Programmable VCSEL-based photonic system architecture for future agile Tb/s metro networks
Por:
Moreolo, MS, Fabrega, JM, Nadal, L, Martínez, R, Casellas, R, Vílchez, J, Munoz, R., Vilalta, R, Gatto, A, Parolari, P, Boffi, P, Neumeyr, C, Larrabeiti, D, Otero, G, Fernández-Palacios, JP
Publicada:
1 feb 2021
Categoría:
Computer networks and communications
Resumen:
To deal with the challenging requirements of metropolitan area networks (MANs), it is essential to design cost-effective systems that can support high capacity and dynamic adaptation, as well as a synergy of programmability and efficient photonic technologies. This becomes crucial for very large MANs that support 5G, where multihop connections will need to be dynamically established at target capacities beyond Tb/s. Programmability, automation, and modularity of network elements are key desired features. In this work, a modular photonic system, programmable via a software-defined networking platform, designed for dynamic 5G-supportive MANs, is described and analyzed. We consider modular sliceable bandwidth/bit rate variable transceivers (S-BVTs) based on vertical-cavity surface-emitting laser (VCSEL) technology and dense photonic integration. The proposed system and its programmability are experimentally assessed using a VCSEL with 10 GHz bandwidth. The experiments are performed over connections as long as six-hop and 160 km, from low-level aggregation nodes to metro-core nodes, thereby enabling IP off-loading. Furthermore, a numerical model is derived to estimate the performance when adopting higher bandwidth VCSELs (>= 18 GHz) and integrated coherent receivers, as targeted in the proposed system. The analysis is performed for both 50 GHz and 25 GHz granularities. In the former case, 50 Gb/s capacity per flow can be supported over the targeted connections, for optical signal-to-noise ratio values above 26 dB. When the granularity is 25 GHz, the filter narrowing effect severely impacts the performance. Nevertheless, 1.2 Tb/s capacity (scalable to higher values if spectral/spatial dimensions are exploited) can be achieved when configuring the S-BVT to enable 40 VCSEL flows. This confirms that the system is promising to support Tb/s connections in future agile MANs. (C) 2020 Optical Society of America
Filiaciones:
Moreolo, MS:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Fabrega, JM:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Nadal, L:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Martínez, R:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Casellas, R:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Vílchez, J:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Munoz, R.:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Vilalta, R:
Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. C. F. Gauss 7, Castelldefels (Barcelona), 08860, Spain
Gatto, A:
Politecnico di Milano, Via Ponzio 34/5, Milan, 20133, Italy
Parolari, P:
Politecnico di Milano, Via Ponzio 34/5, Milan, 20133, Italy
Boffi, P:
Politecnico di Milano, Via Ponzio 34/5, Milan, 20133, Italy
Neumeyr, C:
Vertilas GmbH, Daimlerstr. 11d, Garching, 85748, Germany
Larrabeiti, D:
Universidad Carlos III de Madrid, Av. Universidad 30, Leganés, 28911, Spain
Otero, G:
Universidad Carlos III de Madrid, Av. Universidad 30, Leganés, 28911, Spain
Fernández-Palacios, JP:
Telefonica R&D, Edificio Sur 3, Planta 3, Distrito C, Madrid, 28050, Spain
Green Published, All Open Access; Green Open Access
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