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Long-pulse emissions characteristics of an oscillator which uses a thin-walled tube of Nd: glass as the lasing medium are described. Slope efficiency in the single-shot mode was 0.9%, with 70% of the energy being contained in a full divergence angle of 1.7 mrad. Single-shot characteristics were maintained at repetition rates up to 0.2 pps in close agreement with the calculated thermal time constant. Peak output of 4.1 times the single-shot value was obtained at 2–3 pps.
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Milam et al. (1973) studied this question.
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