• Acta Photonica Sinica
  • Vol. 49, Issue 10, 1022001 (2020)
Zhang-fan WEI1、2, Chuan SUN1, Kai GUO1, Ming CHEN1, Li-hua HUANG1、2, Ai-jun ZENG1、2, and Hui-jie HUANG1、2
Author Affiliations
  • 1Laboratory of Information Optics and Optoelectronic Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China
  • 2Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China
  • show less
    DOI: 10.3788/gzxb20204910.1022001 Cite this Article
    Zhang-fan WEI, Chuan SUN, Kai GUO, Ming CHEN, Li-hua HUANG, Ai-jun ZENG, Hui-jie HUANG. Study on Bessel Lens for Picosecond Laser Cutting[J]. Acta Photonica Sinica, 2020, 49(10): 1022001 Copy Citation Text show less

    Abstract

    A Bessel lens for laser cutting and beam measurement system are designed and developed. Additionally, picosecond Bessel beam is generated by a picosecond pulse laser and the designed Bessel lens, and it is used for the cutting experiment on a piece of silicate glass with the thickness of 1 mm. The results show that, by the incidence of a Gaussian beam with certain diameter on the Bessel lens, the central core diameter and non-diffracting propagation distance of the generated Bessel beam are 3.4 μm and 2.46 mm, respectively. In the cutting experiment, the diameters of the surface micro-holes before glass breaking are smaller than the designed central core diameter of Bessel beam. The designed Bessel lens and beam measurement system in this paper can satisfy the application requirements of laser cutting.
    zmax2=β2zmax1=β2ωn-1γ

    View in Article

    ρ0=2.4048βkn-1γ

    View in Article

    θ1D1=αf1+f2+yα

    View in Article

    1f1=1D1+1f1+f2+yα

    View in Article

    θ1=θ2β

    View in Article

    D2=y/θ2

    View in Article

    D2=f2β+1-β2D1

    View in Article

    Zhang-fan WEI, Chuan SUN, Kai GUO, Ming CHEN, Li-hua HUANG, Ai-jun ZENG, Hui-jie HUANG. Study on Bessel Lens for Picosecond Laser Cutting[J]. Acta Photonica Sinica, 2020, 49(10): 1022001
    Download Citation