Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Valeria Vercesi"'
Publikováno v:
Photonics, Vol 1, Iss 2, Pp 154-161 (2014)
We demonstrate polarization-independent simultaneous all-optical phase-preserving amplitude regeneration and wavelength conversion of NRZ differential phase shift keying (DPSK) data by four-wave mixing (FWM) in a semiconductor optical amplifier (SOA)
Externí odkaz:
https://doaj.org/article/3393e4393757410fb26bbdf7a8387688
Publikováno v:
OFC
Scopus-Elsevier
Scopus-Elsevier
We performed photonic sampling of 6 Gbaud 16-QAM signals at 20 GHz sampling frequency by interleaving and time-aligning two 10 GHz Nyquist optical sampling pulse trains using a SMF as the dispersive medium.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae670b062ee63d6d94a84d87dea9d5a9
https://doi.org/10.1364/ofc.2018.m2g.3
https://doi.org/10.1364/ofc.2018.m2g.3
Publikováno v:
Journal of Lightwave Technology. 33:4731-4737
We experimentally demonstrate enhanced spectral efficiency (SE) within flexible multicasting operation in a periodically poled Lithium Niobate (PPLN) waveguide. Replicas of quadrature phase-shift keying (QPSK) and 16 quadrature amplitude modulation c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e0306b08a5e336d9e46eae666f0c0f8
https://doi.org/10.1109/jlt.2015.2480423
https://doi.org/10.1109/jlt.2015.2480423
Publikováno v:
TIWDC
All-optical phase-preserving amplitude regeneration is an effective method to reduce nonlinear phase noise in long-haul transmission of phase-modulated signals. Here we review the latest results on a proposed differential phase shift keying (DPSK) re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93a3cb74654c36ec5b13c17e06b93348
https://doi.org/10.1109/tiwdc.2015.7323335
https://doi.org/10.1109/tiwdc.2015.7323335
Autor:
Daniel Onori, Antonella Bogoni, Filippo Scotti, Francesco Laghezza, Arismar Cerqueira Sodré, Mirco Scaffardi, Valeria Vercesi
A novel architecture of an integrated photonic assisted radar-lidar system based on a single mode-locked laser is proposed and demonstrated. The lidar exploits a multi-frequency optical signal with tunable tones separation allowing a dynamic tradeoff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf44f81340ccb01c1b95604e364d1403
http://hdl.handle.net/11382/503958
http://hdl.handle.net/11382/503958
Autor:
M. Scaffardi, Antonella Bogoni, Antonio Malacarne, Francesco Laghezza, Claudio Porzi, Filippo Scotti, Daniel Onori, Giovanni Serafino, Sergio Pinna, Valeria Vercesi, Emma Lazzeri, Paolo Ghelfi
Publikováno v:
Optical Fiber Communication Conference
Scopus-Elsevier
OFC
Scopus-Elsevier
OFC
This work shows the concept, performance, and field-trials of the first photonics-based radar. The comparative in-field experiments in aerial and naval scenarios against a state-of-the-art commercial system show the photonics potentials in enabling s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::070df6978cd67677771a53a96de2b431
Publikováno v:
OFC
Scopus-Elsevier
Scopus-Elsevier
A mode-locked laser-based dual-frequency lidar with tunable tones separation is demonstrated, allowing a dynamic tradeoff among robustness and sensitivity of measurements and enabling integration with photonic-based radar. Velocity measurements for d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38cfeb7835914523bf49e3c1b9b0878c
https://doi.org/10.1364/ofc.2015.m3e.4
https://doi.org/10.1364/ofc.2015.m3e.4
Publikováno v:
ONDM
We experimentally demonstrate hitless multiwavelength source reconfiguration for flexible optical networks. The source is a PPLN-based tunable frequency comb generator that provides equally spaced subcarriers with reconfigurable spacing. The subcarri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf10caf4bdcdb00bd5c1516caedb2183
http://hdl.handle.net/11382/503967
http://hdl.handle.net/11382/503967
Autor:
Antonella Bogoni, Valeria Vercesi, Francesco Laghezza, Daniel Onori, Filippo Scotti, Mirco Scaffardi
We propose a novel architecture for implementing a dual-frequency lidar (DFL) exploiting differential Doppler shift measurement. The two frequency tones, needed for target velocity measurements, are selected from the spectrum of a mode-locked laser o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9b7c55dfc06c2748ad1cd8313fc9a5f
http://hdl.handle.net/11382/503853
http://hdl.handle.net/11382/503853
Autor:
Piero Castoldi, Valeria Vercesi, Filippo Cugini, Nicola Sambo, Antonella Bogoni, Mirco Scaffardi
Two cost-effective implementations of optical multiplexing architecture are demonstrated. A number of 10-Gb/s on/off-keying tributaries are multiplexed into a 20- or 40-Gb/s (dual polarization) differential quadrature phase shift keying and optically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebd8dee4a7e2a8dbf64c9455e1f2f410
http://hdl.handle.net/11382/475375
http://hdl.handle.net/11382/475375