Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Jognes Panasiewicz"'
Publikováno v:
Sensors, Vol 24, Iss 9, p 2707 (2024)
This article presents a technique for reducing the stabilization length of steady-state modes in step-index plastic optical fibers (POFs), which is significant for sensor networks, Internet of Things, signal processing, and data fusion in sensor syst
Externí odkaz:
https://doaj.org/article/24101edef9334432989b679237d68a94
Publikováno v:
Photonics, Vol 10, Iss 12, p 1312 (2023)
The optical signal propagation used in satellite uplinks and downlinks is influenced by absorption, scattering, and changes in the atmospheric refractive index or turbulence, causing optical signal attenuation. A free space optics (FSO) communication
Externí odkaz:
https://doaj.org/article/e6aa848faf3048dab61686cc3a947c35
Autor:
Jognes Panasiewicz, Larissa A. D. Britto, Fabien Destic, Gefeson M. Pacheco, Angélique Rissons
Publikováno v:
Optical and Quantum Electronics.
The microwave photonic vector modulator (MPVM) sometimes shows an unmodulated carrier peak, which appears in the modulated signal. This peak results from an incorrect bias value or a Mach-Zehnder modulator (MZM) bias drift over time, which in turn le
Publikováno v:
2022 IEEE International Topical Meeting on Microwave Photonics (MWP).
This study proposes a new architecture for the phase detector in an all-digital Optical-Phase-Locked Loop (OPLL) to demodulate a digitally modulated optical signal from a long-distance Free Space Optics (FSO) communications system. The performance of
Autor:
Gefeson Mendes Pacheco, Abhijit Banerjee, Larissa Aguiar Dantas de Britto, Jognes Panasiewicz
Publikováno v:
Optical and Quantum Electronics. 53
An optoelectronic oscillator (OEO) configuration with a unique optical fiber length, followed by a dual-loop in the radiofrequency (RF) domain is proposed and studied. Such a configuration with a unique optical delay followed by an RF time delay enab
Autor:
A D Britto Larissa, Angélique Rissons, Jognes Panasiewicz, Fabien Destic, Gefeson Mendes Pacheco
This article presents a photonic circuit that achieves direct carrier QPSK modulation of an RF signal from an opto-electronic oscillator (OEO) suitable for satellite data transmitter. The circuit was implemented with three Mach-Zehnder optical modula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33704194bba791c1b90f8b337a9804c2
https://oatao.univ-toulouse.fr/23753/
https://oatao.univ-toulouse.fr/23753/
This paper addresses the evolution of the photonic QPSK modulator setup previously reported. This second generation setup used two laser sources and the bias tee was replaced by a power combiner. As a result, the second setup enables one to reach hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f66eef1f0cb92ef37f8f72541d0408a2
https://oatao.univ-toulouse.fr/23749/
https://oatao.univ-toulouse.fr/23749/
This study describes the generation of microwave signals by an optoelectronic oscillator, OEO. The delay of the OEO was made in the optical domain as well in the radio frequency (RF) domain. The constructed OEO was proposed for embedded applications,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac7629cc841f3fdb598e6f9a4aa27b22
https://oatao.univ-toulouse.fr/23750/
https://oatao.univ-toulouse.fr/23750/
This article presents a photonic circuit that achieves direct carrier BPSK modulation of a RF signal from an opto-electronic oscillator suitable for satellite telemetry and control. The circuit was implemented with two Mach-Zehnder optical modulators
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::603fa8a71a2131284afda28fc7468421
https://oatao.univ-toulouse.fr/23751/
https://oatao.univ-toulouse.fr/23751/