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Optics Communications

Lasing without inversion in the V-type three-level system under the two-photon resonance condition

J. Mompart, R. Corbalán, Ramon A. Vilaseca

Published Feb 1, 1998• 23 citations
Publisher
DOI
10.1016/s0030-4018(97)00490-2

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We study propagation effects on lasing without population inversion in a Doppler-broadened V -type three-level system. In particular, we focus our analysis on frequency up-conversion lasing without inversion in atomic rubidium. In an atomic beam configuration, we show that it is possible to increase notably the probe gain per single pass through the active medium by detuning driving and probe fields out of one-photon resonance but maintaining the two-photon resonance condition. In a vapour cell configuration, we show that due to propagation effects the probe gain per single pass depends strongly on the driving field intensity at the entrance of the active medium. In fact, for appropriate parameter values, it is possible to reach values of the probe gain per single pass of around 40%. For this last case, we have considered the feedback of a ring laser cavity.