Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 23: Poster 2: Intersectional Session
Q 23.58: Poster
Dienstag, 15. März 2011, 18:00–21:00, P1
An optimized 1560nm polarization squeezer for quantum information protocols — •Christian Gabriel1,2, Joel F. Corney3, Christoph Marquardt1,2, and Gerd Leuchs1,2 — 1Max Planck Insitute for the Science of Light, Günther-Scharowsky-Strasse 1, D-91058 Erlangen, Germany — 2Institute for Optics, Information and Photonics, University Erlangen-Nuremberg, Staudtstrasse 7/B2, D-91058 Erlangen, Germany — 3ARC Centre of Excellence for Quantum-Atom Optics, School of Physical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
We investigate polarization squeezing with ultrashort pulses in optical fibers over a wide range of input energies, pulse lengths and fibre lengths. We present first experimental results of how an optimization of all these parameters gives rise to highly efficient polarization squeezing. The optimization is based on quantum mechanical simulations which reveal the influence of phase noise and Raman effects on the squeezing. This squeezing source can be used for quantum information protocols, ranging from squeezing and entanglement distillation to actual quantum communication with squeezed and entangled states over a realistic freespace link.