Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Localized CO2 laser damage repair of fused silica optics

Not Accessible

Your library or personal account may give you access

Abstract

A technique has been developed for the localized treatment of laser damage sites in fused silica optics by CO2 laser melt-flow smoothing, by using a 50 to 125  μm diameter beam in a regime that avoids mass removal by ablation. A detailed calibration of the laser irradiance for the threshold ablation of craters was carried out for a range of beam diameters and pulses in the 20 μs to 200 ms range. The results agree with a thermal model that also provides estimates of the melt depth for the different irradiation conditions. Smoothing trials for glass melting at irradiance values just below the ablation threshold irradiance were conducted to determine the optimum conditions and limits for the smoothing process. The technique has been found to remove damage pits up to a depth of 0 .5 μm, while the small melt depth associated with localized treatment limits the smoothing to a 5  μm lateral size.

© 2006 Optical Society of America

Full Article  |  PDF Article
More Like This
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
Opt. Express 18(25) 26068-26076 (2010)

Efficient laser polishing of silica micro-optic components

Krzysztof M. Nowak, Howard J. Baker, and Denis R. Hall
Appl. Opt. 45(1) 162-171 (2006)

Removal of scratches on fused silica optics by using a CO2 laser

P. Cormont, P. Combis, L. Gallais, C. Hecquet, L. Lamaignère, and J. L. Rullier
Opt. Express 21(23) 28272-28289 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved