ZEGADLO, Krzysztof; KARPIERZ, Miroslaw. Analysis of a beam propagation in optical fiber structures with high step index. Photonics Letters of Poland, [S. l.], v. 1, n. 4, p. pp. 175–177, 2009. DOI: 10.4302/photon. lett. pl.v1i4.80. Disponível em: https://www.photonics.pl/PLP/index.php/letters/article/view/1-59. Acesso em: 18 apr. 2024.