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We present a simple technique to stabilize the period of the pulses emitted by passively Q-switched lasers. By slightly modulating the pump diode power, the repetition rate of a Nd3+:YAG laser passively Q switched by Cr4+:YAG is experimentally shown to reach a time stability of 10−6 over 106 pulses. Simulations using a rate-equation model are in close agreement with the experiments.
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Lai et al. (2001) studied this question.
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