Analysis of the behavior of an all-optical not logic gate in a photonic crystal directional coupler / Análise do comportamento de uma porta lógica not totalmente óptica em um acoplador direcional de cristal fotônico

• Autor(a) principal: Oliveira, Jorge Everaldo de
• Data de Publicação: 2022
• Outros Autores: Sousa, Fabio Barros de, Oliveira, Jackson Moreira de, Oliveira, Lelis Araujo de, Silva, Hudson Afonso Batista da, Sabino, Elizabeth Rego, Araújo, Fabio Souza de, Silva, Alan dos Reis, Luz, Fabrício Pinho da, Costa, Marcos Benedito Caldas
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Veras
• Texto Completo: https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/47015
• topic: photonic crystal directional coupler; not logic gate; fdtd method; cross; bar.

In the present work, an optical directional coupler (ODC) based on two-dimensional (2-D) photonic crystal (PhC) was analyzed and proposed, through the methods of plane wave expansion (PWE) and finite-difference time-domain (FDTD), which were used with the purpose of analyzing the behavior of a new all-optical NOT logic gate and the electric field distribution in the coupler for linear (bar), non-linear (cross) states and the control signal. The simulation results in OptiFDTD software show that the proposed crystal structure is a strong candidate for use in ultrafast photonic integrated circuits (PICs), being highly advantageous with excellent transmission performance and simple design.