An All-optical Proteretic Switch Using Semiconductor Ring Lasers

TL;DR

This paper introduces an all-optical proteretic switch based on semiconductor ring lasers, demonstrating how to achieve and control proteresis, a phenomenon opposite to hysteresis, through system design and parameter tuning.

Contribution

The work presents the first design and experimental realization of an all-optical proteretic system using semiconductor ring lasers with a novel constraint feedforward approach.

Findings

Proteretic behavior achieved under specific conditions.

Experimental results align with theoretical simulations.

System can switch between hysteric and proteretic modes based on parameters.

Abstract

Proteresis, a complementary effect to well-known hysteresis, is an interesting phenomenon to be explored. As we know, the hysteric device is a bistable switch whose states depend on the system's history whereas the proteretic device states' depend on the future. Though an all-optical implementation of the hysteric device has been demonstrated but its complementary behavior has yet to be contrived. Therefore, this work presents the design and development of an all-optical proteretic system using semiconductor ring lasers. The design was achieved by providing a constraint feedforward path to a hysteric feedback system. Additionally, the role of various parameters was studied in order to achieve proteresis. It is observed that the proteretic effect can be achieved only for specific conditions otherwise the system behaves as a traditional hysteric device. The experimental results match well with the theoretical Simulink results.