M. IBRAHIM, R.; S. SAADI, N.; F. RAMADHAN, S. Noise Figure Characteristics of Erbium Doped Fiber Amplifiers at single and multiple amplified stage. Journal of Education and Science, [S. l.], v. 25, n. 3, p. 44–53, 2012. DOI: 10.33899/edusj.2012.59193. Disponível em: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/42124. Acesso em: 10 sep. 2025.