N-bit optical digital-to-analog converter based on micro ring resonator

Abstract

The invention discloses an N-bit optical digital-to-analog converter based on a micro ring resonator. The N-bit optical digital-to-analog converter comprises N optical beam splitters and N micro ring resonators, wherein each optical beam splitter comprises a first input waveguide, a first output waveguide and a second output waveguide; the second output waveguides are connected with the input waveguide of a next optical beam splitter, and are cascaded gradually; a last second output waveguide is suspended; each micro ring resonator is provided with a silicon-based nano wire micro ring, an input waveguide, a through waveguide and a public downloading waveguide; the input waveguides are connected with the first output waveguides of adjacent optical beam splitters; N micro ring resonators share a public downloading waveguide; digital signals to be converted are N voltage signals which are loaded on the N micro ring resonators respectively; and light signals output by the public downloading waveguide are analog signals which are converted from digital signals, and can directly enter a next stage for operating and can be access a photoelectric detector from the public downloading waveguide to directly read out a calculation result.

Description

technical field [0001] The invention relates to an N-bit optical digital-to-analog converter based on a microring resonator. The optical digital-to-analog converter uses the inherent advantages of optics to complete the digital-to-analog conversion of N-bit digital signals, so that the optical digital-to-analog converter replaces the electrical A digital-to-analog converter is implemented. In particular, the device uses a compact silicon-based integrated microring resonator to realize the digital-to-analog conversion function, which is expected to play a role in future optoelectronic digital-to-analog hybrid systems. Background technique [0002] With the development of science and technology, higher and higher requirements are put forward for the speed and capacity of information processing. In this way, traditional electrical signal processing methods show more and more limitations in speed and power consumption. As a new way of signal processing, due to the natural chara...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a kind of N-bit optical digital-to-analog converter based on the microring resonator, which is a device that utilizes optical principles to realize N-bit digital-to-analog conversion, in order to solve the problems of speed, Delay, power consumption, volume and other issues, improve the speed of digital-to-analog conversion in optoelectronic systems, reduce volume, reduce power consumption and cost

Images