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Electro-optic photonic devices based on hybrid femtosecond laser written microstructures

Grant number: 19/13673-0
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): November 18, 2019
Effective date (End): May 17, 2020
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Cleber Renato Mendonça
Grantee:Franciele Renata Henrique
Supervisor abroad: Rachel Grange
Home Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Local de pesquisa : Swiss Federal Institute of Technology Zurich, Switzerland  
Associated to the scholarship:15/22392-3 - Optical nonlinearities in microstructures produced by two-photon polymerization, BP.DR

Abstract

Electro-optic (EO) modulators are key devices for photonic applications, since they can be used to encode signals in optics communications, for frequency generation, Q-switch in laser cavities, etc. With the advent of integrated photonics, EO devices based on waveguides have gained attention. Due to their ease of processing in the micro and nano scale, polymers are interesting platforms for the fabrication of EO devices based on waveguides. Furthermore, high nonlinear molecules can be easily incorporated to the polymeric matrix, allowing for the tailoring of the device EO properties. Among the different techniques used in the processing of polymeric platforms, femtosecond laser direct writing, or more specifically the two-photon polymerization technique, is particularly interesting, as tridimensional microstructures can be readily produced in a single step process. This way, in this project we propose the design, fabrication and characterization of EO devices based on fs-laser written polymeric microstructures doped with EO chromophores. We also propose the merging of these structures EO properties with the high quality guiding properties of fs-laser written waveguides in special glasses, thus producing hybrid polymer-glass devices.