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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 23 — Nov. 7, 2011
  • pp: 22961–22973

Characteristics of laser absorption and welding in FOTURAN glass by ultrashort laser pulses

Isamu Miyamoto, Kristian Cvecek, Yasuhiro Okamoto, Michael Schmidt, and Henry Helvajian  »View Author Affiliations

Optics Express, Vol. 19, Issue 23, pp. 22961-22973 (2011)

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The nonlinear absorptivity of FOTURAN glass to ultrashort laser pulses is evaluated by experimental measurement and thermal conduction model at different parameters including energy and repetition rate of the laser pulse, translation speed and thermal properties of the sample. The mechanical strength of an embedded laser-melted sample and an overlapped weld sample is determined by a three-point-bending test and a shear test, respectively. The results are related to the average absorbed laser power Wab. We found the mechanical strength of an overlapped weld joint to be as high as that of the base material for low Wab, if the sample pair is pre-bonded to provide optical contact.

© 2011 OSA

OCIS Codes
(140.3390) Lasers and laser optics : Laser materials processing
(140.3440) Lasers and laser optics : Laser-induced breakdown
(140.7090) Lasers and laser optics : Ultrafast lasers
(160.2750) Materials : Glass and other amorphous materials
(190.4180) Nonlinear optics : Multiphoton processes
(350.3390) Other areas of optics : Laser materials processing

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 31, 2011
Revised Manuscript: September 22, 2011
Manuscript Accepted: September 24, 2011
Published: October 28, 2011

Isamu Miyamoto, Kristian Cvecek, Yasuhiro Okamoto, Michael Schmidt, and Henry Helvajian, "Characteristics of laser absorption and welding in FOTURAN glass by ultrashort laser pulses," Opt. Express 19, 22961-22973 (2011)

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