Parametric downconversion vs optical parametric amplification: a comparison of their quantum statistics
Elna M. Nagasako, Sean J. Bentley, Wimmer-Schweingruber Robert, Girish Saran Agarwal · Journal of Modern Optics · 2002
The extent to which the intense light generated by an unseeded, high-gain optical parametric amplifier retains the desired quantum statistical properties of the individual photon pairs generated by spontaneous parametric downconversion is analysed. It is shown that certain but not all of these properties are retained, with important implications for applications of quantum optics.