|Title||Lasing without inversion in three-level systems without external coherent driving|
|Publication Type||Journal Article|
|Year of Publication||2000|
|Authors||Ahufinger, V, Mompart, J, Corbalán, R|
|Journal||Phys. Rev. A|
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.