Ultrafast laser fabrication of bragg waveguides in GLS chalcogenide glass

Abstract

We present work on the fabrication of Bragg waveguides in gallium-lanthanum-sulfide chalcogenide glass using an ultrafast laser. Waveguides were written with a single pass while modulating the writing beam. The spatial and temporal profile of the writing beam was ontrolled during waveguide fabrication in order to control the shape and size of the waveguide cross-section. © Owned by the authors, published by EDP Sciences, 2013.