Now showing items 1-20 of 28

    • A universal specification for multicore fiber crosstalk 

      Gené Bernaus, Joan M.; Winzer, Peter J. (2019-05-01)
      Article
      Open Access
      In order to transition multi-core fiber (MCF) technologies from their research state to volume production, the key design specifications have to be broadly agreed upon, first and foremost an acceptable level of inter-core ...
    • ALLIANCE Project: Architecting a knowledge-defined 5G-enabled network infrastructure 

      Careglio, Davide; Spadaro, Salvatore; Cabellos Aparicio, Alberto; Lázaro Villa, José Antonio; Perelló Muntan, Jordi; Barlet Ros, Pere; Gené Bernaus, Joan M.; Paillissé Vilanova, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      Leaving the current 4th generation of mobile communications behind, 5G will represent a disruptive paradigm shift integrating access networks, ultra-high capacity access/metro/core optical networks and intra-datacentre ...
    • Assessment of Flex-grid/SDM backbone networks under inter-core XT-limited transmission reach 

      Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Lázaro Villa, José Antonio; Pagès Cruz, Albert; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Open Access
      In the present paper, we estimate the transmission reach of the optical signals through several state-of-the-art multi-core fibers reported in the literature considering ASE noise and inter-core crosstalk. Using these ...
    • Capacity quantification of joint-switching-enabled flex- grid/SDM optical backbone networks 

      Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (Optical Society of American (OSA), 2017)
      Conference report
      Open Access
      We quantify the network capacity scaling from 7 to 30 spatial channels. While multifiber provides a 5x capacity increase, MCF limits it to 4x and 2x in national and continental backbone networks, respectively.
    • Cost-effective spatial super-channel allocation in Flex-Grid/MCF optical core networks 

      Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (2018-01-01)
      Article
      Open Access
      Space Division Multiplexing (SDM) is a key technology to cope with the bandwidth limitations of single mode fibers. Multi-Core Fibers (MCFs) are considered as a promising candidate technology to implement SDM, due to their ...
    • Dual polarization full-field signal waveform reconstruction using intensity only measurements for coherent communications 

      Chen, Haoshuo; Fontaine, Nicolas K.; Gené Bernaus, Joan M.; Ryf, Roland; Neilson, David T.; Raybon, Gregory (Institute of Electrical and Electronics Engineers (IEEE), 2020-05-01)
      Article
      Open Access
      Conventional optical coherent receivers capture the full electrical field, including amplitude and phase, of a signal waveform by measuring its interference against a stable continuous-wave local oscillator (LO). In optical ...
    • Evaluation of Add/Drop flexibility requirements in future SDM-enabled ROADMs 

      Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Klinkowski, Miroslaw; Comellas Colomé, Jaume; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      In this paper, we evaluate five different architectures for implementing the Add/Drop module of future Spatial Division Multiplexing (SDM)-enabled Re-configurable Optical Add & Drop Multiplexers (ROADMs) with different ...
    • Evaluation of core-continuity-constrained ROADMs for flex-grid/MCF optical networks 

      Moreno Muro, Francisco Javier; Rumipamba Zambrano, Rubén Darío; Pavón Mariño, Pablo; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-01)
      Article
      Open Access
      To effectively keep pace with the global IP traffic growth forecasted in the years to come, flex-grid over multi-core fiber (MCF) networks can bring superior spectrum utilization flexibility, as well as bandwidth scalability ...
    • Examen Final 

      Junyent Giralt, Gabriel; Soneira Ferrando, M. José; Gené Bernaus, Joan M. (Universitat Politècnica de Catalunya, 2016-06-02)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Gené Bernaus, Joan M. (Universitat Politècnica de Catalunya, 2014-06-18)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Gené Bernaus, Joan M.; Junyent Giralt, Gabriel (Universitat Politècnica de Catalunya, 2015-06-19)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Gené Bernaus, Joan M.; Junyent Giralt, Gabriel (Universitat Politècnica de Catalunya, 2015-01-14)
      Exam
      Restricted access to the UPC academic community
    • Examen Final 

      Junyent Giralt, Gabriel; Gené Bernaus, Joan M. (Universitat Politècnica de Catalunya, 2014-01-09)
      Exam
      Restricted access to the UPC academic community
    • Experimental demonstration of widely tunable rate/reach adaptation from 80 km to 12,000 km using probabilistic constellation shaping 

      Gené Bernaus, Joan M.; Chen, Xi; Cho, Junho; Chandrasekhar, Sethumadhavan; Winzer, Peter (2020)
      Conference report
      Open Access
      We experimentally demonstrate the rate/reach adaptability of probabilistically constellation-shaped quadrature amplitude modulation across from 80 km to 12,000 km using the same 32-GBaud transponder hardware and highlight ...
    • Fiber-Optic Communications 

      Gené Bernaus, Joan M. (Universitat Politècnica de Catalunya, 2010-09)
      Lecture notes
      Open Access
    • Flex-Grid/SDM backbone network design with inter-core XT-limited transmission reach 

      Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Pagès Cruz, Albert; Lázaro Villa, José Antonio; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2016-08-01)
      Article
      Restricted access - publisher's policy
      Spatial division multiplexing (SDM) has been presented as a key solution to circumvent the nonlinear Shannon limit of standard single-core fibers. To implement SDM, multi-core fiber (MCF) technology becomes a top candidate ...
    • Full-field, carrier-less, polarization-diversity, direct detection receiver based on phase retrieval 

      Chen, Haoshuo; Fontaine, Nicolas K.; Gené Bernaus, Joan M.; Ryf, Roland; Neilson, David T.; Raybon, Gregory (The Institution of Engineering and Technology (IET), 2019)
      Conference report
      Open Access
      We realize dual-polarization full-field recovery using intensity only measurements and phase retrieval techniques based on dispersive elements. 30-Gbaud QPSK waveforms are transmitted over 520-km standard single-mode fiber ...
    • Joint PMD and Chromatic Dispersion Compensation Using an MLSE 

      Gené Bernaus, Joan M.; Winzer, Peter J.; Chandrasekhar, Sethumandhavan; Kogelnik, Herwig (2006)
      Conference report
      Restricted access - publisher's policy
      Experimental investigations show that maximum likelihood sequence estimation (MLSE) in a 10.7 Gb/s non return-to-zero system improves by 60-70% the tolerance to first-order polarization mode dispersion (PMD), even in the ...
    • Modified duobinary polarization-shift keying transmission scheme 

      Gené Bernaus, Joan M.; Soler Rocasalbas, Marçal; Contreras Leyva, Miguel A.; Comellas Colomé, Jaume; Prat Gomà, Josep Joan (2003)
      Conference lecture
      Restricted access - publisher's policy
      A new version of duobinary polarization-shift keying scheme is proposed. The relocation of the duobinary filter at the receiver side and the optimization of both transmitter and receiver electrical filters offer a receiver ...
    • On the benefits of probabilistic constellation shaping in Flex-Grid/MCF dynamic optical backbone networks 

      Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      In this paper, we propose a novel methodology for estimating the worst-case spectral efficiency (b/s/Hz) of end-to-end paths across a Multi-Core Fiber (MCF)-enabled Flex-Grid optical network, accounting for physical link ...