A non-volatile programmable integrated photonic device and its design method

Abstract

The invention discloses a non-volatile programmable integrated photonic device and a design method thereof, belonging to the field of photonic devices. The multimode waveguide of the integrated photonic device includes N×M logic units that can independently adjust the tuning state, and N and M are both is a positive integer; each logic unit includes a cuboid structure with a groove made of silicon and a filling structure filled in the groove made of a phase-change material, and each logic unit is a sub-wavelength structure. By adjusting the tuning state of each logic unit, the distribution of the refractive index of the device can be regulated on a sub-wavelength scale to realize photonic devices with different functions. Combining phase-change materials with photonic crystal-like structures, using the non-volatile and reconfigurable properties of phase-change materials, and utilizing the photonic crystal-like structure’s sub-wavelength-scale optical field regulation capabilities, to achieve non-volatile, programmable Ultra-small integrated photonic devices reduce device size and energy consumption, and have more tuning functions to achieve different functional uses.

Description

technical field [0001] The invention belongs to the field of photonic devices, and more specifically relates to a nonvolatile programmable integrated photonic device and a design method thereof. Background technique [0002] With the development of high-performance computing and high-speed interconnection, copper wires are gradually unable to meet the needs of high-speed data transmission. All-optical interconnection has the advantages of large bandwidth and long-distance transmission, and is considered as a promising solution. To realize low-cost all-optical interconnects, integrated photonic devices have become a hot research area in both academia and industry. Silicon-based integrated photonic devices are highly integrated and compatible with the CMOS platform, and are one of the most popular research directions in the field of optoelectronics. How to integrate more devices in a limited area, realize the intelligent interconnection between devices, and reduce chip energ...

AI Technical Summary

Problems solved by technology

In addition, the electro-optic effect and thermo-optic effect are volatile, and require additional energy injection to maintain the existing state even when they are not tuned, so devices based on these two effects have high energy consumption

Existing tunable photonic devices usually only have a few design parameters, and the reconfigurable functions are relatively single, which is not conducive to the realization of intelligent interconnection between devices

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