Thermal lens shaping in Brewster gain media: A high-power, diode-pumped Nd:GdVO4 laser | Zendy

Nathan W. Rimington | Zendy; Stephanie L. Schieffer | Zendy; W. Andreas Schroeder | Zendy; Brian K. Brickeen | Zendy

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Thermal lens shaping in Brewster gain media: A high-power, diode-pumped Nd:GdVO4 laser

Author(s) -

Nathan W. Rimington,

Stephanie L. Schieffer,

W. Andreas Schroeder,

Brian K. Brickeen

Publication year - 2004

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.12.001426

Subject(s) - optics , materials science , laser , laser beam quality , lens (geology) , resonator , laser diode , active laser medium , diode , laser power scaling , optoelectronics , physics , laser beams

A straightforward method is presented for generating a stigmatic spherical thermal lens in laser-diode-pumped, Brewster-cut solid-state gain media by shaping the aspect ratio of the elliptical pumped region. Demonstration of this laser head design with Nd:GdVO(4) as the gain medium yields a stable, efficient, high-power (>20W) diode-pumped laser at 1063nm. Analysis of the spatial mode characteristics of a 67cm-long symmetric resonator both confirms the radially symmetric nature of the pump-induced thermal lens and indicates that laser resonators incorporating this head design can readily generate a high spatial beam quality (M(2) < 2).

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