https://doi.org/10.1140/epjd/e2003-00263-9
Four modes of optical parametric operation for squeezed state generation
1
Department of Physics, Faculty of Science,
The Australian National University, ACT 0200, Australia
2
Department of Physics, Technical University of
Denmark, 2800 Kgs. Lyngby, Denmark
3
Institute of Opto-Electronics, Shanxi University, Taiyuan, Shanxi 030006, P.R. China
Corresponding author: a andersen@kerr.physik.uni-erlangen.de
Received:
6
August
2002
Revised:
10
March
2003
Published online:
26
August
2003
We report a versatile instrument, based on a monolithic optical parametric amplifier, which reliably generates four different types of squeezed light. We obtained vacuum squeezing, low power amplitude squeezing, phase squeezing and bright amplitude squeezing. We show a complete analysis of this light, including a full quantum state tomography. In addition we demonstrate the direct detection of the squeezed state statistics without the aid of a spectrum analyser. This technique makes the nonclassical properties directly visible and allows complete measurement of the statistical moments of the squeezed quadrature.
PACS: 42.50.Dv – Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
