Pulsed output was obtained from a cw diode-pumped Nd:YAG laser at 1.06 μm without the use of intracavity elements. This was achieved by tuning a stable amplitude modulation owing to polarization beating onto the natural relaxation-oscillation frequency of the laser cavity. Stable pulses were obtained at approximately 100 kHz with pulse widths of 500 ns. The pulse-repetition frequency changed with the relaxation-oscillation frequency of the resonator.
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Dekker et al. (1998) studied this question.
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