropriate modulation of at least one parameter of the input light in accordance with said at least one predetermined logic function.