Opt Lett. 2015 Aug 1;40(15):3520-3. doi: 10.1364/OL.40.003520.
We report on a compact all-polarization-maintaining 2.05-μm chirped pulse fiber amplifier system emitting pulses at up to 1-MW peak power level at 371-fs pulse duration. The seed pulse repetition rate provided by an inhouse-built oscillator is reduced to around 1 MHz using a pulse picker. In combination with a two stage fiber amplifier, output pulse energies up to 570 nJ are obtained without the need of a high-power large-mode area amplifier. Both temporal stretching and compression of the chirped pulse amplifier design are achieved using a single chirped volume Bragg grating.
我们报告了一个紧凑的全偏振保持 2.05μm 啁啾脉冲光纤放大器系统，该系统在 371fs 的脉冲持续时间内可产生高达 1MW 峰值功率水平的脉冲。种子脉冲重复率通过一个内部构建的振荡器提供，并使用脉冲选择器将其降低到约 1MHz。结合两级光纤放大器，无需使用高功率大模场面积放大器，即可获得高达 570nJ 的输出脉冲能量。啁啾脉冲放大器设计的时间拉伸和压缩都是通过单个啁啾体布拉格光栅实现的。
