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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 25 — Dec. 6, 2010
  • pp: 26068–26076

Impact of two CO2 laser heatings for damage repairing on fused silica surface

P. Cormont, L. Gallais, L. Lamaignère, J. L. Rullier, P. Combis, and D. Hebert  »View Author Affiliations

Optics Express, Vol. 18, Issue 25, pp. 26068-26076 (2010)

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CO2 laser is an interesting tool to repair defects on silica optics. We studied UV nanosecond laser-induced damage in fused silica after CO2 laser heating. The localization of damage sites and the laser damage threshold are closely related to stress area in silica induced by heating. By applying a suitable second laser heating, we managed to eliminate the debris issued from redeposited silica and to modify the stress area. As a consequence, a significant increase of laser resistance has been observed. This process offers the possibility to improve damage repairing sufficiently to extend the lifetime of the silica components.

© 2010 OSA

OCIS Codes
(140.3330) Lasers and laser optics : Laser damage
(160.6030) Materials : Silica
(220.4610) Optical design and fabrication : Optical fabrication

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 20, 2010
Revised Manuscript: October 27, 2010
Manuscript Accepted: October 28, 2010
Published: November 30, 2010

P. Cormont, L. Gallais, L. Lamaignère, J. L. Rullier, P. Combis, and D. Hebert, "Impact of two CO2 laser heatings for damage repairing on fused silica surface," Opt. Express 18, 26068-26076 (2010)

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