Open AccessQUANTUM BEAT LASER:TWO-MODE SUB-POISSONIAN LIGHT
Author(s) -
Xiangming Hu,
Peng Jia
Publication year - 1998
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.47.1296
Subject(s) - physics , amplitude , beat (acoustics) , quantum , coherence (philosophical gambling strategy) , photon , relative phase , laser , quantum mechanics , photon statistics , quantum noise , phase (matter) , statistics , atomic physics , mathematics
It is shown that the Λ quantum beat system, into which a new atomic coherence is introduced, can produce bright two-mode sub-Poissonian light. The Mandel Q parameter is calculated using Scully-Lamb theory. On one hand, when quantum noises of the relative amplitude and relative phase drop to vaccum noise levels, the average mode exhibits sub-Poissonian photon distribution; when quantum noises of the average amplitude and average phase drop to vaccum noise levels, the relative mode exhibits sub-Poissonian photon statistics; the optimum Mandel Q parameter is -0.5. On the other hand, in the above two cases, each of the correlated spontaneous emission laser modes exhibits sub-Poissonian photon statistics with optimum Mandel Q parameter of -0.25.