Observation of sub-poisson photon statistics in the cavity-QED microlaser

Wonshik Choi, Jai Hyung Lee, Kyungwon An, Christopher Fang-Yen, R. R. Dasari, M. S. Feld

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)


We have measured the second-order correlation function of the cavity-QED microlaser output and observed a transition from photon bunching to antibunching with increasing average number of intracavity atoms. The observed correlation times and the transition from super- to sub-Poisson photon statistics can be well described by gain-loss feedback or enhanced-reduced restoring action against fluctuations in photon number in the context of a quantum microlaser theory and a photon rate equation picture. However, the theory predicts a degree of antibunching several times larger than that observed, which may indicate the inadequacy of its treatment of atomic velocity distributions.

Original languageEnglish
Article number093603
JournalPhysical review letters
Issue number9
Publication statusPublished - 2006

ASJC Scopus subject areas

  • General Physics and Astronomy


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