Abstract
High-frequency, high-energy sequential-pulse lasers play an important role in high-speed photography. However, pump rates cannot increase infinitely with the increase in frequency. Studying the stability of a pulse train at a fixed pump rate and high frequency is of great importance. This paper presents a novel Q-switching method for improving output stability at high frequencies and a fixed pump rate. The mechanism of the method was analyzed and demonstrated. Experiments were carried out with a newly developed high-voltage control system. Experimental results were in good agreement with the results of theoretical analysis, which showed that the output pulse trains could be stabilized by using the proposed method. This work provides an important reference for high-frequency, high-energy pulse train control.
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