Two dimensional gradient-index beam shapers fabricated using ultrafast laser inscription
Abstract
In this paper gradient-index beam shapers are fabricated using the ultrafast laser inscription method. This method enables the fabrication of two-dimensional refractive index profiles inside silica glass, resulting in highly robust and compact beam shapers. The magnitude of this refractive index change can be tailored by adjusting the laser pulse energy, enabling arbitrary two-dimensional refractive index profiles to be manufactured. The process is then demonstrated by fabricating planar waveguides with quadratic index profiles that predictably resize Gaussian beams. Then a more complex two-dimensional refractive index profile is fabricated to transform an input Gaussian beam into a super-Gaussian (flat-top) beam.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 18, 2022
- Source ID
- 10.1364/oe.471596
Entities
People
- Ali Ghoreyshi
- Glen Douglass
- James Leger
- Michael J. Withford
- Mint Kunkel
- Simon Gross
Organizations
- Air Force Office of Scientific Research
- Australian Research Council
- Macquarie University
- University of Minnesota