A simplified method for determination of the inducedemission cross section of neodymium doped glasses
Abstract
The inducedemission cross section is an important parameter for laser materials, since it defines the laser gain for a given population inversion. Judd (1962) and Ofelt (1962) have developed a theory, using which the radiative transition probabilities of the trivial rare earths can be calculated from the various electric dipole transitions. Based on this theory, simplified equations are derived and are applied to the calculation of the inducedemission cross sections for 12 neodymiumdoped silicate and phosphate glasses. The rms error of 6% compares favorably with the 5% error of Krupke's (1974) complete calculations.
 Publication:

IEEE Journal of Quantum Electronics
 Pub Date:
 September 1976
 DOI:
 10.1109/JQE.1976.1069208
 Bibcode:
 1976IJQE...12..551D
 Keywords:

 Doped Crystals;
 Laser Materials;
 Neodymium Lasers;
 Stimulated Emission;
 Population Inversion;
 Quantum Electrodynamics;
 Radiative Transfer;
 Transition Probabilities;
 Lasers and Masers