Extra-cavity laser beam shaping using an Nd: YAG amplifier

Bell, Teboho; King, Gary; Litvin, Igor A.

doi:10.1117/12.2543370

Cited by 2 publications

(1 citation statement)

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“…However, these systems still have several technical possibilities, such as different material compositions, procedural manufacturing challenges, 16 laser delivery systems, 17 thermal lensing, 18 and different beam shapes. 19,20 In this article, our research focused on thermal lensing in high-powered solid-state lasers.…”

Section: Introductionmentioning

confidence: 99%

Active control of focus position of laser beams using thermally induced lensing

Bell

Mabena

Naidoo

2023

Laser Resonators, Microresonators, and Beam Control XXV

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In this paper, we present a method for active control of thermally induced lensing in high-power lasers. We used thermal lensing to study the advantages of high-power lasers. Many delivery optics are sensitive to the thermally induced lens, which can change the focus position of the transmitted beam. To compensate for this, we used thermal lensing by pumping a crystal that had no absorption or amplification at the seed beam wavelength. By controlling the strength of the heat source, we demonstrate acute control of the focus position. Our modelling work is based on the finite-volume method (FVM) to analyse thermal effects in end-pumped solid-state crystals. This work has the potential to pave the way for active control of a thermally induced lens in high-powered laser-based applications.

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Section: Introductionmentioning

confidence: 99%

Active control of focus position of laser beams using thermally induced lensing

Bell

Mabena

Naidoo

2023

Laser Resonators, Microresonators, and Beam Control XXV

Self Cite

View full text Add to dashboard Cite

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Beam spatial intensity modification based on stimulated Brillouin amplification

Wang¹,

Cui²,

Lv³

et al. 2022

Opt. Express

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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.

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Extra-cavity laser beam shaping using an Nd: YAG amplifier

Cited by 2 publications

References 0 publications

Active control of focus position of laser beams using thermally induced lensing

Active control of focus position of laser beams using thermally induced lensing

Beam spatial intensity modification based on stimulated Brillouin amplification

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