Abstract

Lasing without inversion (LWI) in specific models of closed three-level systems is analyzed in terms of nonlinear dynamics. From a linear stability analysis of the trivial nonlasing solution of the homogeneously broadened systems with on-resonance driving and laser fields, we find that, near lasing threshold, resonant closed Λ and V schemes yield continuous-wave LWI while resonant cascade schemes can give rise to self-pulsing LWI. The origin of this different behavior is discussed. For parameters of a real cascade system in atomic 138Ba we check numerically that the self-pulsing solution is stable in a broad range of nonzero detunings. It is shown that the self-pulsing emission can still be observed when the typical residual Doppler broadening of an atomic beam is taken into account.

Authors
J. Mompart, R. Corbalán, i C. Peters
Citation Key
PhysRevA.57.2163
COinS Data

Date Published
2015-04-14 02:57
DOI
10.1103/PhysRevA.57.2163
Pagination
2163–2168
Publisher
American Physical Society
Journal
Phys. Rev. A
URL
http://link.aps.org/doi/10.1103/PhysRevA.57.2163
Volume
57
Year of Publication
1998