Photon matrix vector multiplier based on wavelength routing and operation method thereof

Abstract

The invention provides a photon matrix vector multiplier based on wavelength routing and an operation method thereof. The problems that an existing optical matrix vector multiplier cannot achieve a large scale and is not feasible are solved. The photon matrix vector multiplier comprises a multi-wavelength light source unit, a first light modulator array, a power divider array, a second light modulator array, an array waveguide grating and a detector array which are arranged in sequence, the first light modulator array comprises N first modulators, the power divider array comprises N power dividers, the second light modulator array comprises N second modulators, the array waveguide grating comprises an input diffraction region, an array waveguide and an output diffraction region which are arranged in sequence, and the detectors are connected with M output ports of the output diffraction region in a one-to-one correspondence mode. Compared with a traditional scheme that space optics is directly mapped to a plane, the multiplier structure provided by the invention has the advantages of high performance, high realizability, easiness in integration and the like.

Description

technical field [0001] The invention relates to the field of optical information technology, in particular to a wavelength routing-based photon matrix vector multiplier and an operation method thereof. Background technique [0002] Computing technology is the core of modern information technology. Traditional electronic computing methods have the disadvantages of high energy consumption, low efficiency, and low parallelism, but photonic computing technology can overcome the above shortcomings. Matrix-vector multiplication is an important branch of photonic computing. [0003] The existing optical matrix-vector multiplication operation adopts a free-space optical structure, and N groups of light sources loaded with vector information are arranged in a row in the horizontal direction, and the beam is expanded into a space containing N×M modulation units through a cylindrical lens system in the vertical direction. The light modulator area array, after loading the matrix elemen...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing optical matrix vector multiplier cannot achieve a large scale and is not feasible, thereby providing a photon matrix vector multiplier and its operation method based on wavelength routing, which is directly compatible with traditional space optics. Compared with the scheme mapped to the plane, the multiplier structure proposed by the present invention has the advantages of high performance, high realizability, easy integration, etc.

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