Dimmable differential equation solver based on interference couplers and silica-based micro-ring resonant cavity

Abstract

Provided is a dimmable differential equation solver based on interference couplers and a silica-based micro-ring resonant cavity in the field of multi-light-path multiplexing systems. A to-be-processed-signal generating module generates a light signal to be processed, and the light signal to be processed is input from the input end of a dimmable differential equation solving module; an output signal obtained by solving the dimmable differential equation solving module is output from the output end to a signal observation and analysis module to be displayed and observed. The dimmable differential equation solving module comprises the silica-based micro-ring resonant cavity, and micro-rings of the silica-based micro-ring resonant cavity are coupled with direct waveguides at a transmission end and a reflection end to form two interference couplers. The equivalent coupling strength between the micro-rings and the direct waveguides by changing outer arm phase shifts of the two interference couplers, and therefore dynamic adjustment on coefficients of constant-coefficient differential equations to be solved can be achieved. The dimmable differential equation solver is applied to simulation and analysis of linear time invariant systems and provides a solution for solving linear constant-coefficient differential equations of general types.

Description

technical field [0001] The invention relates to a device in the field of multi-optical multiplexing systems, in particular to an adjustable optical differential equation solver based on an interference-coupled silicon-based micro-ring resonator cavity. Background technique [0002] After decades of continuous development, integrated electronics for computing and information processing are approaching their processing rate limits. Compared with the computing and information processing technology in the traditional electrical domain, the all-optical computing and information processing technology based on photonic devices can effectively overcome the bottleneck of processing bandwidth, so it has significant advantages in the field of ultra-high-speed computing and information processing. In recent years, some photonic processors with functions similar to electrical domain processors have been designed and verified, such as photonic differentiators, photonic integrators, and ph...

AI Technical Summary

Problems solved by technology

This scheme implements a single-chip integrated optical differential equation solver. The disadvantage is that the constant coefficient differential equations to be solved do not contain the derivative terms of the input signals, so they cannot be used to solve the general form of linear constant coefficient differential equations.

However, the technical structure is more complex and requires higher manufacturing processes.

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