Hannover 2013 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.42: Poster
Wednesday, March 20, 2013, 16:00–18:30, Empore Lichthof
Correlation measurements on single ultrashort light pulses — •Alexander Jänicke1,2, Michael Förtsch1,2, Jan Korger1,2, Christoffer Wittmann1,2, Christoph Marquardt1,2, and Gerd Leuchs1,2 — 1Max-Planck Institute for the Science of Light, Erlangen — 2Institute for Optics, Information and Photonics, University Erlangen-Nuremberg
The generation of non-classical states of light in higher order spatial modes can potentially increase the information capacity in quantum communication. Therefore we study the quantum properties of single ultrashort pulses using a highly efficient CCD camera.
We demonstrate that the repetition rate of a Ti:Sapphire laser can artificially be reduced to 1 Hz by a two-stage pulse picker design. This allows sampling of individual pulses on the CCD camera. We have realized a balanced detection scheme and studied intensity variances. Early experimental results indicate a shot noise limited measurement system.
This provides the basis for further studies of the spectral and spatial quantum properties of single ultrashort pulses. In particular, we want to measure non-classical correlations induced by the Kerr nonlinearity of a photonic crystal fiber. We will report on the latest results.