Beam spatial intensity modification based on stimulated Brillouin amplification

Yue Wang; Can Cui; Zhiwei Lu; Zhenxu Bai; Yulei Wang; Hang Yuan

doi:10.1364/OE.462032

Beam spatial intensity modification based on stimulated Brillouin amplification

Yue Wang
, Can Cui
, Zhiwei Lu^*
, Zhenxu Bai
, Yulei Wang
, Hang Yuan

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
Hebei University of Technology
Hebei Key Laboratory of Advanced Laser Technology and Equipment

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The beam spatial intensity distribution is critical to laser applications both in the scientific and the industrial fields. Here, a method for beam spatial intensity modification based on stimulated Brillouin amplification (SBA) is proposed, which provides an alternative approach of laser beam shaping accompanied by efficient energy amplification. Three beam shaping schemes based on SBA has been demonstrated and evaluated in theoretical simulation and experiments with pulsed laser. The results indicate that the spatial distribution can be modified by manipulation of the beam polarization and the intensity. Finally, the shaped Stokes beam has been modified into the flat-top distribution with the output pulse energy increasing to 4.43 times of the input energy, proving the feasibility of SBA spatial shaping method.

Original language	English
Pages (from-to)	35792-35806
Number of pages	15
Journal	Optics Express
Volume	30
Issue number	20
DOIs	https://doi.org/10.1364/OE.462032
State	Published - 26 Sep 2022

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title = "Beam spatial intensity modification based on stimulated Brillouin amplification",

abstract = "The beam spatial intensity distribution is critical to laser applications both in the scientific and the industrial fields. Here, a method for beam spatial intensity modification based on stimulated Brillouin amplification (SBA) is proposed, which provides an alternative approach of laser beam shaping accompanied by efficient energy amplification. Three beam shaping schemes based on SBA has been demonstrated and evaluated in theoretical simulation and experiments with pulsed laser. The results indicate that the spatial distribution can be modified by manipulation of the beam polarization and the intensity. Finally, the shaped Stokes beam has been modified into the flat-top distribution with the output pulse energy increasing to 4.43 times of the input energy, proving the feasibility of SBA spatial shaping method.",

author = "Yue Wang and Can Cui and Zhiwei Lu and Zhenxu Bai and Yulei Wang and Hang Yuan",

note = "Publisher Copyright: {\textcopyright} 2022 Optica Publishing Group.",

year = "2022",

month = sep,

day = "26",

doi = "10.1364/OE.462032",

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T1 - Beam spatial intensity modification based on stimulated Brillouin amplification

AU - Wang, Yue

AU - Cui, Can

AU - Lu, Zhiwei

AU - Bai, Zhenxu

AU - Wang, Yulei

AU - Yuan, Hang

PY - 2022/9/26

Y1 - 2022/9/26

N2 - The beam spatial intensity distribution is critical to laser applications both in the scientific and the industrial fields. Here, a method for beam spatial intensity modification based on stimulated Brillouin amplification (SBA) is proposed, which provides an alternative approach of laser beam shaping accompanied by efficient energy amplification. Three beam shaping schemes based on SBA has been demonstrated and evaluated in theoretical simulation and experiments with pulsed laser. The results indicate that the spatial distribution can be modified by manipulation of the beam polarization and the intensity. Finally, the shaped Stokes beam has been modified into the flat-top distribution with the output pulse energy increasing to 4.43 times of the input energy, proving the feasibility of SBA spatial shaping method.

AB - The beam spatial intensity distribution is critical to laser applications both in the scientific and the industrial fields. Here, a method for beam spatial intensity modification based on stimulated Brillouin amplification (SBA) is proposed, which provides an alternative approach of laser beam shaping accompanied by efficient energy amplification. Three beam shaping schemes based on SBA has been demonstrated and evaluated in theoretical simulation and experiments with pulsed laser. The results indicate that the spatial distribution can be modified by manipulation of the beam polarization and the intensity. Finally, the shaped Stokes beam has been modified into the flat-top distribution with the output pulse energy increasing to 4.43 times of the input energy, proving the feasibility of SBA spatial shaping method.

UR - https://www.scopus.com/pages/publications/85138467293

U2 - 10.1364/OE.462032

DO - 10.1364/OE.462032

M3 - 文章

C2 - 36258522

AN - SCOPUS:85138467293

SN - 1094-4087

VL - 30

SP - 35792

EP - 35806

JO - Optics Express

JF - Optics Express

IS - 20

ER -

Beam spatial intensity modification based on stimulated Brillouin amplification

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