This paper presents two optical devices which make it possible to shape CO2 laser beams for surface heat treatment applications.

The first, based on the use of a deformable mirror, makes it possible to achieve a homogeneous treatment of a surface. After describing its basic principles, examples of the application to a XC42 steel are given with different settings of the optical device. To facilitate implementation in various industrial environments, a second optical device based on a segmented mirror technology has been developed. After describing its basic principles, some examples of the focusing and application to a 45NCD16 steel are showed.

Topics
Adaptive optics, Optical devices
1.
Bataille
F
; “
Contrôle en temps réel de températures au cours de traitements de surface par laser à CO2 multikilowatts
”, Thèse Doc.
Univ. Paris VI
, 14.02.1991
2.
Hardy
J.W.
 “
Active optics: A new technology for the control of light
”
Proceedings of the IEEE
, Vol.
66
n°6, June
1978
, pages
651
–
698
Google Scholar
 
3.
J.P.
Alfille
 et al, “Mise en forme de faisceaux laser par une optique adaptative pour des applications de traitement de surface”,
5ème CISFFEL
,
La Baule, France
, Juin
1993
Google Scholar
 
This content is only available via PDF.
© 1994 Laser Institute of America.
1994
Laser Institute of America
You do not currently have access to this content.