Characteristics of room-temperature 2.3-µm laser emission from tm3+in YAG and YAlO3

@article{Caird1975CharacteristicsOR,
  title={Characteristics of room-temperature 2.3-µm laser emission from tm3+in YAG and YAlO3},
  author={J J Caird and L. DeShazer and J. Nella},
  journal={IEEE Journal of Quantum Electronics},
  year={1975},
  volume={11},
  pages={874-881}
}
The relaxation of low-lying excited states of Tm<sup>3+</sup>ions doped in YAG, YAlO<inf>3</inf>, and Y<inf>2</inf>O<inf>3</inf>due to photon and phonon emission is studied theoretically. Stimulated emission cross sections (integrated over frequency), fluorescence lifetimes, and radiative quantum efficiencies are calculated and their implications for laser operation on the 2.3-μm<sup>3</sup>F<inf>4</inf>→<sup>3</sup>H<inf>5</inf>line of Tm<sup>3+</sup>are discussed. The calculations, based on a… CONTINUE READING