MODE COUPLING IN THREE-CORE PHOTONIC CRYSTAL FIBER FOR SPATIAL MODE CONVERSION. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 20, p. -, 2022. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/6502. Acesso em: 28 jul. 2025.