Corning SMF-28 Contour optical fibers enable smaller, lighter, more sustainable optical solutions to increase network efficiency for today and tomorrow. Typically, a Metro network goes up to 400 fibers that must fit have a thin outer diameter as many ducts are saturated with existing networks. The arrival of the 5G will expand the possibilities for offering IoT applications, autonomous vehicles, and smart cities services while imposing strong pressure on the physical infrastructure currently implemented, as. The arrival of the 5G will expand the possibilities for offering IoT applications, autonomous vehicles, and smart cities services while imposing strong pressure on the physical infrastructure currently implemented, as well as on static traffic engineering techniques that do not respond in an agile. Taking the 5G service bearer network as an example, according to the bandwidth evaluation method by the Next Generation Mobile Networks (NGMN) Alliance, during the commercial deployment phase of 5G, the access layer bandwidth in the MAN evolves to 50GE, and the core layer bandwidth in the MAN. 1 Metropolitan Optical Networks: A Survey on New Architectures and Future Trends Léia Sousa de Sousa, André C. Drummond, Member, IEEE Abstract Metropolitan optical networks are undergoing major transformations to continue being able to provide services that meet the requirements of the applications. This study proposes and presents a new central office (CO) for the optical metro access network (OMAN) with an affordable and distinctive switching system. The CO's foundation is built upon a novel optical multicarrier (OMC) generation technique. This technique provides numerous frequency carriers.