Abstract

An efficient compact $\mathrm{Yb}\text{:}{\mathrm{Y}}_3{\mathrm{Sc}}_{1.5}{\mathrm{Ga}}_{3.5}{\mathrm{O}}_{12}$ garnet crystal laser actively $Q$-switched with an acousto-optic modulator is demonstrated, producing stable pulses at repetition rates ranging from 1 to 30 kHz. With 10.8 W of pump power absorbed, an average output power of 3.1 W at 1025.7 nm is generated at pulse repetition rate of 1 kHz, with a slope efficiency of 46%. The resulting pulse energy, duration, and peak power are 3.1 mJ, 23.9 ns, and 130 kW, respectively.

© 2013 Optical Society of America

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