Absorption and emission cross sections for the 4I9/2 ↔ 4F3/2 transition in Nd:SrGdGa3O, have been measured as a function of temperature. A fluorescence branching ratio of 0.42 for this transition was calculated from a Judd–Ofelt analysis. Diode-pumped lasing was demonstrated at 0.911 μm at reduced temperature and 1.06 μm at room temperature. An optical slope efficiency of 9% was achieved at 1.06 μm with diode side pumping.
© 1991 Optical Society of America
Original Manuscript: October 9, 1990
Revised Manuscript: February 28, 1991
Published: August 1, 1991
Frank Hanson, Horacio R. Verdun, Milan Kokta, and David Dick, "Optical properties and lasing of Nd:SrGdGa3O7," J. Opt. Soc. Am. B 8, 1668-1673 (1991)