Mode-locked YAG:Nd(3)+ laser with a high output energy and brightness

A description is given of a YAG:Nd(3+) laser with an unstable confocal resonator operating in the mode-locked regime. The resonator was from a 100 percent reflecting 2-m radius of curvature convex mirror and a concave glass substrate having a 4-m radius of curvature, which served as an exit mirror....

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Bibliographic Details
Published in:Soviet journal of quantum electronics 1983-09, Vol.13, p.1251
Main Authors: VARNAVSKII, O P, Leontovich, A M, MOZHAROVSKII, A M, Solomatin, I I
Format: Article
Language:English
Online Access:Get full text
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Summary:A description is given of a YAG:Nd(3+) laser with an unstable confocal resonator operating in the mode-locked regime. The resonator was from a 100 percent reflecting 2-m radius of curvature convex mirror and a concave glass substrate having a 4-m radius of curvature, which served as an exit mirror. A solution of dye No. 3274u in dichlorethane was used as a saturable filter. The latter had an initial transmission of 30 percent. For an active medium volume of about 5 cu m the energy of a train of ultrashort pulses was 150 mJ, that of the maximum pulse in the train being 50 mJ. The pulse duration was about 40 psec. The radiation divergence was close to the diffraction limit, having a value of about 0.3 mrad.
ISSN:0049-1748