A 1kW azimuthally polarized CO2 laser

Masamori Endo

doi:10.1117/12.816675

17 April 2009 A 1kW azimuthally polarized CO₂ laser

Masamori Endo

Proceedings Volume 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 71311D (2009) https://doi.org/10.1117/12.816675
Event: XVII International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2008, Lisboa, Portugal

Abstract

An optical resonator for generating high-power, cylindrically polarized beams is demonstrated. The rear mirror of a commercial CO₂ laser is replaced by a novel triple-axicon retroreflector unit that is composed of a waxicon and an axicon accurately fitted together. Selection of the polarization is made by the reflectivity difference between p and s polarizations at the inclined surfaces. The resonator is designed for radially polarized oscillation, however, the output beam is azimuthally polarized because the oscillation occurs at unexpected 9.6 μm. A stable 1 kW output is generated, and the measured beam quality is M²=2.0.

Citation Download Citation

Masamori Endo "A 1kW azimuthally polarized CO₂ laser", Proc. SPIE 7131, XVII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 71311D (17 April 2009); https://doi.org/10.1117/12.816675

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