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Proceedings Paper

Output beam characteristics of a Nd:YVO4 miniature laser
Author(s): Nicolaie A. Pavel; Takunori Taira; M. Furuhata; Takao Kobayashi
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Paper Abstract

The output beam characteristics of a CW diode end-pumped miniature Nd:YVO4 laser (1.1 at.%, 1 X 3 X 3 mm3) operating in fundamental and SHG regime are presented. Using M2 factor to describe the multimode pump beam's propagation from the broad-emission-area diode-laser the coupling optics was designed to obtain a high value for the mode-matching efficiency. A maximum slope efficiency of (eta) s equals 58.6%, with (eta) 0 equals 53.8% optically efficiency at maximum pump power, characterized a laser resonator of 50 mm length in transversal TEM00 mode. In the SHG experiments using a KTP crystal a maximum power of 100 mW was reach in a circular laser beam of 4.2 mrad half-angle divergence.

Paper Details

Date Published: 2 July 1998
PDF: 7 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998);
Show Author Affiliations
Nicolaie A. Pavel, National Institute for Laser, Plasma, and Radiation Physics (Japan)
Takunori Taira, Fukui Univ. (Japan)
M. Furuhata, Fukui Univ. (Japan)
Takao Kobayashi, Fukui Univ. (Japan)

Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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