Demonstration of a petawatt-scale optical parametric chirped pulse amplifier based on yttrium calcium oxyborate

IF 5.2 1区物理与天体物理 Q1 OPTICS High Power Laser Science and Engineering Pub Date : 2023-01-23 DOI:10.1017/hpl.2023.7

Meizhi Sun, Jun Kang, Xiao Liang, Haidong Zhu, Qingwei Yang, Qi Gao, Ailin Guo, P. Zhu, Panzheng Zhang, Linjun Li, Lijuan Qiu, Zhantao Lu, Sheng Wang, X. Tu, Xinglong Xie, Jianqiang Zhu

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Abstract

Abstract As optical parametric chirped pulse amplification has been widely adopted for the generation of extreme intensity laser sources, nonlinear crystals of large aperture are demanded for high-energy amplifiers. Yttrium calcium oxyborate (YCa4O(BO3)3, YCOB) is capable of being grown with apertures exceeding 100 mm, which makes it possible for application in systems of petawatt scale. In this paper, we experimentally demonstrated for the first time to our knowledge, an ultra-broadband non-collinear optical parametric amplifier with YCOB for petawatt-scale compressed pulse generation at 800 nm. Based on the SG-II 5 PW facility, amplified signal energy of approximately 40 J was achieved and pump-to-signal conversion efficiency was up to 42.3%. A gain bandwidth of 87 nm was realized and supported a compressed pulse duration of 22.3 fs. The near-field and wavefront aberration represented excellent characteristics, which were comparable with those achieved in lithium triborate-based amplifiers. These results verified the great potential for YCOB utilization in the future.

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基于氧化硼酸钇钙的百瓦级光学参数啁啾脉冲放大器的演示

随着光学参数啁啾脉冲放大被广泛用于产生极强激光源，高能放大器需要大孔径非线性晶体。氧化硼酸钇钙(yca40 (BO3)3, YCOB)能够生长孔径超过100 mm，这使得它有可能应用于百瓦级体系。在本文中，我们首次实验证明了一种具有YCOB的超宽带非共线光参量放大器，用于800 nm的拍瓦级压缩脉冲产生。基于SG-II 5 PW设备，放大信号能量约为40 J，泵-信号转换效率高达42.3%。实现了87 nm的增益带宽，支持22.3 fs的压缩脉冲持续时间。近场和波前像差表现出优异的特性，可与基于三硼酸锂的放大器相媲美。这些结果验证了未来利用YCOB的巨大潜力。

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来源期刊

High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics

CiteScore

7.10

自引率

4.20%

发文量

401

审稿时长

21 weeks

期刊介绍： High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.