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Nonlinearities in Silicon-based Waveguides

Grant number: 15/04113-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): September 01, 2015
Effective date (End): May 02, 2017
Field of knowledge:Engineering - Electrical Engineering - Telecommunications
Principal researcher:Hugo Luis Fragnito
Grantee:Ivan Aritz Aldaya Garde
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


Silicon photonics has emerged as a promising platform for optical communication devices and optical signal processing applications. Itscompatibility with CMOS (Complimentary Metal Oxide Semiconductor)fabrication process allows the implementation of micro-structured siliconwaveguides, making it potentially cost-efficient for future optical integratedsystems. One challenge associated with Silicon Photonics is the lack of a laser source on silicon due to its indirect bandgap. However, silicon presents a 3rd ordernonlinear susceptibility, Chi(3), two orders of magnitude higher than that in silica.This high Chi(3) value can be exploited for the design of compact optical devices, such as parametric amplifier or wavelength converters and supercontinuum sources. In this project, our goal is to design, fabricate and test silicon-based, efficient and broadband devices for Optical Parametric Amplification and Wavelength Conversion. We intend to develop a detailed model for nonlinear propagation taking into account loss mechanisms such as two-photon absorption (and induced free-carrier absorption) and plasma effects. We also intend to explore structures that enhance phase-matching condition while being robust to manufacturing variability. Fabrication of these devices will be done at Unicamp as well asexternally. We will setup all characterization methods in our lab.

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Scientific publications (8)
(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)
LAMILLA, ERICK; FARIA, MAICON S.; ALDAYA, IVAN; JARSCHEL, PAULO F.; PITA, JULIAN L.; DAINESE, PAULO. Characterization of surface-states in a hollow core photonic crystal fiber. Optics Express, v. 26, n. 25, p. 32554-32564, DEC 10 2018. Web of Science Citations: 0.
GIL-MOLINA, ANDRES; ALDAYA, IVAN; PITA, JULIAN L.; GABRIELLI, LUCAS H.; FRAGNITO, HUGO L.; DAINESE, PAULO. Optical free-carrier generation in silicon nano-waveguides at 1550nm. Applied Physics Letters, v. 112, n. 25 JUN 18 2018. Web of Science Citations: 2.
ALDAYA, IVAN; DEL-VALLE-SOTO, CAROLINA; CAMPUZANO, GABRIEL; GIACOUMIDIS, ELIAS; GONZALEZ, RAFAEL; CASTANON, GERARDO. Photonic millimeter-wave bridge for multi-Gbps passive optical networks. PHYSICAL COMMUNICATION, v. 28, p. 138-146, JUN 2018. Web of Science Citations: 2.
PITA, JULIAN L.; ALDAYA, IVAN; DAINESE, PAULO; HERNANDEZ-FIGUEROA, HUGO E.; GABRIELLI, LUCAS H. Design of a compact CMOS-compatible photonic antenna by topological optimization. Optics Express, v. 26, n. 3, p. 2435-2442, FEB 5 2018. Web of Science Citations: 1.
PITA, JULIAN L.; ALDAYA, IVAN; SANTANA, OCTAVIO J. S.; DE ARAUJO, LUIS E. E.; DAINESE, PAULO; GABRIELLI, LUCAS H. Side-lobe level reduction in bio-inspired optical phased-array antennas. Optics Express, v. 25, n. 24, p. 30105-30114, NOV 27 2017. Web of Science Citations: 6.
ALDAYA, I.; GIL-MOLINA, A.; PITA, J. L.; GABRIELLI, L. H.; FRAGNITO, H. L.; DAINESE, P. Nonlinear carrier dynamics in silicon nano-waveguides. OPTICA, v. 4, n. 10, p. 1219-1227, OCT 20 2017. Web of Science Citations: 12.
ALDAYA, IVAN; CAMPUZANO, GABRIEL; DEL-VALLE-SOTO, CAROLINA; ARAGON-ZAVALA, ALEJANDRO; CASTANON, GERARDO. Impact of the mobile terminal scheme on millimeter-wave radio over fiber systems based on photonic heterodyning techniques. OPTICAL AND QUANTUM ELECTRONICS, v. 49, n. 6 JUN 2017. Web of Science Citations: 1.
GIACOUMIDIS, ELIAS; MHATLI, SOFIEN; NGUYEN, TU; LE, SON T.; ALDAYA, IVAN; MCCARTHY, MARY E.; ELLIS, ANDREW D.; EGGLETON, BENJAMIN J. Comparison of DSP-based nonlinear equalizers for intra-channel nonlinearity compensation in coherent optical OFDM. OPTICS LETTERS, v. 41, n. 11, p. 2509-2512, JUN 1 2016. Web of Science Citations: 14.

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