Development two-stage frequency domain optical parametric amplification

IF 1.6 3区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

High Energy Density Physics Pub Date : 2021-03-01 DOI:10.1016/j.hedp.2020.100906

J. Ogino , L. Zhaoyang , S. Tokita , K. Tsubakimoto , N. Miyanaga , J. Kawanaka

引用次数: 0

Abstract

From experiments, we analyzed the spatiotemporal characteristics of a laser pulse in the Fourier plane in the 4-f arrangement. Based on these characteristics, we demonstrated two-stage frequency domain optical parametric amplification (FDOPA). The 275-fs signal seed pulse of the 1054-nm central wavelength was amplified in Type I β-BaB₂O₄ crystals pumped by a 180-ps pulse of 532-nm wavelength 532 nm. Using two-stage FDOPA at pump energy of 27 mJ (1.5 GW/cm²), a total net gain of 67 was obtained, yielding an output energy of 174 μJ while maintaining pulse width. We report the new concept of a two-stage FDOPA with beam magnification inside the 4-f arrangement that avoids damage to the output diffraction grating.

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研制两级频域光参量放大

通过实验，我们分析了激光脉冲在傅里叶平面上4-f排列的时空特性。基于这些特性，我们演示了两级频域光参量放大(FDOPA)。在I型β-BaB2O4晶体中，通过532 nm波长180 ps的532 nm脉冲泵浦，放大中心波长1054 nm的275 fs信号种子脉冲。采用泵浦能量为27 mJ (1.5 GW/cm2)的两级FDOPA，获得了总净增益67，在保持脉冲宽度的情况下输出能量为174 μJ。我们报道了一种新的两级FDOPA的概念，其光束放大在4-f排列内，避免了对输出衍射光栅的损坏。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Energy Density Physics PHYSICS, FLUIDS & PLASMAS-

CiteScore

4.20

自引率

6.20%

发文量

审稿时长

6-12 weeks

期刊介绍： High Energy Density Physics is an international journal covering original experimental and related theoretical work studying the physics of matter and radiation under extreme conditions. ''High energy density'' is understood to be an energy density exceeding about 1011 J/m3. The editors and the publisher are committed to provide this fast-growing community with a dedicated high quality channel to distribute their original findings. Papers suitable for publication in this journal cover topics in both the warm and hot dense matter regimes, such as laboratory studies relevant to non-LTE kinetics at extreme conditions, planetary interiors, astrophysical phenomena, inertial fusion and includes studies of, for example, material properties and both stable and unstable hydrodynamics. Developments in associated theoretical areas, for example the modelling of strongly coupled, partially degenerate and relativistic plasmas, are also covered.