Abstract

We present a near diffraction-limited 1 064-nm Nd:YAG rod laser with output power of 82.3W(<i>M</i>² ≈ 1.38). The power fluctuation over two hours is better than ± 1.1%. Pulsed 1 064-nm laser with an average power of 66.6 W and pulse width of 46 ns are achieved when the laser is <i>Q</i>-switched at a repetition rate of 10 kHz. The short pulse duration stems from the short cavity as well as the high-gain laser modules. Using intracavity-frequency-doubling, a 35.0-W near diffraction-limited 532-nm green laser (<i>M</i>² ≈ 1.32) is achieved with a pulse width of 43 ns.

© 2012 Chinese Optics Letters

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