Stimulated emission cross section of the 4 F 3/2 → 4 I 11/2 of Nd:GYSGG

The stimulated emission cross section of a 1.1-at.% doped Nd:Gd3xY3(1-x)Sc2Ga3(1+delta)O-12 (x = 0 - 1, delta = -0.2 - 0.2) (Nd:GYSGG) crystal at 1.06 mu m (F-4(3/2) -> I-4(11/2) transition) is measured at room temperature, using both the laser efficiency comparison method with an Nd:Y3Al5O12 (Nd:YAG) laser and the threshold formula method, with their results of 1.59 x 10(-19) and 1.50 x 10(-19) cm(2), respectively. The measured results accord well with each other and they are of great use in designing a Nd:GYSGG laser system. (C) 2012 by Astro, Ltd.