The propagations and thermal effects in material of laser beams with different spatial profiles

Weiping Wang; Yuan Yonghua; Baida Lu; Cangli Liu

doi:10.1117/12.516991

1 August 2003 The propagations and thermal effects in laser beam material of different spatial profiles

Weiping Wang, Yuan Yonghua, Baida Lu, Cangli Liu

Proceedings Volume 4948, 25th International Congress on High-Speed Photography and Photonics; (2003) https://doi.org/10.1117/12.516991
Event: 25th international Congress on High-Speed photography and Photonics, 2002, Beaune, France

Abstract

Different laser beam distributions such as the beam with uniform profile. Gaussian, super-Gaussian and flattened Gaussian beams is discussed. Under the same power and radius, the expressions of intensity distributions and beam fill factors (the ratio of maximum intensity to average intensity) varying with beam orders for these beams have been derived, the propagations of laser beams with different profiles through an aperture lens are analyzed and compared. In the heat conduction equation, laser beam with different spatial profiles as a surface heat source is included. Numerical calculations are performed to give the different thermal effects on a thin 30CrMnSiA metal slab induced by these beams.

Citation Download Citation

Weiping Wang, Yuan Yonghua, Baida Lu, and Cangli Liu "The propagations and thermal effects in laser beam material of different spatial profiles", Proc. SPIE 4948, 25th International Congress on High-Speed Photography and Photonics, (1 August 2003); https://doi.org/10.1117/12.516991

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