Resumen: Architectural changes are required for the underlying networks to support the expected Internet data traffic volume growth caused by the popularization of cloud services, 5G-based services, and social networks, to provide a highly dynamic connectivity. Cost-effective and energy-efficient solutions for flexible network subsystems are required to provide future sustainable networks. In this paper, we present a cost-effective dense wavelength division multiplexing (DWDM) reconfigurable optical add/ drop multiplexer (ROADM) design enabling optical metro -access networks convergence. The cost-effective DWDM ROADM capabilities also have been assessed in an ultradense wavelength multiplexing (u-DWDM) ring network scenario. In particular, achievable network throughput has been considered. Idioma: Inglés DOI: 10.1364/JOCN.9.001116 Año: 2017 Publicado en: Journal of Optical Communications and Networking 9, 12 (2017), 1116-1124 ISSN: 1943-0620 Factor impacto JCR: 2.742 (2017) Categ. JCR: COMPUTER SCIENCE, HARDWARE & ARCHITECTURE rank: 9 / 52 = 0.173 (2017) - Q1 - T1 Categ. JCR: OPTICS rank: 24 / 93 = 0.258 (2017) - Q2 - T1 Categ. JCR: TELECOMMUNICATIONS rank: 30 / 87 = 0.345 (2017) - Q2 - T2 Categ. JCR: COMPUTER SCIENCE, INFORMATION SYSTEMS rank: 42 / 148 = 0.284 (2017) - Q2 - T1 Factor impacto SCIMAGO: 0.504 - Computer Networks and Communications (Q1)