{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:43:20Z","timestamp":1760150600836,"version":"build-2065373602"},"reference-count":46,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T00:00:00Z","timestamp":1701043200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"EU SEASON","award":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"],"award-info":[{"award-number":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"]}]},{"name":"EU","award":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"],"award-info":[{"award-number":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"]}]},{"name":"MCIN\/AEI\/10.13039\/501100011033\/ FEDER","award":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"],"award-info":[{"award-number":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"]}]},{"name":"Ministerio de Asuntos Econ\u00f3micos y Transformaci\u00f3n Digital","award":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"],"award-info":[{"award-number":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"]}]},{"name":"European Union-NextGenerationEU","award":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"],"award-info":[{"award-number":["101096120","PID2021-127916OB-I00","TSI-063000-2021-22\/23\/115"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Future Internet"],"abstract":"<jats:p>In the last 15 years, global data traffic has been doubling approximately every 2\u20133 years, and there is a strong indication that this pattern will persist. Hence, also driven by the emergence of new applications and services expected within the 6G era, new transmission systems and technologies should be investigated to enhance network capacity and achieve increased bandwidth, improved spectral efficiency, and greater flexibility to effectively accommodate all the expected data traffic. In this paper, an innovative transmission solution based on multiband (MB) over spatial division multiplexing (SDM) sliceable bandwidth\/bitrate variable transceiver (S-BVT) is implemented and assessed in relation to the provision of sustainable capacity scaling. MB transmission (S+C+L) over 25.4 km of 19-cores multicore fibre (MCF) is experimentally assessed and demonstrated achieving an aggregated capacity of 119.1 Gb\/s at 4.62\u00d710\u22123 bit error rate (BER). The proposed modular sliceable transceiver architecture arises as a suitable option towards achieving 500 Tb\/s per fibre transmission, by further enabling more slices covering all the available S+C+L spectra and the 19 cores of the MCF.<\/jats:p>","DOI":"10.3390\/fi15120381","type":"journal-article","created":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T11:54:48Z","timestamp":1701086088000},"page":"381","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["The Multiband over Spatial Division Multiplexing Sliceable Transceiver for Future Optical Networks"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0798-6370","authenticated-orcid":false,"given":"Laia","family":"Nadal","sequence":"first","affiliation":[{"name":"Centre Tecnol\u00f2gic de Telecomunicacions de Catalunya (CTTC\/CERCA), Parc Mediterrani de la Tecnologia\u2014Building B4, Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mumtaz","family":"Ali","sequence":"additional","affiliation":[{"name":"Centre Tecnol\u00f2gic de Telecomunicacions de Catalunya (CTTC\/CERCA), Parc Mediterrani de la Tecnologia\u2014Building B4, Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1048-2077","authenticated-orcid":false,"given":"Francisco Javier","family":"V\u00edlchez","sequence":"additional","affiliation":[{"name":"Centre Tecnol\u00f2gic de Telecomunicacions de Catalunya (CTTC\/CERCA), Parc Mediterrani de la Tecnologia\u2014Building B4, Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Josep Maria","family":"F\u00e0brega","sequence":"additional","affiliation":[{"name":"Centre Tecnol\u00f2gic de Telecomunicacions de Catalunya (CTTC\/CERCA), Parc Mediterrani de la Tecnologia\u2014Building B4, Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michela","family":"Svaluto Moreolo","sequence":"additional","affiliation":[{"name":"Centre Tecnol\u00f2gic de Telecomunicacions de Catalunya (CTTC\/CERCA), Parc Mediterrani de la Tecnologia\u2014Building B4, Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,11,27]]},"reference":[{"key":"ref_1","first-page":"F36","article-title":"Network Traffic Analysis under Emerging Beyond-5G Scenarios for Multi-Band Optical Technology Adoption","volume":"15","author":"Ruiz","year":"2023","journal-title":"JOCN"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"24190","DOI":"10.1364\/OE.26.024190","article-title":"Fiber-optic transmission and networking: The previous 20 and the next 20 years","volume":"26","author":"Winzer","year":"2018","journal-title":"Opt. Express"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1714","DOI":"10.1109\/JPROC.2022.3188337","article-title":"Flexible Technologies to Increase Optical Network Capacity","volume":"110","author":"Lord","year":"2022","journal-title":"Proc. IEEE"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"403","DOI":"10.1007\/s11107-015-0553-8","article-title":"On the design of 5G transport networks","volume":"30","author":"Fiorani","year":"2015","journal-title":"Photon. Netw. Commun."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"573","DOI":"10.1364\/JOCN.10.000573","article-title":"Fronthaul Network Modeling and Dimensioning Meeting Ultra-low Latency Requirements for 5G","volume":"10","author":"Larrabeiti","year":"2018","journal-title":"J. Opt. Comm. Netw."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"9232","DOI":"10.1109\/ACCESS.2023.3239807","article-title":"Wireless and Optical Convergent Access Technologies Toward 6G","volume":"11","author":"Filgueiras","year":"2023","journal-title":"IEEE Access"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1186\/s13638-021-01973-9","article-title":"Transition technologies towards 6G networks","volume":"2021","author":"Raddo","year":"2021","journal-title":"Wirel. Commun. Netw."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"144","DOI":"10.1109\/MCOM.2018.1700890","article-title":"Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless Systems Beyond 5G","volume":"56","author":"Boulogeorgos","year":"2018","journal-title":"IEEE Commun. Mag."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1109\/MNET.001.1900428","article-title":"VLC-Based Networking: Feasibility and Challenges","volume":"34","author":"Ndjiongue","year":"2020","journal-title":"IEEE Netw."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Rao, S., Digge, J., and Rindhe, B.U. (2021, January 2\u20134). Free Space Optics for 5G and Beyond. Proceedings of the 2021 6th International Conference for Convergence in Technology (I2CT), Maharashtra, India.","DOI":"10.1109\/I2CT51068.2021.9418147"},{"key":"ref_11","unstructured":"Montero, D.S., Altuna, R., L\u00f3pez-Cardona, J.D., Al-Zubaidi, F.M.A., and V\u00e1zquez, C. (2023). Advanced Photonics Congress 2023, Optica Publishing Group."},{"key":"ref_12","unstructured":"Lei, M., Li, A., Hua, B., Zhang, J., Cai, Y., Zou, Y., and Zhu, M. (2022). Conference on Lasers and Electro-Optics, Optica Publishing Group."},{"key":"ref_13","unstructured":"(2023, September 14). 5G PPP Technology Board. White paper: AI and ML\u2014Enablers for Beyond 5G Networks. Available online: https:\/\/doi.org\/10.5281\/zenodo.4299895."},{"key":"ref_14","unstructured":"Ghosh, A. (2023, September 14). Massive MIMO for the New Radio\u2014Overview and Performance. IEEE 5G Summit. Available online: http:\/\/www.5gsummit.org\/hawaii\/docs\/slides\/Amitava-Ghosh.pdf."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Abdalla, A.M., Rodriguez, J., Elfergani, I., and Teixeira, A. (2019). Optical and Wireless Convergence for 5G Networks, Wiley-IEEE Press.","DOI":"10.1002\/9781119491590"},{"key":"ref_16","unstructured":"United Nations (2023, September 20). The 17 Goals. Available online: https:\/\/sdgs.un.org\/goals."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1725","DOI":"10.1109\/JPROC.2022.3202103","article-title":"Ultrawideband Systems and Networks: Beyond C + L-Band","volume":"110","author":"Hoshida","year":"2022","journal-title":"Proc. IEEE"},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Lu\u00eds, R.S., Puttnam, B.J., Rademacher, G., Klaus, W., Agrell, E., Awaji, Y., and Wada, N. (2017, January 24\u201327). On the spectral efficiency limits of crosstalk-limited homogeneous single-mode multi-core fiber systems. Proceedings of the Advanced Photonics Congress: Photonic Networks and Devices, New Orleans, LO, USA.","DOI":"10.1364\/NETWORKS.2017.NeTu2B.2"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1804","DOI":"10.1109\/JPROC.2022.3207012","article-title":"Few-Mode Fiber Technology, Deployments, and Systems","volume":"110","author":"Sillard","year":"2022","journal-title":"Proc. IEEE"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Wu, Q., Wang, J., Chen, S., and Kanai, A. (2022, January 16\u201318). Resource allocation problem in multi-band space-division multiplexing elastic optical networks. Proceedings of the 2022 18th International Conference on Computational Intelligence and Security (CIS), Chengdu, China.","DOI":"10.1109\/CIS58238.2022.00054"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"F22","DOI":"10.1364\/JOCN.493231","article-title":"Migration of elastic optical networks to the C + L-bands subject to a partial upgrade of the number of erbium-doped fiber amplifiers","volume":"15","author":"Hosseini","year":"2023","journal-title":"J. Opt. Commun. Netw."},{"key":"ref_22","first-page":"F13","article-title":"Capacity Scaling in Metro-Regional Aggregation Networks: The Multiband S-BVT","volume":"15","author":"Nadal","year":"2023","journal-title":"JOCN"},{"key":"ref_23","unstructured":"(2023, September 27). Acacia Communications, Inc.. Available online: https:\/\/acacia-inc.com\/blog\/acacia-introduces-two-new-400g-qsfp-dd-pluggable-coherent-optical-modules\/."},{"key":"ref_24","unstructured":"(2023, September 27). II-VI Coherent Corp. Coherent Corp 400G ZR+ QSFP-DD-DCO High Tx Output Power Optical Transceiver. Available online: https:\/\/ii-vi.com\/product\/400g-zr-qsfp-dd-dco-high-tx-output-power-optical-transceiver\/."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"13591","DOI":"10.1364\/OE.457769","article-title":"Feature issue introduction: Ultra-wideband optical communications","volume":"30","author":"Zhuge","year":"2022","journal-title":"Opt. Express"},{"key":"ref_26","unstructured":"(2023, September 25). ITU-T G-Series Recommendations\u2014Supplement 39. Optical System Design and Engineering Considerations. Available online: https:\/\/www.itu.int\/rec\/T-REC-G.Sup39\/en."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Agrawal, G.P. (2019). Chapter 3 of Nonlinear Fiber Optics, Elsevier, Academic Press. [5th ed.].","DOI":"10.1016\/B978-0-12-817042-7.00018-X"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1742","DOI":"10.1109\/JPROC.2022.3203215","article-title":"Devices and Fibers for Ultrawideband Optical Communications","volume":"110","author":"Renaudier","year":"2022","journal-title":"Proc. IEEE"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Napoli, A., Costa, N., Fischer, J.K., ao Pedro, J., Abrate, S., Calabretta, N., Forysiak, W., Pincemin, E., Gimenez, J.P.-P., and Matrakidis, C. (2018, January 2\u20135). Towards multiband optical systems. Proceedings of the Advanced Photonics Congress 2018, Zurich, Switzerland.","DOI":"10.1364\/NETWORKS.2018.NeTu3E.1"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Kraemer, R., Santana, H., Zhang, S., Pan, B., and Calabretta, N. (2022, January 3\u20136). Lossless SOA-based Multi-band OADM Nodes in Metro Networks. Proceedings of the OptoElectronics and Communications Conference (OECC) and International Conference on Photonics in Switching and Computing (PSC), Toyama, Japan.","DOI":"10.23919\/OECC\/PSC53152.2022.9850111"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"2136","DOI":"10.1109\/COMST.2015.2466458","article-title":"Survey and Evaluation of Space Division Multiplexing: From Technologies to Optical Networks","volume":"17","author":"Saridis","year":"2015","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1186","DOI":"10.1364\/OPTICA.427631","article-title":"Space-division multiplexing for optical fiber communications","volume":"8","author":"Puttnam","year":"2021","journal-title":"Optica"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Sakaguchi, J., Klaus, W., Delgado Mendinueta, J.M., Puttnam, B.J., Lu\u00eds, R.S., Awaji, Y., Wada, N., Hayashi, T., Nakanishi, T., and Watanabe, T. (2015, January 22\u201326). Realizing a 36-core, 3-mode fiber with 108 spatial channels. Proceedings of the Optical Fiber Communications Conference, Los Angeles, CA, USA.","DOI":"10.1364\/OFC.2015.Th5C.2"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"24983","DOI":"10.1364\/OE.25.024983","article-title":"Bandwidth density as a figure of merit for few-mode multi-core fibers","volume":"25","author":"Hayashi","year":"2017","journal-title":"Opt. Express"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1786","DOI":"10.1109\/JPROC.2022.3182049","article-title":"Randomly-Coupled Multi-Core Fiber Technology","volume":"110","author":"Hayashi","year":"2022","journal-title":"Proc. IEEE"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"673","DOI":"10.1109\/LPT.2019.2903717","article-title":"A universal specification for multicore fiber crosstalk","volume":"31","author":"Winzer","year":"2019","journal-title":"IEEE Photon. Technol. Lett."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"0601109","DOI":"10.1109\/JPHOT.2016.2523993","article-title":"Impact of intercore crosstalk on the transmission distance of QAM formats in multicore fibers","volume":"8","author":"Puttnam","year":"2016","journal-title":"IEEE Photon. J."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1109\/MCOM.2015.7045405","article-title":"Next generation sliceable bandwidth variable transponders","volume":"53","author":"Sambo","year":"2015","journal-title":"IEEE Commun. Mag."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"5232","DOI":"10.1109\/JLT.2021.3097163","article-title":"Point-to-Multipoint Optical Networks Using Coherent Digital Subcarriers","volume":"39","author":"Welch","year":"2021","journal-title":"J. Light. Technol."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"593","DOI":"10.1364\/JOCN.10.000593","article-title":"Programmable SDN-enabled S-BVT based on hybrid electro-optical MCM","volume":"10","author":"Nadal","year":"2018","journal-title":"J. Opt. Commun. Netw."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"A103","DOI":"10.1364\/JOCN.470434","article-title":"Experimental demonstration of a metro area network with terabit-capable sliceable bit-rate-variable transceivers using directly modulated VCSELs and coherent detection","volume":"15","author":"Fabrega","year":"2023","journal-title":"J. Opt. Commun. Netw."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"A187","DOI":"10.1364\/JOCN.411964","article-title":"Programmable VCSEL-based photonic system architecture for future agile Tb\/s metro networks","volume":"13","author":"Moreolo","year":"2021","journal-title":"J. Opt. Commun. Netw."},{"key":"ref_43","doi-asserted-by":"crossref","unstructured":"Fontaine, N.K., Mazur, M., Ryf, R., Chen, H., Dallachiesa, L., and Neilson, D.T. (2021, January 13\u201316). 36-thz bandwidth wavelength selective switch. Proceedings of the 2021 European Conference on Optical Communication (ECOC), Bordeaux, France.","DOI":"10.1109\/ECOC52684.2021.9606114"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"23007","DOI":"10.1364\/OE.22.023007","article-title":"Simple analytical expression for crosstalk estimation in homogeneous trench-assisted multi-core fibers","volume":"22","author":"Ye","year":"2014","journal-title":"Opt. Express"},{"key":"ref_45","unstructured":"(2017). Characteristics of a Single-Mode Optical Fibre and Cable (Standard No. ITU-T G.652)."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"3037","DOI":"10.1109\/JLT.2020.2969457","article-title":"SDN-Enabled S-BVT for Disaggregated Networks: Design, Implementation and Cost Analysis","volume":"38","author":"Nadal","year":"2020","journal-title":"J. Light. Technol."}],"container-title":["Future Internet"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1999-5903\/15\/12\/381\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T21:31:47Z","timestamp":1760131907000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1999-5903\/15\/12\/381"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,11,27]]},"references-count":46,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2023,12]]}},"alternative-id":["fi15120381"],"URL":"https:\/\/doi.org\/10.3390\/fi15120381","relation":{},"ISSN":["1999-5903"],"issn-type":[{"type":"electronic","value":"1999-5903"}],"subject":[],"published":{"date-parts":[[2023,11,27]]}}}