We present a Ho:YLF Chirped-Pulse Amplification (CPA) laser for pumping a longwave infrared Optical Parametric Chirped Pulse Amplifier (OPCPA) at a 1 kHz repetition rate. By utilizing a Ti:Sapphire laser as a frontend, 5-{\mu}J seed pulses at 2051 nm laser pulse are generated in a Dual-Chirp Optical Parametric Amplifier (DC-OPA), which are amplified to 28 mJ pulses with a pulse duration of 6.8 ps. The scheme offers a potential driver for two-color (800 nm and 8 {\mu}m) high harmonic generation with an increased keV X-ray photon flux.

中文翻译：

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带有 Ti:Sapphire 前端的 Ho:YLF 放大器，用于泵浦中红外光参量放大器

我们提出了一种 Ho:YLF 啁啾脉冲放大 (CPA) 激光器，用于以 1 kHz 的重复率泵浦长波红外光学参量啁啾脉冲放大器 (OPCPA)。通过使用 Ti:Sapphire 激光器作为前端，在双啁啾光学参量放大器 (DC-OPA) 中产生 2051 nm 激光脉冲的 5-{\mu}J 种子脉冲，并用脉冲持续时间为 6.8 ps。该方案为具有增加的 keV X 射线光子通量的双色（800 nm 和 8 {\mu}m）高次谐波生成提供了潜在的驱动力。