The main multi-pass amplifier with double-side pumped Ti:sapphire
双向抽运钛宝石的高效率多通脉冲主放大研究

Based on the theory of multi_pass amplification, we analyse numerically the character of gain for amplified pulse and design a 6_pass amplifier. With two 1 3J, 532nm Nd:YAG lasers as the source, amplified pulse energy as high as 1J was obtained, which corresponds to a 38% conversion efficiency.