Abstract

We have obtained ≈50 mW of time-averaged 1.064-μm output power from a diode-pumped, electro-optically Q-switched Nd:YAG microchip laser at pulse repetition rates between 5 and 500 kHz. The FWHM of the output pulses is proportional to the repetition rate, varying from <300 ps at low repetition rates to 13.3 ns at 500 kHz. The multikilowatt peak power obtained at low repetition rates allows for efficient nonlinear frequency conversion and is sufficient to ablate thin layers of metal.

© 1992 Optical Society of America

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