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High Speed Space Switches for Coherent Optical Networks

Grant number: 14/18791-7
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): February 01, 2015
Effective date (End): January 31, 2018
Field of knowledge:Engineering - Electrical Engineering - Telecommunications
Principal researcher:Evandro Conforti
Grantee:Tiago Sutili
Home Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


A 3 year Doctoral scholarship for Tiago Sutili is solicited. The candidate has completed MSc under Fapesp scholarship (Proc. 12/11423-7), with grade A in all disciplines. He presented the work in a Brazilian Congress (Momag2014) and prepared a patent application. He is an electrical engineer from the University of Passo Fundo, having had excellent grades in undergraduate program (9.07 average). In the ENADE (National Examination Performance of students), for the year of completion of his graduation, the candidate hit a note equal to the national maximum among students graduating in electrical engineering. The main goal relates to advanced technologies for optical space switches based on semiconductor optical amplifiers (SOAs), aiming high speed optical coherent communications networks, using a test bed to be completed by Prof. Conforti (PITE Project-Fapesp-Padtec proc. 56,024-4 entitled "Optical Coherent Technologies"). The Unicamp cooperation with the Brazilian industry Padtec has already been renewed for another 3 years, and a new project PITE is to be sent to Fapesp, also under the coordination of Prof. Conforti. The doctoral dissertation involves the analysis of the effects on bit error rates (penalties), when at least two adjacent optical channels are being switched from one fiber to the other, through the above-mentioned space switches. The optical channels will be modulated in DQPSK and/or multilevel 16-QAM, with electronic rate from 2 up to 56 Gbit/s.

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GALDIERI, FLAVIO J.; SUTILI, TIAGO; MELNIKOFF, NIKOLAI; BORDONALLI, ALDARIO C.; CONFORTI, EVANDRO. Influence of exterior acoustic noise on narrow linewidth laser measurements using self-homodyne optical fiber interferometer. OPTIK, v. 204, FEB 2020. Web of Science Citations: 0.
TAGLIETTI, BRUNO; SUTILI, TIAGO; FIGUEIREDO, RAFAEL C.; FERRARI, RAFAEL; CONFORTI, EVANDRO. Semiconductor optical amplifier space switch BER improvement and guard-time reduction through feed-forward filtering. Optics Communications, v. 426, p. 295-301, NOV 1 2018. Web of Science Citations: 2.
P. ROCHA; C. M. GALLEP; T. SUTILI; E. CONFORTI. Calibration of TLM Model for Semiconductor Optical Amplifier by Heuristic Parameters' Extraction. J. Microw. Optoelectron. Electromagn. Appl., v. 17, n. 2, p. -, Jun. 2018.
FIGUEIREDO, RAFAEL C.; SUTILI, TIAGO; RIBEIRO, NAPOLEAO S.; GALLEP, CRISTIANO M.; CONFORTI, EVANDRO. Semiconductor Optical Amplifier Space Switch With Symmetrical Thin-Film Resistive Current Injection. Journal of Lightwave Technology, v. 35, n. 2, p. 280-287, JAN 15 2017. Web of Science Citations: 7.
SUTILI, TIAGO; FIGUEIREDO, RAFAEL C.; CONFORTI, EVANDRO. Laser Linewidth and Phase Noise Evaluation Using Heterodyne Offline Signal Processing. Journal of Lightwave Technology, v. 34, n. 21, p. 4933-4940, NOV 1 2016. Web of Science Citations: 6.
SUTILI, TIAGO; CONFORTI, EVANDRO. Optical Modulator Half-Wave Voltage Measurement Using Opposite-Phase Sine Waves. Journal of Lightwave Technology, v. 34, n. 9, p. 2152-2157, MAY 1 2016. Web of Science Citations: 5.

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Filed patent(s) as a result of this research project

CHAVE ELECTRO-ÓPTICA ESPACIAL AMPLIFICADA COM ACOPLADOR A FILME FINO DE DUPLA ENTRADA BR1020170066061 - Padtec S/A ; Universidade Estadual de Campinas (UNICAMP) . Evandro Conforti; Cristiano de Mello Gallep; Napoleão dos Santos Ribeiro; Tiago Sutili; Rafael Carvalho Figueiredo - March 2017, 28

MÉTODO DE MEDIÇÃO DE GORJEIO E EFEITOS NÃO LINEARES BR1020170158845 - Padtec S/A ; Universidade Estadual de Campinas (UNICAMP) . Evandro Conforti; Cristiano de Mello Gallep; Tiago Sutili; Bruno Taglietti - July 2017, 25