Düsseldorf 2007 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 10: Nichtlineare optische Effekte und Lichtquellen II
Q 10.6: Talk
Monday, March 19, 2007, 15:15–15:30, 5J
Second-Order Nonlinear Effects in Lithium Niobate Directional Couplers — •Anna Heidt1, Roland Schiek2, Thomas Pertsch1, Arkadi Chipouline1, Wolfgang Sohler3, and Andreas Tünnermann4 — 1Institute of Applied Physics, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743, Jena, Germany — 2University of Applied Sciences Regensburg, Prüfeninger Str. 58, 93049 Regensburg, Germany — 3Applied Physics, Universität Paderborn, 33095 Paderborn, Germany — 4Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Strasse 7, 07745 Jena, Germany
All-optical switching in coupled nonlinear optical waveguides [1, 2] has been investigated experimentally and theoretically. The experiments have been performed in a Ti-diffused Periodically Poled Lithium Niobate (PPLN) Z-cut crystal waveguides exhibiting high second order nonlinearity. All-optical switching up to 10 MHz for the C telecom band has been experimentally tested. Numerical code has been developed in order to evaluate the switching performance theoretically. A feasibility of the extrapolation on higher frequencies up to 10 GHz has been checked theoretically (experiments are ongoing). [1] R.Schiek, Y.Baek, G. Krijnen, G.I. Stegeman, I. Baumann, and W. Sohler, "All-optical switching in lithium niobate directional couplers with cascaded nonlinearity", Optics Lett., 21, July 1 (1996). [2] R. Schiek, R. Iwanow, G.I. Stegeman, T. Pertsch, F. Lederer Y. Hong Min, and W. Sohler, "Low-power, multiport, ultrafast, parametric switching in cascaded waveguide couplers", Appl. Phys. Lett., 87, 011109 (2005).