We have developed a Cr:LiSrGaF(6) laser that produces, in Q -switched operation, four times as much energy (12 microJ at 10 kHz) as a Cr:LiSrAlF(6) 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(6) than in Cr:LiSrAlF(6).
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Balembois et al. (1997) studied this question.
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