Laser Beam Shapers Applied in the Laser Micro-Jet Processing

Abstract:

With respect to the methods of precise processing, the laser micro-jet system became a hot topic in recent years. In this paper, inverted Galileo telescope would reform the laser beam of Gaussian distribution into a flat-topped distribution spot, micro-jet is adopted in order to achieve a processing sharp cutter which owned the characterize of more sharp to process. It should be a reformed laser water micro-jet processing. The experiment of laser micro-jet was carried out to make reliable proof. The design of optical path integrated the Galileo shaper would reduce the pulse width under the safe circumstance. The quality of working laser beam was improved with compressing the width of flat-topped of laser beam. Laser micro-jet processing is an international patent technique which was developed by Dr. Bernold Richerzhagen in 1998[1]. During the laser processing, laser micro-jet could be used as light guide, which dues to the total internal reflection at the water-air interface [2.]

• Periodical: Applied Mechanics and Materials (Volumes 29-32)
• Pages: 1925-1929
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.29-32.1925
• Online since: August 2010
• Authors: Xi Zhao Lu, Chun Lin, Zhen Heng Lin, Yuan Qing Huang
• Keywords: Breakdown Threshold, Flat-Topped, Galileo Shaper, Laser Micro-Jet

References

[1] B. Richerzhagen, Method and Apparatus for Machining Material with a Liquid guided Laser Beam, United States Patent．1999：p.1~8.

[2] Natalia Dushkina, Frank R Wagner, Christophe Boillat, Jean-Marie Buchilly, Bernold Richerzhagen, Water Jet Guided Laser vs. Saw Dicing, Photon Processing in Microelectronics and Photonics II. 2003：pp.75-85.

DOI: 10.1117/12.479414

[3] Joseph Battaglia, Tuan Anh Mai, Delphine Perrottetand Bernold Richerzhagen, Water jet as a multimode waveguide theoretical and experimental investigation of modal noise and beam propagation in material processing with laser micro-jet. 25th International Congress on Applications of Laser and Electro-Optics, (2006).

DOI: 10.2351/1.5060901

[4] Bernold Richerzhagen, Roy Housh, Frank Wagner Water Jet Guided Laser Cutting: a Powerful Hybrid Technology for Fine Cutting and Grooving G. Henkelman, G. Johannesson and H. Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D. Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000).

[5] Chen Xiao, Studies on Mechanisms of the interaction between high Power laser and matter in water, Nanjing University of Science & Technology, The Ph.D. Dissertation(2004).

[6] Wang ZhaoHua, Jing Zhan, Zhen Jia An, Wang Pen, Wei ZhiYi, Zhang Jie. Ultrashort laser wavefront correction, SCIENCE IN CHINA Ser. G Physics, Mechanics & Astronomy, 2004, 34(6): 620-627.

[7] Li Ling, Study on water-jet guided laser micromachining technology, Harbin Institute of Technology The Ph.D. Dissertation (2008).