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Proceedings Paper

Self-compensation of thermal lensing in optics for high-brightness solid-state lasers
Author(s): Stefan Piehler; Christiane Thiel; Andreas Voss; Marwan Abdou Ahmed; Thomas Graf
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Paper Abstract

The applicability of modern high-brightness solid-state laser sources for material processing purposes is limited by thermally induced effects in the beam guidance optics. These transient thermo-optical aberrations lead to a non-static focus shift and a deterioration of the beam quality. To counterbalance these aberrations, thermally self-compensated optical systems are proposed. The design for these optics is based on a combination of several elements that compensate for each other. Via thermo-mechanical FEM-simulations and the calculation of the resultant wavefront distortion, several multi-component systems are evaluated. In a first step, thermally compensated laser windows have been developed and characterized.

Paper Details

Date Published: 6 February 2012
PDF: 9 pages
Proc. SPIE 8239, High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications, 82390Z (6 February 2012); doi: 10.1117/12.905879
Show Author Affiliations
Stefan Piehler, Univ. Stuttgart (Germany)
Christiane Thiel, Univ. Stuttgart (Germany)
Andreas Voss, Univ. Stuttgart (Germany)
Marwan Abdou Ahmed, Univ. Stuttgart (Germany)
Thomas Graf, Univ. Stuttgart (Germany)

Published in SPIE Proceedings Vol. 8239:
High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications
Eckhard Beyer; Timothy Morris, Editor(s)

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