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Proceedings Paper

Generation of multikilowatt radially or azimuthally polarized CO2 laser beams by a triple-axicon optical resonator
Author(s): Masamori Endo
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Paper Abstract

A 2kW cylindrically polarized laser beams by using a triple-axicon optical resonator is demonstrated. The rear mirror of a commercial CO2 laser is replaced by the optical component 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 reflectivity is designed to rs>rp so that the resonator is oscillated in azimuthally polarized mode. The output beam is converted to radially polarized beam by a converter composed of four λ/4 phase retarders. The polarization conversion efficiency is 98.5% and the power conversion efficiency is 95%.

Paper Details

Date Published: 17 February 2010
PDF: 9 pages
Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75790F (17 February 2010); doi: 10.1117/12.839664
Show Author Affiliations
Masamori Endo, Tokai Univ. (Japan)

Published in SPIE Proceedings Vol. 7579:
Laser Resonators and Beam Control XII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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