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Production of devices for integrated quantum photonics and sensors using femtosecond laser microfabrication

Grant number: 16/21322-4
Support type:Scholarships abroad - Research
Effective date (Start): August 01, 2017
Effective date (End): July 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Paulo Henrique Dias Ferreira
Grantee:Paulo Henrique Dias Ferreira
Host: Roberto Osellame
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Local de pesquisa : Politecnico di Milano, Italy  

Abstract

Nonlinear optical phenomena have been receiving a lot of attention due to its potential to generate new technologies. Among the fields of application, there may be mentioned the production of three-dimensional waveguide and vitreous materials through femtosecond pulses for the manufacture of optical devices, where can be highlighted the photonic circuits for quantum optics and sensors. The first have obtained great prominence due to the possibility of implementing in glass in which both facilitates and lowers the production costs. Moreover, among the physical systems that are being used to develop quantum technologies, photons are particularly attractive due to its low noise, high speed transmission and ease of handling. On the other hand, the creation of sensors on a robust base will allow applications in environmental analysis, process monitoring/control, security/surveillance, as well as in the clinical/biomedical.Imbued with this idea, this project aims the microfabrication with femtosecond pulses in commercial glass (Eagle XG and Gorilla), in order to produce of different architectures for application in devices. Thus, this project was divided into two stages. At first, we will study the optimum conditions for microfabrication and produce waveguides in different configurations in glasses (interferometers, beam splitters, couplers, etc.). Further, the photonic devices produced will be characterized part in Italy and part in Brazil. Finally, it is important to emphasize that this is one of the first steps for the production of integrated photonic devices.