3D printed optical fibers

• Grant number: 25/15731-8
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: September 01, 2025
• End date: August 31, 2029
• Field of knowledge: Physical Sciences and Mathematics - Physics
• Principal Investigator: Cristiano Monteiro de Barros Cordeiro
• Grantee: Ivan Prearo
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 24/00998-6 - Center for Research and Innovation on Smart and Quantum Materials (CRISQuaM), AP.CEPID

Abstract

Optical fibers are generally produced from macroscopic preforms, which can vary greatly in length and diameter depending on the material and type of fiber. Preforms can be produced using various techniques, such as MCVD or extrusion. For microstructured polymer fibers, the preform is typically fabricated by direct drilling into a solid rod. In contrast, microstructured silica fibers have their preforms produced using the stacking-and-draw technique.In this project, we intend to investigate additive manufacturing using stereolithography techniques, where the initial material is a liquid resin. For silica, we plan to explore, in collaboration with international partners, the possibility of 3D printing the preform directly in glass. These techniques will significantly expand the possibilities for fibers, whose advanced characteristics depend on the geometrical patterns that form their core and cladding structure.