Vortex and LG01-mode Nd:YAG laser involving a circular Dammann grating

Yun Xu; Xiahui Han; Guiyun Li; Jinyu Liu; Kegui Xia; Jianlang Li

doi:10.1117/1.OE.55.5.056101

5 May 2016 Vortex and LG₀₁-mode Nd:YAG laser involving a circular Dammann grating

Yun Xu, Xiahui Han, Guiyun Li, Jinyu Liu, Kegui Xia, Jianlang Li

Author Affiliations +

Optical Engineering, Vol. 55, Issue 5, 056101 (May 2016). https://doi.org/10.1117/1.OE.55.5.056101

Abstract

By introducing a circular Dammann grating (CDG) into the pump unit, we demonstrated an end-pumped Nd:YAG laser that emitted a vortex and first-order LG mode with high laser efficiency and high power. In our scheme, the CDG was used to reshape the pumping light into an annular profile, and the adaptation of it was realized easily by inserting it into the pump unit of a conventional end-pumped solid-state laser; the laser cavity was simple, compact, and consisted of only a laser crystal and an output coupler. The beam power of this laser reached 1.86 W at an absorbed pump power of 6.38 W with a slope efficiency of 34.5%.

Citation Download Citation

Yun Xu, Xiahui Han, Guiyun Li, Jinyu Liu, Kegui Xia, and Jianlang Li "Vortex and LG₀₁-mode Nd:YAG laser involving a circular Dammann grating," Optical Engineering 55(5), 056101 (5 May 2016). https://doi.org/10.1117/1.OE.55.5.056101

Published: 5 May 2016

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