Design and Implementation for optical fiber communication system using frequency shift coding. Baghdad Science Journal, Iraq, Baghdad, v. 7, n. 3, p. 1226–1231, 2025. DOI: 10.21123/bsj.2010.7.3.1226-1231. Disponível em: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/1094.. Acesso em: 18 jun. 2025.