Volume: 8 Issue 3
3 Article(s)

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Research Articles
Decoupling of the position and angular errors in laser pointing with a neural network method
Lei Xia, Yuanzhang Hu, Wenyu Chen, and Xiaoguang Li
High Power Laser Science and Engineering
  • Publication Date: Sep. 10, 2020
  • Vol.8 Issue, 3 03000e28 (2020)
Ultra-broadband near-infrared NOPAs based on the nonlinear crystals BiBO and YCOB | On the Cover
Mario Galletti, Hugo Pires, Victor Hariton, Joana Alves, Pedro Oliveira, Marco Galimberti, and Gonçalo Figueira
High Power Laser Science and Engineering
  • Publication Date: Sep. 22, 2020
  • Vol.8 Issue, 3 03000e29 (2020)
Spatiotemporal characterization of laser pulse amplification in double-pass active mirror geometry
Tinghao Liu, Qiang Liu, Zhan Sui, Mali Gong, and Xing Fu
We present a spatiotemporal model of pulse amplification in the double-pass active mirror (AM) geometry. Three types of overlap condition are studied, and the spatiotemporal scaling under the four-pulse overlapping (4PO) condition is fully characterized for the first time, by mapping the temporal and spatial segments of beam to the instantaneous gain windows. Furthermore, the influence of spatiotemporal overlaps on the amplified energy, pulse distortion and intensity profile is unraveled for both AM and zigzag configurations. The model, verified by excellent agreement between the predicted and measured results, can be a powerful tool for designing and optimizing high energy multi-pass solid-state laser amplifiers with AM, zigzag and other geometries.
High Power Laser Science and Engineering
  • Publication Date: Sep. 21, 2020
  • Vol.8 Issue, 3 03000e30 (2020)

About the Cover

The experimental setup for the multi-J OPCPA amplification test stage for evaluate the performance of different type of crystal, operating in the Vulcan laser and the Central Laser Facility, STFC, UKRI.