Efficient multi-folded Nd:YVO4 slab amplifier.
A high-efficiency multi-folded Nd:YVO(4) slab amplifier is reported. Optimizing the mode overlapping carefully, high extraction efficiency was achieved using the wedged multi-folded configuration with two planar folding mirrors. The amplifier's performance under different seed powers and different pulse repetition frequencies (PRF) is presented. The 52 W seed at the PRF of 152 kHz was amplified to 101.75 W with the pump power of 92 W, and the corresponding extraction efficiency is 54.3%. And no remarkable deterioration of the beam quality was observed.
Center for Photonics and Electronics, State Key Laboratory of Tribology, Dept. of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China.
Mali
M
Gong
Qi
Q
Wang
Lei
L
Huang
Dan
D
Lu
Qiang
Q
Liu
D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D007909:Lenses