短脉冲、高重复率的二极管泵浦 Yb:CaF2 再生放大器。

Short-pulse and high-repetition-rate diode-pumped Yb:CaF2 regenerative amplifier.

机构信息

Laboratoire Charles Fabry de l'Institut d'Optique (LCFIO), UMR 8501 CNRS, Université Paris-Sud, RD 128 Campus Polytechnique, 91127 Palaiseau, France.

出版信息

Opt Lett. 2010 Jul 15;35(14):2415-7. doi: 10.1364/OL.35.002415.

DOI:10.1364/OL.35.002415

PMID:20634848

Abstract

We present a diode-pumped regenerative amplifier based on an Yb:CaF(2) crystal optimized to produce short pulses for various repetition rates ranging from 100 Hz to 10 kHz. The shortest pulse duration generated is 178 fs, and the corresponding energy is 1.4 mJ before compression (620 microJ after), at a repetition rate of 500 Hz for 16 W of pump power. The bandwidth is 10 nm centered at 1040 nm. Higher repetition rate regimes have also been explored, allowing an optical-to-optical efficiency up to 10% at a high repetition rate.

摘要

我们提出了一种基于 Yb:CaF2 晶体的二极管泵浦再生放大器，该放大器经过优化可在 100 Hz 至 10 kHz 的各种重复率下产生短脉冲。在 16 W 泵浦功率下，重复率为 500 Hz 时，最短脉冲持续时间为 178 fs，对应的能量为 1.4 mJ（压缩后为 620 μJ）。带宽为 1040nm 处的 10nm，在高重复率下，也探索了更高的重复率范围，允许在高重复率下达到 10%的光光效率。