Výsledky vyhledávání - "Lucarz, Frédéric"

Projeto e Análise Numérica de um Conversor Digital- Analógico Óptico de 4-bit Para Sinais de Rádio-sobre-Fibra Digitalizados

Autor: RIBEIRO, Ricardo M., Nunes Henrique Silva, Vinicius, BARBERO, Andrés P.L., LUCARZ, Frédéric, Fracasso, Bruno

Publikováno v: MOMAG 2014 : 16º SBMO Symposio Brasileiro de Micro-ondas e Optoeletrônica, 11º CBMag Congresso Brasileiro de Eletromagnetismo
MOMAG 2014 : 16º SBMO Symposio Brasileiro de Micro-ondas e Optoeletrônica, 11º CBMag Congresso Brasileiro de Eletromagnetismo, Aug 2014, Curitiba, Brazil. pp.968

International audience; Neste artigo é descrito um conversor digital-analógico óptico para sinais do tipo Rádio-sobre-Fibra (RoF) previamente fotonicamente digitalizados. O dispositivo denominado o-DRoF-R compreende o encadeamento de diversos int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::8dc5bf9219e32cc61aa192fb972de420
https://hal.archives-ouvertes.fr/hal-01258927

Zobrazit plný text záznamu

Electrical Modulation of a Semiconductor Optical Amplifier Inserted into a Sagnac Loop by Injecting Microwave Carrier

Autor: Ribeiro , Ricardo M., Barbero , Andrés P.L., Silva , Vinicius N.H., Lucarz , Frédéric, Fracasso , Bruno

Publikováno v: Proceedings ICTON 2014 : 16th International Conference on Transparent Optical Networks
ICTON 2014 : 16th International Conference on Transparent Optical Networks
ICTON 2014 : 16th International Conference on Transparent Optical Networks, Jul 2014, Graz, Austria. Proceedings ICTON 2014 : 16th International Conference on Transparent Optical Networks, 2014
ICTON 2014 : 16th International Conference on Transparent Optical Networks, Jul 2014, Graz, Austria

International audience; This paper describes for the first time, the design and numerical simulations of an optical modulator from a semiconductor optical amplifier (SOA) inserted into a fibre-optic Sagnac loop electrically modulated by a microwave c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::38fcb4caee04e86bef9545dc566f33bb
https://hal.archives-ouvertes.fr/hal-01810214/file/Paper_Digixing_Modulator_Final.pdf

Zobrazit plný text záznamu

Automatic gain control circuit with variable reaction time adjusted in an analogue manner and receiver device comprising such a circuit

Autor: LUCARZ, Frédéric, Bourreau, Daniel, LIU, Hexin, Pajusco, Patrice

Publikováno v: France, N° de brevet: 2998119. 14255. 2014, pp.42

There is proposed an automatic gain control circuit (300a) comprising an entirely analogue feedback loop intended to adjust, in real time, the gain of the circuit according to a plurality of possible reaction time values, so as to provide an output s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c3bf139110a14180db5ca5b149ed65f3
https://hal.archives-ouvertes.fr/hal-01218009

Zobrazit plný text záznamu

A Thresholder for All-Optical Digitising Radio-over-Fibre Transceivers

Autor: Ribeiro, Ricardo, Lucarz, Frédéric, Fracasso, Bruno

Publikováno v: Proceedings OMDM 2013 : 17th international conference on Optical Network Design and Modeling
OMDM 2013 : 17th international conference on Optical Network Design and Modeling
OMDM 2013 : 17th international conference on Optical Network Design and Modeling, Apr 2013, Brest, France. pp.161-166

International audience; This paper describes an optical Thresholder (o-Thresholder) intended to be part of a transmitter module for future all-optical Digitising Radio-over-Fibre (o-DRoF)transceivers. The proposed device is based on an Attenuation-Im

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::984f31b3e7290ae064fb30caa4823527
https://hal.archives-ouvertes.fr/hal-01226769

Zobrazit plný text záznamu

Investigations of coverage and energy efficiency in radio over fiber distributed antenna systems

Autor: Josse, Yves, Lucarz, Frédéric, Fracasso, Bruno, Pajusco, Patrice

Publikováno v: GROWAN 2011: Green Radio-over-Fibre and All-Optical Wireless Access Networks
GROWAN 2011: Green Radio-over-Fibre and All-Optical Wireless Access Networks, Jun 2011, Brest, France

International audience; Distributed antenna systems (DAS) are known to improve coverage and performance of wireless communications in indoor environments. In this work, the energy efficiency of a DAS using radio over fiber (RoF) are evaluated and com

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::705fb00a341df27609e36767482141de
https://hal.archives-ouvertes.fr/hal-00725187/file/GROWAN2011_export_HAL.pdf

Zobrazit plný text záznamu

Semiconductor laser sources of millimetre-wave carriers for radio-over-fibre systems

Autor: HALL, Trevor, LUCARZ, Frédéric, De Bougrenet De La Tocnaye, Jean-Louis

Publikováno v: Workshop "Laser et communication"
Workshop "Laser et communication", Dec 2010, Paris, France

Techniques for optical generation of millimetre-wave RF carriers are presented. In particular, integrated semiconductor lasers based on lateral coupling of optical modes in a distributed feedback structure are discussed together with preliminary expe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7e2a7adf89e514e6c2a80b1c5a0d5566
https://hal.archives-ouvertes.fr/hal-00947210

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání