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Volume 9
Issue 7
10.3390/photonics9070445
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Article

Beam Smoothing Based on Prism Pair for Multistep Pulse Compressor in PW Lasers

by
Shuman Du
1,2,
Xiong Shen
1,
Wenhai Liang
1,2,
Peng Wang
1 and
Jun Liu
1,2,*
1
State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-Intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Photonics 2022, 9(7), 445; https://doi.org/10.3390/photonics9070445
Submission received: 4 June 2022 / Revised: 19 June 2022 / Accepted: 21 June 2022 / Published: 23 June 2022
(This article belongs to the Topic Applications of Photonics, Laser, Plasma and Radiation Physics)
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Abstract

Ultra-short, ultra-intense lasers provide unprecedented experimental tools and extreme physical conditions, enabling the exploration of the frontiers of basic physics. Recently, a multistep pulse compressor (MPC) method was proposed to overcome the limitations of the size and the damage threshold of gratings in the compressor for the realization of a higher-peak-power laser. In the MPC method, beam smoothing is an important process in the pre-compressor. In this study, beam smoothing based on prism pairs is investigated, and the spatial profiles, as well as spectral dispersion properties, are analyzed. The simulation results demonstrate that the prism pair can effectively smooth the laser beam. Furthermore, beam smoothing is found to be more efficient with a shorter separation distance if two prism pairs are arranged to induce spatial dispersion in one or two directions. The beam smoothing results obtained in this study will help optimize optical designs in petawatt (PW) laser systems, thereby improving their output and operational safety.
Keywords: ultra-intense laser; prism; beam smoothing; compressor ultra-intense laser; prism; beam smoothing; compressor

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MDPI and ACS Style

Du, S.; Shen, X.; Liang, W.; Wang, P.; Liu, J. Beam Smoothing Based on Prism Pair for Multistep Pulse Compressor in PW Lasers. Photonics 2022, 9, 445. https://doi.org/10.3390/photonics9070445

AMA Style

Du S, Shen X, Liang W, Wang P, Liu J. Beam Smoothing Based on Prism Pair for Multistep Pulse Compressor in PW Lasers. Photonics. 2022; 9(7):445. https://doi.org/10.3390/photonics9070445

Chicago/Turabian Style

Du, Shuman, Xiong Shen, Wenhai Liang, Peng Wang, and Jun Liu. 2022. "Beam Smoothing Based on Prism Pair for Multistep Pulse Compressor in PW Lasers" Photonics 9, no. 7: 445. https://doi.org/10.3390/photonics9070445

APA Style

Du, S., Shen, X., Liang, W., Wang, P., & Liu, J. (2022). Beam Smoothing Based on Prism Pair for Multistep Pulse Compressor in PW Lasers. Photonics, 9(7), 445. https://doi.org/10.3390/photonics9070445

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