Santillan Carranza, H., Ramirez, L. , Toala, O. , Cardenas, D. y Wong, P. 2025. Review of advanced wdm techniques for spectral efficiency in optical communication networks. Revista Científica: BIOTECH AND ENGINEERING . 5, 02 (dic. 2025). DOI:https://doi.org/10.52248/eb.Vol5Iss02.162.