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Opt Lett. 2007 Oct 1;32(19):2774-6.

Stable pulse-compressed acousto-optic Q-switched fiber laser.

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  • 1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.


A novel acousto-optic switch operation by a simple laser-diode pumped acousto-optic, Q-switched, ytterbium-doped, double-clad fiber laser is reported. Stable compressed Q-switched sub-40 ns pulses with a beam quality factor (M(2)=2) are achieved at the repetition rate of 1-50 kHz. Q-switched pulses of ~20 microJ pulse energy and 35 ns pulse width are obtained at the repetition rate of 50 kHz. Finally, a reasonable explanation of the novel Q-switched operation is presented.

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