A comparative study of OmniGuide and a hollow metallic waveguide fiber in optical fiber communication system. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 10, p. 440–443, 2017. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/3865. Acesso em: 8 sep. 2025.