Multi optically-coupled channels module and related methods of computation
AssigneesBar-Ilan University, Yissum Research Development Company of the Hebrew University of Jerusalem
InventorsZeev ZALEVSKY, Michael LONDON, Eyal COHEN, Amir SHEMER, Dror MALKA
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Abstract
An integrated optical module is provided. The optical module comprises multi optically-coupled channels, and enables the use thereof in an Artificial Neural Network (ANN). According to some embodiments the integrated optical module comprises a multi-core optical fiber, wherein the cores are optically coupled.
Claims20
A method of performing a calculation, the method comprising:
- providing a multi-core optical fiber of a length L comprising at least two cores configured to enable directional light propagation therein along the multi-core optical fiber, the optical fiber is configured to enable evanescent wave coupling between neighboring cores with a coupling length that is shorter than twice the length L at least for light signals having a first wavelength λ1 and wherein one or more of the cores are amplification core being configured to amplify the λ1 light according to a power of a control light signal having a second wavelength λ2 propagating therethrough;
- transmitting input light signals having selected individual powers and the first wavelength λ1 into a plurality of cores of the multi-core optical fiber;
- obtaining output light signals emitted from one or more of the cores of the multi-core optical fiber, the powers of said output light signals being a function of the powers of the input light signals, and
- transmitting control light signals having selected individual powers and the second wavelength λ2 into one or more of the amplification cores of the multi-core optical fiber, thereby defining said function.
A method for operating an optical module on at least two light input signals connected to an input port of the optical module, wherein the result of applying the function is provided on an output port of the optical module, the method comprising:
- inputting the at least two input light signals to the input port, wherein the input port includes at least two optical cores to allow directional propagation of the at least two input light signals from the input port to the output port;
- applying a function by a pump light control signal connected to the exposed ends of at least one of the at least two optical cores, wherein the input port and output port comprise exposed ends of the at least two cores;
- and
- coupling evanescently the at least two optical cores, wherein the coupling provides an amplification of a light signal in at least one of the at least two optical cores.
Dependencies are inferred from the claim text.