M. IBRAHIM, R.; رغید; S. SAADI, N.; نوزاد; F. RAMADHAN, S.; سعد. Noise Figure Characteristics of Erbium Doped Fiber Amplifiers at single and multiple amplified stage. Journal of Education and Science (JES), [S. l.], v. 25, n. 3, p. 44–53, 2012. DOI: 10.33899/edusj.2012.59193. Disponível em: https://rjps.uomosul.edu.iq/index.php/edusj/article/view/17974. Acesso em: 4 aug. 2025.