CV Lattes
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Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação (FEEC) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Gianni Masaki Tanaka Portela is a researcher at the University of Campinas (Unicamp). He completed the Lic. course in Mathematics at the State University of Para (Uepa) in 2006 and the B.S., M.Sc. and Ph.D. courses in Electrical Engineering at the Federal University of Para (UFPA) in 2007, 2009 and 2015, respectively. He worked as a mathematics teacher in 2008 and, from 2010 to 2012, as an electrical engineer in the Brazilian public service. He has been awarded the 2016 CAPES Thesis Award in the Engineering IV area (Electrical Engineering and Biomedical Engineering) and has experience with scientific research at the postdoctoral level at the Federal University of Para and at the University of Campinas, as well as at the Tokyo Institute of Technology (Japan). His current research interests include devices for applications in integrated photonics, like switches, isolators, circulators, power dividers and multifunctional devices. (Source: Lattes Curriculum)
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Circulators are nonreciprocal devices normally used for the protection of signal sources against parasitic reflections that arise from unmatched loads in a communication system. The operating principle of circulators is related to the breaking of the time reversal symmetry due to the application of a DC magnetic field to a magneto-optical material that constitutes such devices. This exter…
Circulators play a key role in the protection of signal sources, like LASERs and amplifiers, against the harmful effects related to parasitic reflections created by unmatched loads in communication systems. Most circulator designs rely on the utilization of magneto-optical (MO) materials, since such materials can provide the time reversal symmetry breaking required for the operation of ci…
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