Abstract
We develop a compact and high-energy Nd:YAG slab laser system consisting of
an oscillator and an amplifier for space applications. The oscillator is a
diode-side-pumped electro-optically Q-switched slab laser with a cross-Porro
resonator. The KD*P Pockels cell with a low driving voltage of 950 V is used to
polarization output coupling. The amplifier is a Nd:YAG zigzag slab pumped at
bounces. The maximum output pulse energy of 341 mJ with 13 ns pulse duration is
obtained from the system at the repetition rate of 20 Hz and the beam quality
factors are M 2 x = 3.1 and M 2 y = 3.5. The beam pointing stabilities of the laser
system are 3.05 ?rad in the X-direction and 3.99 ?rad in the Y-direction,
respectively.
© 2014 Chinese Optics Letters
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