Towards Integrated Optical Systems with Glass-based Additive Manufacturing by Laser Glass Deposition
Conference on Lasers in Manufacturing (LiM)
Laser Glass Deposition as an additive manufacturing method is a promising alternative to conventional, manufacturing processes for individualized opt. components. This process uses a CO2 laser as a heat source to melt fused silica filaments for additive manufacturing. By adapting the process strategy, opt. components can be produced, such as waveguides or beam shaping lenses. In this paper, on-chip production of additively manufactured waveguides and lenses is demonstrated, paving the way for sophisticated glass-based photonic integration. For this purpose, investigations on manuf. of components under variation of laser power, feed rate and line spacing are presented. The focus is to preserve opt. properties of waveguides and lenses and at the same time exploit design flexibility of the process. Printing of the lenses through fusion of several layers must result in a homogeneous topography. The functionality of the printed components is verified by optical and geometric characterization.