149827 20251017144547.0 doi 10.1016/j.optcom.2014.12.062 sideral 89265 ART-2015-89265 eng Fabrega, Josep M. OFDM subcarrier monitoring using high resolution optical spectrum analysis 2015 Access copy available to the general public Unrestricted In this paper, we demonstrate in-band OSNR monitoring of individual subcarriers in optical OFDM using a high-resolution optical spectrum analyzer. The relationships between OSNR, electrical SNR and BER at the receiver are experimentally analyzed and compared to theoretical results. A linear dependency in dB is found between electrical SNR and subcarrier OSNR for total OSNR values below 26 dB. Above this limit, the correlation degree decreases due to the electrical SNR degradation at the edge subcarriers. The BER analysis per subcarrier also shows a clear correlation with the proposed in-band optical measurements. info:eu-repo/grantAgreement/EC/FP7/317999/EU/Industry-Driven Elastic and Adaptive Lambda Infrastructure for Service and Transport Networks/IDEALIST info:eu-repo/grantAgreement/ES/MICYT/TSI-020100-2011-423 info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2012-38119 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 1.48 2015 OPTICS 51 / 91 = 0.56 2015 Q3 T2 0.673 2015 Electrical and Electronic Engineering 2015 Q1 Physical and Theoretical Chemistry 2015 Q2 Electronic, Optical and Magnetic Materials 2015 Q2 Atomic and Molecular Physics, and Optics 2015 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Sevillano, Pascual Universidad de Zaragoza (orcid)0000-0002-4094-3826 Svaluto Moreolo, Michela Villafranca, Asier Vílchez, F. Javier Subías, Jesús M. Universidad de Zaragoza (orcid)0000-0002-2244-170X 2002 385 Universidad de Zaragoza Dpto. Física Aplicada Área Física Aplicada 342 (2015), 144-151 Opt. commun. Optics Communications 0030-4018 1809338 http://zaguan.unizar.es/record/149827/files/texto_completo.pdf Postprint 1110246 http://zaguan.unizar.es/record/149827/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:149827 articulos driver 2025-10-17-14:10:06 ARTICLE