Self-compensation of thermal lensing in optics for high-brightness solid-state lasers

Stefan Piehler; Christiane Thiel; Andreas Voss; Marwan Abdou Ahmed; Thomas Graf

doi:10.1117/12.905879

6 February 2012 Self-compensation of thermal lensing in optics for high-brightness solid-state lasers

Stefan Piehler, Christiane Thiel, Andreas Voss, Marwan Abdou Ahmed, Thomas Graf

Proceedings Volume 8239, High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications; 82390Z (2012) https://doi.org/10.1117/12.905879
Event: SPIE LASE, 2012, San Francisco, California, United States

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.

Citation Download Citation

Stefan Piehler, Christiane Thiel, Andreas Voss, Marwan Abdou Ahmed, and Thomas Graf "Self-compensation of thermal lensing in optics for high-brightness solid-state lasers", Proc. SPIE 8239, High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications, 82390Z (6 February 2012); https://doi.org/10.1117/12.905879

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