Intracavity Generation of Radially Polarized CO2 Laser Beams Based on a Simple Binary Dielectric Diffraction Grating

Moser, Tobias; Balmer, Jürg; Delbeke, Dana; Muys, Peter; Verstuyft, Steven; Baets, Roel (2006). Intracavity Generation of Radially Polarized CO2 Laser Beams Based on a Simple Binary Dielectric Diffraction Grating. Applied optics, 45(33), pp. 8517-8522. Washington, D.C.: Optical Society of America 10.1364/AO.45.008517

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Text ao-45-33-8517.pdf - Published Version Available under License Publisher holds Copyright. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. Download (768kB) | Preview

We present experimental results on the intracavity generation of radially polarized light by incorporation of a polarization-selective mirror in a CO2 -laser resonator. The selectivity is achieved with a simple binary dielectric diffraction grating etched in the backsurface of the mirror substrate. Very high polarization selectivity was achieved, and good agreement of simulation and experimental results is shown. The overall radial polarization purity of the generated laser beam was found to be higher than 90% .

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