Evaluation of thermal effects on the beam quality of disk laser with unstable resonator

Shayganmanesh, Mahdi; Beirami, Reza

doi:10.1016/j.optcom.2016.08.068

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…When a laser beam is irradiated on a deformed optical surface, the propagation direction of the laser beam deviates from the theoretical direction. This leads to problems such as optical path difference and thermal lensing effects [3,4], which degrade the optical performance.…”

Section: Introductionmentioning

confidence: 99%

Calculating the area of a particular deformation region of an optical surface based on the finite element method

2023

J. Opt.

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To study the deformation of an optical surface and its effect on optical performance, a method based on the finite element method for calculating the area of a particular deformation region of an optical surface is proposed, and a concept of effective area ratio is further introduced to describe the effect of deformation on optical performance. The principle of the method is presented, and the deformation of a potassium dihydrogen phosphate (KH2PO4, KDP) crystal is studied using this method, while the calculation accuracy is discussed. The results demonstrate that the method and the concept of effective area ratio are available for studying the deformation of an optical surface and its effect on optical performance.

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Section: Introductionmentioning

confidence: 99%

Calculating the area of a particular deformation region of an optical surface based on the finite element method

2023

J. Opt.

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“…Beam quality of the light exiting from lasers is usually quite poor in high-energy lasers) because of multimode oscillation, thermal effect, phase perturbation, and so on [1][2][3][4]. Nowadays, AO (adaptive optics) systems have been extensively used to improve the beam quality in high-energy lasers [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Potential of Laser Beam Quality Improvement by Adaptive Optics System

Han

Cui

et al. 2019

International Journal of Optics

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AO (adaptive optics) systems have been extensively used to improve the beam quality in high-energy lasers; however, few studies have focused on how much the beam quality could be improved. A novel evaluation criteria and factor is presented in this paper. The factor, defined as power in ring (PIR), is expressed by distinguishing the low- and high-spatial frequency components in the far-field laser intensity distribution. Beams with different PIR values are generated in our model, and then they are compensated by AO systems. Calculation result shows that the PIR factor could evaluate a laser beam’s improvement potential by an AO system quantitatively.

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Beam quality improvement by population-dynamic-coupled combined guiding effect in end-pumped Nd:YVO4 laser oscillator

Shen

Gong

2018

Appl. Phys. B

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Evaluation of thermal effects on the beam quality of disk laser with unstable resonator

Cited by 4 publications

References 19 publications

Calculating the area of a particular deformation region of an optical surface based on the finite element method

Calculating the area of a particular deformation region of an optical surface based on the finite element method

Evaluating the Potential of Laser Beam Quality Improvement by Adaptive Optics System

Beam quality improvement by population-dynamic-coupled combined guiding effect in end-pumped Nd:YVO4 laser oscillator

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