Programmable VCSEL-based photonic system architecture for future agile Tb/s metro networks
| Autor: | Alberto Gatto, David Larrabeiti, Ramon Casellas, Juan Fernandez-Palacios, Ricard Vilalta, G. Otero, Ricardo Martinez, Raul Munoz, Paola Parolari, Laia Nadal, Pierpaolo Boffi, M. Svaluto Moreolo, J. Vilchez, Christian Neumeyr, Josep M. Fabrega |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Transceivers
Dynamic adaptations Computer Networks and Communications Computer science Metropolitan area networks 02 engineering and technology Optical signal to noise ratio Surface emitting lasers IP networks 01 natural sciences Cost effectiveness 010309 optics 5G mobile communication systems Photonic systems Bandwidth 020210 optoelectronics & photonics Network element Photonic technologies Vertical cavity surface emitting lasers 5G mobile communication 0103 physical sciences Agile manufacturing systems 0202 electrical engineering electronic engineering information engineering Electronic engineering Computer architecture Systems architecture Wimax Coherent receivers Signal to noise ratio business.industry Photonic integrations Multi-hop connections Modular design Automation NO KEYWORDS Photonics Scalability Programmability Transceiver business 5G |
| Zdroj: | Journal of Optical Communications and Networking r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) Universitat Oberta de Catalunya (UOC) |
| ISSN: | 1943-0620 |
| Popis: | 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 G H z ) 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. |
| Databáze: | OpenAIRE |
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