Variations in the transition probabilities and quantum efficiency of Nd3+ ions in ED-2 laser glass

Abstract
Radiative and nonradiative transition probabilities from the 4F3/2 state of Nd3+ in ED‐2 laser glass were measured for ions in different sites using laser‐induced fluorescence line‐narrowing techniques. Both radiative and multiphonon transition probabilities were found to be site dependent, with the relative radiative quantum efficiency varying by as much as 50%.