RESULTS FROM 1 TO 7 OF 7

2021, Articolo in rivista, ENG

5G NR RoF System Based on a Monolithically Integrated Multi-Wavelength Transmitter

M. Seda Borsato Cunha, E. Saia Lima, N. Andriolli, D. H. Spadoti, G. Contestabile, and A. Cerqueira Sodré Jr.

We propose and demonstrate the use of a monolithically integrated multi-wavelength transmitter for multiband 5G new radio (NR) radio-over-fiber (RoF) systems, simultaneously operating in the standalone (SA) and non-standalone (NSA) modes. The novel integrated photonic circuit, integrating eight tunable and directly modulated distributed feedback lasers, aims to reduce the transmitter complexity and footprint, enabling compact, high-performance and low-cost 5G solutions for frequencies up to 10/GHz. We report the implementation of a 4G/5G shared optical mobile fronthaul using two 5G NR and a LTE-A signals, evaluated in two distinct scenarios, as a function of root mean square error vector magnitude (EVMRMS) and in accordance to the 3GPP Release 15 requirements. In the first phase, three optical carriers in C-band are independently modulated with three mentioned RF signals, whereas subcarrier multiplexing (SCM) is applied to the second scenario for jointly modulating an optical carrier at 1554 nm. Gbit/s throughput is demonstrated for validating the applicability of our monolithically integrated multi-wavelength transmitter either for enabling multiapplication and/or diverse RF standards, using a single wavelength or multiservice exploiting different wavelengths from an unique optical source.

IEEE journal of selected topics in quantum electronics 27 (2)

DOI: 10.1109/JSTQE.2020.3017140

2019, Annual report, ITA

RELAZIONE ATTIVITA' LEGAL ENTITY APPOINTED REPRESENTATIVE (LEAR) DEL CNR

SUSANNA TOSI

RELAZIONE ATTINENTE ALLE ATTIVITA' SVOLTE IN QUALITA' DI LEAR DEL CNR NELL'ANNO 2019. il LEAR è una persona formalmente incaricata di svolgere determinati compiti per conto della organizzazione che intende partecipare ai programmi di finanziamento dell'UE gestiti attraverso il sistema di scambio elettronico (EES) del portale del partecipante. Le attività in capi al LEAR di una organizzazione si stanno evolvendo sia in termini di complessità che di quantità degli adempimenti.

2018, Contributo in atti di convegno, ENG

High bandwidth density optically interconnected Terabit/s Boards

Romagnoli, Marco; De Angelis, Gabriele; Tallone, Luigi; Sorianello, Vito; Tirelli, Stefano; Snyder, Bradley; De Heyn, Peter; Ban, Yoojin; Bogaerts, Lieve; Verheyen, Peter; Miller, Andy; Van Campenhout, Joris; Pantouvaki, Marianna; Absil, Philippe; Bauwelinck, Johan; Yin, Xin; Van Thourhout, Dries; Sandez, Joan Juvert; Osellame, Roberto; Vazquez, Rebeca Martinez; Lopes, Diogo P.; Preve, Giovanni Battista; Serrano Rodrigo, Aina A.; Galli, Paola; Chiaretti, Guido; Testa, Francesco; Bianchi, Alberto; Gonzalez, Ana Belen

Within the European Project TERABOARD, a photonic integration platforms including electronic-photonic integration is developed to demonstrate high bandwidth high-density modules and to demonstrate cost and energy cost target objectives. Large count high bandwidth density EO interfaces for onboard and intra-data center interconnection are reported. For onboard large count interconnections a novel concept based on optical-TSV interconnection platform with no intersections and no WDM multiplexing is reported. All input/output coupler arrays based on a pluggable silica platform are reported as well.

SPIE 2018, 30/01/2018Proceedings of SPIE, the International Society for Optical Engineering 10560

DOI: 10.1117/12.2295897

2014, Linee Guida (Guide lines), ITA

BREVI ISTRUZIONI SU COME RISPONDERE AD UNA CALL HORIZON 2020 CREANDO IL GIUSTO COLLEGAMENTO AL PIC CNR

SUSANNA TOSI

LE LINEE GUIDA ILLUSTRANO COME RISPONDERE AD UNA CALL HORIZON 2020 CREANDO IL GIUSTO COLLEGAMENTO CON IL PIC CNR (999979500)

2014, Articolo in rivista, ENG

Particle Methods for Nonequilibrium Hypersonic and Plasma Flows

D. Bruno, A. Panarese, P. Diomede, S. Longo, F. Taccogna, P. Minelli, S.T. Surzhikov, A.S. Dikaljuk, P. De Palma and M.D. de Tullio

Kinetic modelling of nonequilibrium flows is described as it applies to hypersonic phenomenology. A Monte Carlo method is described for the study of species separation on shock wave fronts; a Particle in Cell with Monte Carlo Collisions (PIC/MCC) technique is described for the simulation of dust in plasma flows; modelling of nonequilibrium radiation in shock heated gases; implementation of slip models for the description of separation zones occurring in shock- boudary layer interactions.

The Open plasma physics journal 7, pp. 88–100

DOI: 10.2174/1876534301407010088

2011, Contributo in atti di convegno, ENG

Kinetic divertor modeling

Taccogna, F.; Minelli, P.; Bruno, D.

The coupled dynamics and kinetics between gas and plasma in the divertor region is studied by means of a one-dimensional Particle in Cell-Direct Simulation Monte Carlo (PIC-DSMC) model. In particular, the collision-induced vibrational excitation/relaxation of H2 molecules and particle-surface interaction (vibrational relaxation and recombinative desorption) have been considered in detail to estimate the importance of plasma volumetric recombination by molecular assisted reaction (MAR). Spatially resolved results show that MAR processes are effective very close to the divertor plate in a region smaller than 1.5 mm from the divertor plate. For regions more distant the ionization of atoms, produced by MAR, starts to make molecular assisted recombination an ineffective reaction.

38th EPS Conference on Plasma Physics, 27/06/2011-01/07/2011

2006, Contributo in atti di convegno, ENG

Modelling of carbon nanotube-based devices: from nanoFETs to THz emitters

Di Carlo, Aldo and Pecchia, Alessandro and Petrolati, Eleonora and Paoloni, Claudio

In the first part of the present contribution, we will report on transport calculations of nanoscaled devices based on Carbon Nanotubes obtained via self-consistent density-functional method coupled with non-equilibrium Greens function approaches. In particular, density functional tight-binding techniques are very promising due to their intrinsic efficiency. This scheme allows treatment of systems comprising a large number of atoms and enables the computation of the current flowing between two or more contacts in a fully self-consistent manner with the open boundary conditions that naturally arise in transport problems. We will give a description of this methodology and application to field effect transistor based on Carbon nanotubes. The advances in manufacturing technology are allowing new opportunities even for vacuum electron devices producing radio-frequency radiation. Modem micro and nano-technologies can overcome the typical severe limitations of vacuum tube devices. As an example, Carbon Nanotubes used as cold emitters in micron-scaled triodes allow for frequency generation up to THz region. The purpose of the second part of this contribution will be a description of the modelling of Carbon Nanotube based vacuum devices such as triodes. We will present the calculation of important figures of merit and possible realizations.

Conference on Nanomodeling II, San Diego, CA, AUG 13-15, 2006

DOI: 10.1117/12.680305

InstituteSelected 0/2
    IFN, Istituto di fotonica e nanotecnologie (1)
    NANOTEC, Istituto di Nanotecnologia (1)
AuthorSelected 0/9
    Bruno Domenico (2)
    Taccogna Francesco (2)
    Tosi Susanna (2)
    Andriolli Nicola (1)
    Longo Savino (1)
    Martinez Vazquez Rebeca (1)
    Minelli Pierpaolo (1)
    Osellame Roberto (1)
    Pecchia Alessandro (1)
TypeSelected 0/4
    Contributo in atti di convegno (3)
    Articolo in rivista (2)
    Annual report (1)
    Linee Guida (Guide lines) (1)
Research programSelected 0/1
    MD.P03.027.001, Dinamica di Plasmi e Laser-Plasmi (1)
EU Funding ProgramSelected 0/2
    FP7 (1)
    H2020 (1)
EU ProjectSelected 0/2
    PHYS4ENTRY (1)
    Teraboard (1)
YearSelected 0/6
    2014 (2)
    2006 (1)
    2011 (1)
    2018 (1)
    2019 (1)
    2021 (1)
LanguageSelected 0/2
    Inglese (5)
    Italiano (2)
Keyword

PIC

RESULTS FROM 1 TO 7 OF 7