Determination of the Dispersion Profile in Photonic Crystal Fibers using the Empirical Relationship. Iraqi Journal of Science, [S. l.], v. 66, n. 1(SI), p. 433–445, 2025. DOI: 10.24996/ijs.2025.66.1(SI).2. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11816.. Acesso em: 5 jul. 2025.