Open AccessLASING WITHOUT INVERSION: GAIN AND SATURATION
Author(s) -
Zhenfei Luo,
Zhizhan Xu,
LIN FU-CHENG
Publication year - 1994
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.43.219
Subject(s) - lasing threshold , saturation (graph theory) , inversion (geology) , coherence (philosophical gambling strategy) , density matrix , physics , computational physics , optics , quantum mechanics , laser , mathematics , paleontology , combinatorics , structural basin , quantum , biology
The solution for the equations of atomic density matrix is obtained, without resorting to any approximation, in the Ξ-type of three-level system with lower-level coherence. The conditions on pumping are analyzed in the strong-coherence case for lasing without inversion and the saturation term is derived.
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