Resonator design as well as the control of the beam shape are essential for successful application. A huge flat bed system (3,5 x 2,5 m) called 'Big Bertha' and a long optical bench (12 m) called 'Long Bertha' with flexible beam rails has been build as a basic research setup. Allmost all kinds of laser sources, optical components and measurement devices can be mounted and easily positioned with a special system called 'Beam Rail'. Additionally a twin hexapod operated beam expander with variable lenses can be used e.g. in order to optimize magnification factors for AOMs. Results of accurate M2 measurements of different laser sources are presented as well as the influence of various optical elements and examples for close to perfect beam paths are given.
Markus Bohrer, Bernhard Weinberger, and Murad Jamalieh, "Laser-beam characterization and measurement of laser-beam parameters including external optics with a fully automated twin hexapod operated beam expander and evaluation of the influence of optical components on beam quality with defined tilts and shifts (Conference Presentation)," Proc. SPIE 10090, Laser Resonators, Microresonators, and Beam Control XIX, 100901T (Presented at SPIE LASE: February 02, 2017; Published: 21 April 2017); https://doi.org/10.1117/12.2251149.5387835807001.
Laser-beam characterization and measurement of laser-beam parameters including external optics with a fully automated twin hexapod operated beam expander and evaluation of the influence of optical components on beam quality with defined tilts and shifts (Conference Presentation)
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon