Abstract: High quality Cr:iSrAlF6 (abbreviated as Cr:iSAF) crystals were grown by Bridgman method and their laser performance are reported in this paper. The starting materials were treated using a solid fluorinating agent to remove oxides and water. The size of Cr:LiSrAlF6 crystals, which were grown in a small temperature gradient at a slow growth rate, is up to 20mm in diameter and 130mm in length. 1-15mol; homogeneous Cr3+ doping concentration can be realized. From the XRD spectrum of Cr:iSAF, the lattice parameters are figured out to be a=0.502nm and c=0.967nm. The absorption spectrum of Cr:iSAF was measured and the causes bringing about the absorptions were discussed. Flashlamp-pumped Cr:iSAF laser action was realized. The slope efficiency of flashlamp-pumping is up to 5.85;.

Key words: High quality Cr:iSrAlF6 (abbreviated as Cr:iSAF) crystals were grown by Bridgman method and their laser performance are reported in this paper. The starting materials were treated using a solid fluorinating agent to remove oxides and water. The size of Cr:LiSrAlF6 crystals, which were grown in a small temperature gradient at a slow growth rate, is up to 20mm in diameter and 130mm in length. 1-15mol; homogeneous Cr3+ doping concentration can be realized. From the XRD spectrum of Cr:iSAF, the lattice parameters are figured out to be a=0.502nm and c=0.967nm. The absorption spectrum of Cr:iSAF was measured and the causes bringing about the absorptions were discussed. Flashlamp-pumped Cr:iSAF laser action was realized. The slope efficiency of flashlamp-pumping is up to 5.85;.