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Proceedings Paper

Beam-quality enhancement in multi-kW rod-based lasers by use of radially polarized light and phase-front correction
Author(s): Inon Moshe; Steven Jackel; Avi Meir; Yaakov Lumer; Galina Machavariani; Shai Rosenberg
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Paper Abstract

We developed a Nd:YAG rod-based MOPA to generate high power in a radially-polarized beam. Two pump-chambers in the amplifier section produced 2.1kW @ M2=9.5, while three pump-chambers yielded 3.1kW @ M2=14. Efficiency in the last pump-chamber was 33%. Several techniques were utilized to enhance beam-quality: an azimuthally-polarized oscillator, special pump-chambers, external compensation of lower-order aberrations, and high-order aberration compensation by pairing pump-chambers.

Paper Details

Date Published: 14 February 2007
PDF: 9 pages
Proc. SPIE 6452, Laser Resonators and Beam Control IX, 645202 (14 February 2007); doi: 10.1117/12.721038
Show Author Affiliations
Inon Moshe, Soreq Nuclear Research Ctr. (Israel)
Steven Jackel, Soreq Nuclear Research Ctr. (Israel)
Avi Meir, Soreq Nuclear Research Ctr. (Israel)
Yaakov Lumer, Soreq Nuclear Research Ctr. (Israel)
Galina Machavariani, Soreq Nuclear Research Ctr. (Israel)
Shai Rosenberg, Soreq Nuclear Research Ctr. (Israel)

Published in SPIE Proceedings Vol. 6452:
Laser Resonators and Beam Control IX
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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