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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster II

Q 55.58: Poster

Thursday, March 11, 2010, 16:00–19:00, Lichthof

Generation of strongly squeezed light in periodically poled KTP — •Sebastian Steinlechner, Jöran Bauchrowitz, Tobias Eberle, Henning Vahlbruch, and Roman Schnabel — Institut für Gravitationsphysik, Leibniz Universität Hannover und Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Callinstrasse 38, 30167 Hannover, Germany

Recent years saw a steady increase in the squeezing strength of continuous-wave light generated by parametric down-conversion. Losses have been reduced significantly by using monolithic nonlinear resonators made from magnesium-doped lithium niobate. However, high second-harmonic pump powers were needed to achieve strong squeezing in magnesium-doped lithium niobate, thus leading to thermal instabilities. Here we report on experimental results with a monolithic, periodically poled KTP resonator and present ultra-strong squeezing at 1064nm.