Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 53: Poster: Quantum Optics and Photonics III
Q 53.64: Poster
Donnerstag, 9. März 2017, 17:00–19:00, P OG2
Recent progress in generating squeezed vacuum states in a nonlinear crystalline whispering gallery mode resonator — •Alexander Otterpohl1,2, Gerhard Schunk1,2, Ulrich Vogl1,2, Florian Sedlmeir1,2, Golnoush Shafiee1,2, Dmitry Strekalov1,2, Tobias Gehring3, Harald G. L. Schwefel4, Ulrik L. Andersen3, Gerd Leuchs1,2, and Christoph Marquardt1,2 — 1Max Planck Institute for the Science of Light, Staudtstr. 2, 91058 Erlangen, Germany — 2Institute of Optics, Information and Photonics, University of Erlangen-Nuremberg, Staudtstr. 7 B2, 91058 Erlangen, Germany — 3Department of Physics, Technical University of Denmark, Fysikvej, 2800 Kgs. Lyngby, Denmark — 4The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Physics, University of Otago, 730 Cumberland Street, 9016 Dunedin, New Zealand
Macroscopic crystalline whispering gallery mode resonators (WGMR) made out of LiNbO3 are a versatile source of non-classical light [1]. Here, we report on recent progress in generating squeezed vacuum states in WGMRs via parametric down-conversion near the degenerate point. For that, we performed a detailed mode-analysis and improved the long-term stability of the setup to allow for stable operation above and below threshold. We also discuss the prospects of producing frequency combs and realizing more elaborate proposals such as enhanced optomechanical position detection via intra-cavity squeezing [2].
[1] J. U. Fürst et al., Phys. Rev. Lett. 106, 113901(2011).
[2] V. Peano et al., Phys. Rev. Lett. 115, 243603(2015).