Efficient quasi-three-level laser emission of Nd:YAG

Voicu Lupei; Nicolaie A. Pavel; Takunori Taira

doi:10.1117/12.598044

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21 October 2004 Efficient quasi-three-level laser emission of Nd:YAG

Voicu Lupei, Nicolaie A. Pavel, Takunori Taira

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Proceedings Volume 5581, ROMOPTO 2003: Seventh Conference on Optics; (2004) https://doi.org/10.1117/12.598044
Event: ROMOPTO 2003: Seventh Conference on Optics, 2003, Constanta, Romania

Abstract

Efficient quasi-three-level emission at 946 nm in Nd:YAG requires a proper balance between the laser emission and the reabsorption induced by the residual thermal population of the terminal laser level. The paper shows that the emission properties can be increased by direct 885 nm pumping into the emitting level (slope efficiency in absorbed power equal to 0.68, compared with 0.48 for the traditional pumping at 809 nm) and infers that the reduced pump absorption can be overcome by using laser resonators with multi-pass of pump radiation inside the laser material.

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Voicu Lupei, Nicolaie A. Pavel, and Takunori Taira "Efficient quasi-three-level laser emission of Nd:YAG", Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); https://doi.org/10.1117/12.598044

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