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Optical distortions of Nd(+3) doped glass induced by repetitive optical pumping have been studied by means of interferometric measurements. The over-all distortion of laser rod reaches an upper limit much larger than the one observed in single-shot operation. Laser output energy measurements are also reported as a function of the number of shots.
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Benedetti-Michelangeli et al. (1969) studied this question.
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