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A Cr3+:LiSrAlF6 laser in Q-switched operation at 10 kHz was intracavity frequency doubled by using a LiIO3 crystal. The 230 ns tunable blue pulses were obtained in the 395–435 nm range with up to 7 mW average power at 407 nm.
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Balembois et al. (1992) studied this question.
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