Optical neuron unit and network of the same
AssigneeCognifiber Ltd.
InventorsZeev Zalevsky, Eyal Cohen
Life of this patent
Estimating the term…
Abstract
An artificial neuron network and corresponding neuron units are described and corresponding neuron units. The neuron network comprises a plurality of two or more layers of artificial neuron units. The layers of artificial neuron units are configured for communicating between them via an arrangement of two or more optical waveguide (optical fibers). The arrangement of two or more optical waveguides are configured with predetermined coupling between the two or more waveguides, thereby providing cross communication between neuron units of said two or more layers.
Claims20
An artificial neuron network comprising a plurality of two or more layers of artificial neuron units, said layers of artificial neuron units being configured for communicating between them via an arrangement of two or more optical waveguides, said arrangement of two or more optical waveguides being configured with predetermined coupling between the two or more waveguides, thereby providing cross communication between neuron units of said two or more layers, wherein said arrangement of two or more optical waveguides is characterized by at least one of the following:
- at least one of said two or more optical waveguides is configured with one or more etched patterns thereon, forming one or more grating patterns, thereby selectively enhancing coupling of optical signals between said at least one waveguide and at least one other waveguide positioned in selected proximity to said etched pattern;
- and
- at least two of said two or more optical waveguides are configured with a tapered region providing increased coupling between the at least two optical waveguides at said region.
An artificial neuron network, comprising a plurality of two or more layers of one or more artificial neuron units, said layers of the one or more artificial neuron units being configured for communicating between them via an arrangement of two or more optical waveguides, said arrangement of two or more optical waveguides being configured with predetermined coupling between the two or more waveguides, thereby providing cross communication between neuron units of said two or more layers, wherein at least one of said one or more artificial neuron units comprises a modal mixing unit configured for receiving input light of a first wavelength range and applying selected mixing to light components of two or more spatial modes of said input light, said modal mixing unit comprises a multi-mode optical fiber having at least a portion thereof impregnated with gain medium and comprising predetermined gain medium configured for emitting light at predetermined first wavelength range in response to pumping light of second wavelength range, wherein said modal mixing unit is further configured to selectively pump additional energy to one or more spatial modes of said input light propagating therethrough in response to pumping light of said second wavelength range and one or more selected spatial modes.
An artificial neuron network, comprising:
- a plurality of two or more layers of artificial neuron units, said layers of artificial neuron units being configured for communicating between them via an arrangement of two or more optical waveguides, said arrangement of two or more optical waveguides being configured with predetermined coupling between the two or more waveguides, thereby providing cross communication between neuron units of said two or more layers;
- and
- one of the following:
- at least one optical processing unit, said optical processing unit comprises optical gain unit having input and output facets positioned in optical path between a input multi core optical fiber and output multi core optical fiber;
- said optical gain unit being exposed to external illumination generating a holographic pattern within said optical gain unit thereby selectively affecting light transmission between said input multi core fiber and output multi core fiber;
- at least one optical processing unit, said optical processing unit comprises at least one optical input port for receiving first optical signal, and at least one additional input port for receiving a second additional input signal, the optical processing unit comprises a first optical fiber section, an interaction node and a second optical fiber section, wherein said first and second optical fiber sections are configured of optical fiber having selected properties and length for separating optical signal passing therethrough to wavelength or spatial frequency components, said interacting mode is configured for receiving signal components of said first optical signal from said first optical fiber section interact said signal components with said second additional input signal and direct for generating multiplied signal components, and for coupling said multiplied signal components to said second fiber section for transforming said multiplied signal components and providing output signal indicative of interaction between said first and second input signals;
- at least one processing junction comprising an input port adapted for receiving first and second input optical signals and an optical spatial mixing arrangement configured for receiving said first and second input optical signals and applying optical processing for providing output data indicative of correlation between said first and second input optical signals.
An artificial neuron unit comprising:
- a modal mixing unit configured for receiving input light of a first wavelength range and applying selected mixing to light components of two or more spatial modes of said input light, said modal mixing unit comprising a multi-mode optical fiber having at least a portion thereof impregnated with gain medium and comprising predetermined gain medium configured for emitting light at predetermined first wavelength range in response to pumping light of second wavelength range, wherein said modal mixing unit is further configured to selectively pump additional energy to one or more spatial modes of said input light propagating therethrough in response to pumping light of said second wavelength range and one or more selected spatial modes;
- and
- a beam combiner located at input thereof, said beam combiner is positioned to direct input light of said first wavelength range and pumping light of said second wavelength range to be coupled into said multi-mode optical fiber.
A processing junction for use in artificial neuron network, the processing junction comprises input port adapted for receiving first and second input optical signals and an optical spatial mixing arrangement configured for receiving said first and second input optical signals and applying optical processing for providing output data indicative of correlation between said first and second input optical signals.
An optical processing unit having one of the following configurations:
- comprising optical gain unit having input and output facets positioned in optical path between a input multi core optical fiber and output multi core optical fiber;
- said optical gain unit being exposed to external illumination generating a holographic pattern within said optical gain unit thereby selectively affecting light transmission between said input multi core fiber and output multi core fiber;
- and
- comprising at least one optical input port for receiving first optical signal, and at least one additional input port for receiving a second additional input signal, the optical processing unit comprises a first optical fiber section, an interaction node and a second optical fiber section, wherein said first and second optical fiber sections are configured of optical fiber having selected properties and length for separating optical signal passing therethrough to wavelength or spatial frequency components, said interacting mode is configured for receiving signal components of said first optical signal from said first optical fiber section interact said signal components with said second additional input signal and direct for generating multiplied signal components, and for coupling said multiplied signal components to said second fiber section for transforming said multiplied signal components and providing output signal indicative of interaction between said first and second input signals.
Dependencies are inferred from the claim text.