Improving the laser brightness of a commercial laser system

Darryl Naidoo; Igor Litvin; Andrew Forbes

doi:10.1117/12.2244293

3 February 2017 Improving the laser brightness of a commercial laser system

Darryl Naidoo; Igor Litvin; Andrew Forbes

Author Affiliations +

Proceedings Volume 10036, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems; 100360V (2017) https://doi.org/10.1117/12.2244293
Event: Fourth Conference on Sensors, MEMS and Electro-Optic Systems, 2016, Skukuza, Kruger National Park, South Africa

Abstract

We investigate the selection of a flat-top beam and a Gaussian beam inside a laser cavity on opposing mirrors. The concept is tested external to the laser cavity in a single pass and double pass regime where the latter mimics a single round trip in the laser. We implement this intra-cavity selection through the use of two 16 level diffractive optical elements. We consider a solid-state diode side-pumped laser resonator in a typical commercial laser configuration that consists of two planar mirrors where the DOEs are positioned at the mirrors. We out couple the Gaussian and flat-top distributions and we show that we improve the brightness of the laser with active mode control. We also demonstrate that the quality of the beam transformations determine the brightness improvement.

Citation Download Citation

Darryl Naidoo, Igor Litvin, Andrew Forbes, "Improving the laser brightness of a commercial laser system", Proc. SPIE 10036, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems, 100360V (3 February 2017); doi: 10.1117/12.2244293; https://doi.org/10.1117/12.2244293

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