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Proceedings Paper

High-power continuous-wave Nd lasers under dioide pumping directly into the 4F3/2 emitting level
Author(s): Nicolaie Pavel; Voicu Lupei
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Paper Abstract

Output performances of Nd-based lasers that were pumped with diode lasers directly into the 4F3/2 emitting level has been investigated at various wavelengths of emission. The end-pumping scheme was used to demonstrate efficient laser emission in the watt-range at 0.94 µm, 1.06 µm and 1.34 µm in Nd:YAG pumped at 885 nm. Nd:YVO4 and Nd:GdVO4 thin-disk lasers with high power emission at 1.06 µm were realized under multi-pass pumping at 880 nm, and for the first time laser emission at 0.91 µm was achieved in this configuration. Intracavity frequency-doubled lasers with emission in the green and blue spectral ranges were obtained. Thus, an end-pumped Nd:GdVO4 laser with 5 W output power at 0.53 µm, and Nd:YVO4 and Nd:GdVO4 thin-disk lasers with output power in excess of 4 W at 0.53 µm were realized. Nd-vanadates thin-disk lasers with ~1 W power into 0.45 µm 'deep-blue' visible spectra were demonstrated. Comparative results with the traditional pumping at 0.81 µm into the highly absorbing 4F5/2 level are presented, proving the advantage of the direct 4F3/2 pumping.

Paper Details

Date Published: 29 April 2008
PDF: 12 pages
Proc. SPIE 7007, INDLAS 2007: Industrial Laser Applications, 700705 (29 April 2008); doi: 10.1117/12.801929
Show Author Affiliations
Nicolaie Pavel, Institutul National pentru Fizica Laserilor, Plasmei si Radiatiei (Romania)
Voicu Lupei, Institutul National pentru Fizica Laserilor, Plasmei si Radiatiei (Romania)


Published in SPIE Proceedings Vol. 7007:
INDLAS 2007: Industrial Laser Applications

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