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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 m J with 13 ns pulse duration is obtained from the system at the repetition rate of 20 Hz and the beam quality factors are M 2x = 3.1 and M 2y = 3.5. The beam pointing stabilities of the laser system are 3.05 μrad in the X-direction and 3.99 μrad in the Y-direction, respectively.
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. 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 m J with 13 ns pulse duration is obtained from the system at the repetition rate of 20 Hz and the beam quality factors are M 2x = 3.1 and M 2y = 3.5. The beam pointing stabilities of the laser system are 3.05 μrad in the X-direction and 3.99 μrad in the Y-direction, respectively.