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Proceedings Paper

High-power TEM00-mode operation of diode-pumped solid state lasers
Author(s): Norman Hodgson; Kim D. Griswold; Wilhelm A. Jordan; Steve L. Knapp; Amy A. Peirce; Christopher C. Pohalski; Emily A. P. Cheng; John Cole; Dave R. Dudley; Alan B. Petersen; William L. Nighan
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Paper Abstract

The performance of end-pumped YAG and YVO4 lasers in fundamental mode operation (M2 < 1.1) is reviewed and the physical limits of TEM00 output power is discussed. By using special resonator configurations, end-pumped lasers can be designed to provide high-power, excellent beam quality, and high-efficiency in spite of the large phase distortions commensurate with the strong aberrated thermal focusing. A 35 W infrared Nd:YVO4 laser was developed with a quantum efficiency of 94%, defined as a percentage of 1064 nm photons generated per quantity of absorbed 809 nm pump photon. A Q-switched end-pumped Nd:YAG laser provides an average output power greater 15 W in a polarized TEM00 mode with 29% optical efficiency at 1064 nm. External frequency doubling and tripling of this laser resulted in maximum output powers of 8.8 W and 4.2 W, respectively.

Paper Details

Date Published: 24 May 1999
PDF: 13 pages
Proc. SPIE 3611, Laser Resonators II, (24 May 1999); doi: 10.1117/12.349265
Show Author Affiliations
Norman Hodgson, Spectra-Physics Lasers, Inc. (United States)
Kim D. Griswold, Spectra-Physics Lasers, Inc. (United States)
Wilhelm A. Jordan, Spectra-Physics Lasers, Inc. (United States)
Steve L. Knapp, Spectra-Physics Lasers, Inc. (United States)
Amy A. Peirce, Spectra-Physics Lasers, Inc. (United States)
Christopher C. Pohalski, Spectra-Physics Lasers, Inc. (United States)
Emily A. P. Cheng, Spectra-Physics Lasers, Inc. (United States)
John Cole, Spectra-Physics Lasers, Inc. (United States)
Dave R. Dudley, Spectra-Physics Lasers, Inc. (United States)
Alan B. Petersen, Spectra-Physics Lasers, Inc. (United States)
William L. Nighan, Spectra-Physics Lasers, Inc. (United States)


Published in SPIE Proceedings Vol. 3611:
Laser Resonators II
Alexis V. Kudryashov, Editor(s)

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