Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 40: Poster: Quantum Optics and Photonics II
Q 40.66: Poster
Mittwoch, 8. März 2017, 17:00–19:00, P OG2
Three-dimensional Direct Laser Written Waveguides on a Chip — •Alexander Landowski1,2, Dominik Zepp1, Sebastian Wingerter1, Michael Renner1, Georg von Freymann1,3, and Artur Widera1,2 — 1Department of Physics and State Research Center OPTIMAS, University of Kaiserslautern, Erwin-Schroedinger-Str. 56, 67663 Kaiserslautern — 2Graduate School Materials Science in Mainz, Erwin-Schroedinger-Str. 56, 67663 Kaiserslautern — 3Fraunhofer-Institute for Physical Measurement Techniques IPM, Fraunhofer-Platz 1, 67663 Kaiserslautern
We engineer three-dimensional waveguides from a low fluorescent photoresist on a chip using a commercial system for direct laser writing. Using a silica substrate and air cladding, we are able to fabricate waveguide bends with small radii down to 40 µm and three-dimensional coupling structures, that enable addressing all input and output ports of our waveguide network through the substrate via one microscope objective simultaneously. Due to the low fluorescence, our waveguides in principle allow integration of single quantum emitters for quantum optical experiments on a chip.
Here we present detailed characterization of stadium waveguides with three-dimensional coupling structures. We discuss the limits of the single mode operation of the waveguides and show first beamsplitting devices. We analyze coupling, propagation and bend losses of our waveguides. Further, we characterize the fluorescence of the photoresist used.