Photonics Institute, Vienna University of Technology, Gusshausstrasse 27-387, A-1040 Vienna, Austria.
Opt Lett. 2009 Aug 15;34(16):2498-500. doi: 10.1364/ol.34.002498.
We demonstrate a four-stage optical parametric chirped-pulse amplification system that delivers carrier-envelope phase-stable approximately 1.5 microm pulses with energies up to 12.5 mJ before recompression. The system is based on a fusion of femtosecond diode-pumped solid-state Yb technology and a picosecond 100 mJ Nd:YAG pump laser. Pulses with 62 nm bandwidth are recompressed to a 74.4 fs duration close to the transform limit. To show the way toward a terawatt-peak-power single-cycle IR source, we demonstrate self-compression of 2.2 mJ pulses down to 19.8 fs duration in a single filament in argon with a 1.5 mJ output energy and 66% energy throughput.
我们展示了一个四阶段的光参量啁啾脉冲放大系统，该系统在重新压缩之前可提供能量高达 12.5mJ 的载波包络相位稳定的近似 1.5μm 脉冲。该系统基于飞秒二极管泵浦固态 Yb 技术和皮秒 100mJNd:YAG 泵浦激光的融合。带宽为 62nm 的脉冲被重新压缩到接近变换极限的 74.4fs 持续时间。为了展示通往太瓦峰值功率单周期 IR 源的途径，我们在氩气中使用单丝展示了 2.2mJ 脉冲的自压缩，其持续时间为 19.8fs，输出能量为 1.5mJ，能量透过率为 66%。
