Output beam characteristics of a Nd:YVO4 miniature laser

Nicolaie A. Pavel; Takunori Taira; M. Furuhata; Takao Kobayashi

doi:10.1117/12.312776

2 July 1998 Output beam characteristics of a Nd:YVO₄ miniature laser

Nicolaie A. Pavel, Takunori Taira, M. Furuhata, Takao Kobayashi

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312776
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

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.

Citation Download Citation

Nicolaie A. Pavel, Takunori Taira, M. Furuhata, and Takao Kobayashi "Output beam characteristics of a Nd:YVO₄ miniature laser", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312776

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