Nd:YAG laser continuous wave-pumped Q-switched by hybrid passive-active methods

Traian Dascalu; Constanta Dascalu; Nicolaie A. Pavel

doi:10.1117/12.432899

29 June 2001 Nd:YAG laser continuous wave-pumped Q-switched by hybrid passive-active methods

Traian Dascalu, Constanta Dascalu, Nicolaie A. Pavel

Proceedings Volume 4430, ROMOPTO 2000: Sixth Conference on Optics; (2001) https://doi.org/10.1117/12.432899
Event: ROMOPTO 2000: Sixth Conference on Optics, 2000, Bucharest, Romania

Abstract

The output characteristics of a continuous-wave flash lamp pumped Nd:YAG laser, passively Q-switched by Cr⁴⁺:YAG are reported. In order to control the small-signal transmission of the passive Q-switch, a new method, which made use of a miniature laser placed out of the resonator, is described theoretically and proved experimentally. Further, the combination of a Cr⁴⁺:YAG passive Q-switch and an acoustooptic Q- switch that work together in a Nd:YAG CW pumped laser was investigated. With a two-rod resonator and a Cr⁴⁺:YAG crystal as saturable absorber, an average laser output power over 180W was reached. The pulse-to-pulse stability was 1%. Folded resonator was used in order to obtain intracavity second harmonic generation in active and passive Q-switch mode.

Citation Download Citation

Traian Dascalu, Constanta Dascalu, and Nicolaie A. Pavel "Nd:YAG laser continuous wave-pumped Q-switched by hybrid passive-active methods", Proc. SPIE 4430, ROMOPTO 2000: Sixth Conference on Optics, (29 June 2001); https://doi.org/10.1117/12.432899

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