We have developed a Cr:LiSrGaF<sub>6</sub> laser that produces, in Q -switched operation, four times as much energy (12 µJ at 10 kHz) as a Cr:LiSrAlF<sub>6</sub> laser under the same conditions of pumping (four red diodes emitting 400 mW). By using a theoretical model for small-signal gain calculations, we show that these better performances are mainly attributable to the fact that thermal quenching of fluorescence is lower in Cr:LiSrGaF<sub>6</sub> than in Cr:LiSrAlF<sub>6</sub>.
© 1997 Optical Society of America
Franois Balembois, Frédéric Druon, Franck Falcoz, Patrick Georges, and Alain Brun, "Performances of Cr:LiSrAlF6 and Cr:LiSrGaF6 for continuous-wave diode-pumped Q-switched operation," Opt. Lett. 22, 387-389 (1997)