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Dual Q-switched laser outputs from a single lasing medium using an intracavity MEMS micromirror array

Bauer, Ralf R. and Lubeigt, Walter W. and Uttamchandani, Deepak G. D.G. (2012) Dual Q-switched laser outputs from a single lasing medium using an intracavity MEMS micromirror array. Optics Letters, 37 (17). pp. 3567-3569. ISSN 0146-9592

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Abstract

An intracavity array of individually controlled microelectromechanical system scanning micromirrors was used to actively Q-switch a single side-pumped Nd:YAG gain medium. Two equal power independent laser outputs were simultaneously obtained by separate actuation of two adjacent micromirrors with a combined average output power of 125 mW. Pulse durations of 28 ns FWHM at 8.7 kHz repetition frequency and 34 ns FWHM at 7.9 kHz repetition frequency were observed for the two output beams with beam quality factors M2 of 1.2 and 1.1 and peak powers of 253 W and 232 W, respectively.