Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Gianluca Berrettini"'
Publikováno v:
Advances in Lasers and Electro Optics
The need of direct measure and monitoring of ultra-fast signal in the time domain is rapidly increasing, being of interest in a large number of applications such as ultra-fast communication, biophotonics, sensing, large systems synchronization, dynam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce062aea109a2dad8b528f664198c02d
http://www.intechopen.com/articles/show/title/evolution-of-optical-sampling
http://www.intechopen.com/articles/show/title/evolution-of-optical-sampling
Autor:
Muhammad Imran, Piero Castoldi, Luca Poti, Gianluca Berrettini, Bishanka Brata Bhownik, Alberto Castro, Gianluca Meloni, Francesco Fresi, Francesco Paolucci, Filippo Cugini, Luis Velasco, Alessio Giorgetti
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
Universitat Jaume I
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
Universitat Jaume I
Control and data plane innovations are driving the evolution of flexible grid optical networks enabling more granular reservation of spectrum portion. On the one hand, the path computation element (PCE) is evolving toward the stateful architecture to
Autor:
Piero Castoldi, Gianluca Berrettini, Nicola Sambo, Luca Poti, Gianluca Meloni, Francesco Fresi
Publikováno v:
IEEE Communications Letters. 18:364-367
We propose and experimentally demonstrate a technique based on periodically-poled Lithium Niobate waveguide to achieve both frequency conversion and defragmentation in elastic (or flex-grid) optical networks. The technique is demonstrated in a lab tr
Autor:
Paulo André, Ch. Kouloumentas, Antônio Lúcio Teixeira, A. Maziotis, Nicola Calabretta, H.J.S. Dorren, Gianluca Meloni, Gianluca Berrettini, Hercules Avramopoulos, C. Reis, Antonella Bogoni, Tanay Chattopadhyay
Publikováno v:
Optik : International Journal for Light and Electron Optics, 124(16), 2327-2333. Elsevier
In this paper, different approaches to implement all-optical flip-flops, working with a synchronization signal, will be presented and compared. In this type of optical bistable devices, the information present at the inputs produces effects on the ou
Autor:
Nicola Sambo, Filippo Cugini, Luca Poti, Piero Castoldi, Gianluca Berrettini, Francesco Fresi, Gianluca Meloni, Francesco Paolucci, Marco Secondini
Publikováno v:
Journal of Lightwave Technology. 31:125-133
In flexi-grid optical networks, fragmentation of spectrum resources may significantly affect the overall network efficiency. Effective techniques for defragmentation (i.e., re-optimization) are then required to limit the wasting of spectrum resources
Autor:
Mirco Scaffardi, Gianluca Meloni, Gianluca Berrettini, Emma Lazzeri, An T. Nguyen, Antonella Bogoni, Luca Poti
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 18:847-858
All-optical digital circuits based on loop memories are demonstrated. These circuits are a variable optical buffer, an optical random access memory, an optical shift register, and an optical linear feedback shift register. Buffers are employed in net
Autor:
Antonella Bogoni, Gianluca Meloni, Gianluca Berrettini, Francesco Fresi, Mirco Scaffardi, Luca Poti, Nicola Andriolli, Piero Castoldi
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 13:1531-1539
A modular photonic interconnection network based on a combination of basic 2times2 all-optical nodes including a photonic combinatorial network for the packet contention management is presented. The proposed architecture is synchronous, can handle op
Autor:
Luca Poti, Mirco Scaffardi, Claudio Porzi, Gianluca Meloni, Antonio Malacarne, Antonella Bogoni, Giancarlo Prati, Paolo Ghelfi, Filippo Ponzini, Gianluca Berrettini
Publikováno v:
Optical Fiber Technology. 13:1-12
The virtually unlimited bandwidth of optical fibers has caused a great increase in data transmission speed over the past decade and, hence, stimulated high-demand multimedia services. Nowadays, opto-electronic conversion is still required at each net
Autor:
Antonella Bogoni, Giampiero Contestabile, Gianluca Berrettini, Giovanni Serafino, Filippo Scotti
Publikováno v:
IEEE Photonics Technology Letters. 23:1715-1717
We introduce a novel scheme for all-optical buffering based on a recirculating fiber loop with regenerative amplification by cross-gain compression in a semiconductor optical amplifier. Fifty circulations of 10-Gb/s packets with 1.2-dB power penalty
Publikováno v:
IEEE Photonics Technology Letters. 23:685-687
The concept of a novel solution for an n-bit all-optical dynamic random access memory for advanced functionalities in all-optical digital processing is investigated. The scheme is composed of a matrix of 1-bit memory elements, each one obtained by an