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Low power-consumption analysis for optical switch based on VO2 thin film

XIQU CHEN1,* , YUAN ZHANG1, CHAO FANG1

Affiliation

  1. School of Electrical & Electronic Engineering, Wuhan Polytechnic University, Wuhan, China

Abstract

The theoretical minimum driving power expression for the optical switch based on VO2 thin film is given out in this paper, which is obtained from the phase transition characteristics and thermal structure of the VO2 thin film, and it reveals some key parameters to decide its value. According to the theoretical expression, a kind of simple thermal structure fabricated with a low phase transition VO2 thin film is proposed for low power-consumption optical switch. This kind of optical switch is compact and fast while requiring only a simple driving circuit, and the VO2 thin film is deposited by using reactive ion beam sputtering method and formed by post-annealing process, which is compatible with IC process..

Keywords

Optical switch, VO2 thin film, Power-consumption, Phase transition.

Submitted at: May 4, 2022
Accepted at: Feb. 14, 2023

Citation

XIQU CHEN, YUAN ZHANG, CHAO FANG, Low power-consumption analysis for optical switch based on VO2 thin film, Journal of Optoelectronics and Advanced Materials Vol. 25, Iss. 1-2, pp. 30-35 (2023)