https://doi.org/10.1007/s10053-000-9073-9
Spatial and temporal properties of parametric fluorescence around degeneracy in a type I LBO crystal
Laboratoire d'Optique P.M. Duffieux,
Centre National de la Recherche Scientifique (Unité Mixte de Recherche 6603) ,
Université de Franche-Comté,
25030 Besançon Cedex, France
Received:
18
February
1999
Revised:
9
June
1999
Published online: 15 January 2000
We present a theoretical and experimental study of the spatio-temporal properties of the spontaneous parametric emission generated in a type I LBO crystal around degeneracy. The number of quasi-phase-matched modes is shown to be equal to the number of spatio-temporal degrees of freedom of the image that can be parametrically amplified. From this number, we demonstrate the possibility of predicting the total number of photons generated by parametric fluorescence. Correlation is observed between spatial intensity fluctuations corresponding to pairs of signal-idler modes.
PACS: 42.65.Yj – Optical parametric oscillators and amplifiers / 42.50.Lc – Quantum fluctuations, quantum noise and quantum jumps
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
