组合式双程同轴放大器中单元放大器的增益控制

Control of Unit Amplifier Gain in Built-up Double-Pass Coaxial Amplifiers

针对“神光Ⅱ”激光系统主放大器组合结构的特点 ,提出了一种利用角变反镜 (AVM)实现单元放大器的增益控制的新方案 。

In accordance with the built-up structure of the main amplifier in 'SHENGGUANG Ⅱ' laser system, a new scheme of using angular variable mirror (AVM) to control unit amplifier gain for power balance is proposed. The gain change of double-pass amplifier caused by the AVM attenuation is analysed.