Lasing without inversion in three-level systems without external coherent driving

V. Ahufinger, J. Mompart, R. Corbalán

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15 Citations (Scopus)


We have studied an incoherently pumped laser operating with a Doppler-broadened three-level system placed in a doubly resonant cavity. This system generates two laser fields, one of them without population inversion. Both ladder and V-type three-level schemes are considered with a ratio R = ωα/ωβ of inversionless laser frequency ωα to ordinary laser frequency ωβ of R = 0.67 and R = 1.88, respectively. Dual-wavelength lasing extends up to Doppler-broadening values for optical transitions of atoms in a vapor cell. Some considerations for the practical realization of this dual-wavelength laser are discussed.
Original languageEnglish
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number5
Publication statusPublished - 1 Jan 2000


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