离轴高功率双程放大系统中小信号增益系数与泵浦能密度关系研究

Research for the relation between small signal gain coef ficient and pump-energy density of high-power off-axis two-pass amplificati on

描述了在多程放大装置上首先实现了高功率、大口径、方光束的双程离轴放大。对由 8片N31 玻璃片组成的放大器的增益特性做了测试。在充电电压为 2 2 k V、泵浦能密度为 1 0 .2 4 J/ cm3时 ,小信号增益系数为 4 .0 8% cm- 1 。

The purpose of this experiment is to describe that high-power large-aperture, square beam off-axis two-pass am plifier in multi-pass laser amplifier facility have been realized, and the gain coefficient of the laser amplifier have been tested. Under the condition of cha rge voltage 22kV and pump-energy density 10.24J/cm3, obtain small signal gain coefficient 4.08%cm 1.