von Grafenstein Lorenz, Bock Martin, Ueberschaer Dennis, Griebner Uwe, Elsaesser Thomas
Opt Express. 2015 Dec 28;23(26):33142-9. doi: 10.1364/OE.23.033142.
A 2.051-µm laser source delivering picosecond pulses with energies as high as 34 mJ at a 1 kHz repetition rate is reported. The main amplifier system is based on Ho:YLF and consists of a regenerative amplifier (RA) and a single-pass booster amplifier running at room temperature. The continuous-wave pumped, high-gain RA produces pulse trains with up to 10-mJ energy when operating in a stable periodic doubling regime. The recorded complete RA bifurcation diagram agrees well with our numerical simulations. At the highest pulse energy after the booster amplifier the pulse-to-pulse fluctuations are as low as 0.9% rms. Pulse compression is performed up to the 10-mJ level resulting in a duration of 37 ps.
报道了一种2.051微米的激光源，其以1千赫兹的重复频率输出能量高达34毫焦的皮秒脉冲。主放大器系统基于钬：钇锂氟石，由一个再生放大器（RA）和一个在室温下运行的单通增强放大器组成。连续波泵浦的高增益RA在稳定的周期倍频模式下运行时，能产生能量高达10毫焦的脉冲序列。记录的完整RA分岔图与我们的数值模拟结果吻合良好。在增强放大器之后的最高脉冲能量下，脉冲间的波动低至均方根值0.9%。脉冲压缩在10毫焦的能量水平上进行，压缩后的脉冲持续时间为37皮秒。
