Novel fusion welding technology of glass using ultrashort pulse lasers

Isamu Miyamoto, Alexander Horn, Jens Gottmann, Dirk Wortmann, Ilja Mingareev, Fumiyo Yoshino, Michael Schmidt, Peter Bechtold, Yasuhiro Okamoto, Yoshiyuki Uno, Thomas Herrmann

Research output: Contribution to conferencePaper

13 Citations (Scopus)

Abstract

We have developed a novel fusion welding technology of glass using ultrashort laser pulses of fs∼ps durations without preheating and absorbent, enabling selective melting of only the interface of glass plates. The present article overviews the welding technology of glass based on recent papers published by the authors along with our recent results, where a comprehensive study has been conducted on fusion welding of fused silica and borosilicate glass using ultrashort laser pulses at different pulse energies, pulse durations and repetition rates, numerical apertures of focusing lens and translation speeds of glass sample. Nonlinear absorptivity and mechanism for preventing cracks are also discussed. A thermal conduction model has been developed to calculated the transient temperature distribution and isothermal line of molten zone, and the calculated isothermal line agreed well with the experimental size and shape of the molten zone. Mechanical strength of fusion zone was as high as that of base material. Successful overlapped welding of 10 paths is demonstrated. High throughput has been realized, indicating that ultrashort pulse lasers are excellent heat source for fusion welding of glass.

Original languageEnglish
Pages112-121
Number of pages10
Publication statusPublished - 2008
EventICALEO 2008 - 27th International Congress on Applications of Lasers and Electro-Optics - Temecula, CA, United States
Duration: Oct 20 2008Oct 23 2008

Other

OtherICALEO 2008 - 27th International Congress on Applications of Lasers and Electro-Optics
CountryUnited States
CityTemecula, CA
Period10/20/0810/23/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Miyamoto, I., Horn, A., Gottmann, J., Wortmann, D., Mingareev, I., Yoshino, F., Schmidt, M., Bechtold, P., Okamoto, Y., Uno, Y., & Herrmann, T. (2008). Novel fusion welding technology of glass using ultrashort pulse lasers. 112-121. Paper presented at ICALEO 2008 - 27th International Congress on Applications of Lasers and Electro-Optics, Temecula, CA, United States.