基于硼酸铋的高效光学参数啁啾脉冲放大器，输出脉冲约为2.1 mJ, 38 fs，约为2150 nm

IF 5.2 1区物理与天体物理 Q1 OPTICS

High Power Laser Science and Engineering Pub Date : 2023-03-15 DOI:10.1017/hpl.2023.24

A. Petrulėnas, P. Mackonis, A. Rodin

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引用次数: 1

摘要

摘要提出了一种紧凑、经济的mj级飞秒激光系统，工作在约2.15 μm的中心波长。一种经济实惠的两级掺镱钇铝石榴石啁啾脉冲放大器(Yb:YAG)在1030 nm处提供超过10 mJ，约1.2 ps的脉冲，以泵浦基于硼酸铋晶体的三级光学参数啁啾脉冲放大器(OPCPA)，并驱动YAG晶体中的超连续介质种子。放大后的脉冲在1.95 ~ 2.4 μm波长范围内的能量达到2.25 mJ，在OPCPA最后阶段的泵-信号转换效率约为25%。这些脉冲在一对Suprasil 300玻璃棱镜中被压缩到38秒。

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High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

Abstract We present a compact and cost-effective mJ-level femtosecond laser system operating at a center wavelength of approximately 2.15 μm. An affordable two-stage ytterbium-doped yttrium aluminum garnet (Yb:YAG) chirped pulse amplifier provides more than 10 mJ, approximately 1.2 ps pulses at 1030 nm to pump a three-stage optical parametric chirped pulse amplifier (OPCPA) based on bismuth borate crystals and to drive the supercontinuum seed in the YAG crystal. The energy of the amplified pulses in the wavelength range of 1.95–2.4 μm reached 2.25 mJ with a pump-to-signal conversion efficiency of approximately 25% in the last OPCPA stage. These pulses were compressed to 38 fs in a pair of Suprasil 300 glass prisms.

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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.