The construction of a single-photon source by use of gated parametric fluorescence is reported with the measurement results of the photon number distribution. A beamlike twin-photon method is used in order to achieve high-collection efficiency. The estimated probability <i>P</i>(1) to find a single photon in a collimated output pulse is 26.5% at a repetition rate of 10 kHz when the effective quantum efficiency of 27.4% in the detection setup is compensated.
© 2004 Optical Society of America
(030.5260) Coherence and statistical optics : Photon counting
(230.6080) Optical devices : Sources
(270.0270) Quantum optics : Quantum optics
(270.5290) Quantum optics : Photon statistics
(270.6570) Quantum optics : Squeezed states
Shigeki Takeuchi, Ryo Okamoto, and Keiji Sasaki, "High-Yield Single-Photon Source Using Gated Spontaneous Parametric Downconversion," Appl. Opt. 43, 5708-5711 (2004)