Hannover 2010 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 21: Poster I
Q 21.84: Poster
Tuesday, March 9, 2010, 16:00–19:00, Lichthof
Single-sweep production of complex 3D-waveguide devices in fused-silica produced by adaptive femtosecond laser writing — •Matthias Pospiech1, Benjamin Väckenstedt1, Moritz Emons1, Guido Palmer1, and Uwe Morgner1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover, Deutschland — 2Laser Zentrum Hannover e.V.
We report on a novel method to create multiple waveguides simultaneously in different depths in fused silica. A combination of adaptive beam shaping with femtosecond laser writing is used to simultaneously write two waveguides with changing separation and depth. The method is based on a programmable phase modulator with dynamically varying phase-pattern during the writing process. It can be employed to demonstrate various photonic devices such as couplers, splitters and interferometers. We give an introduction into the method and demonstrate the latest results.