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Optical Engineering

Vortex and LG01-mode Nd:YAG laser involving a circular Dammann grating
Author(s): Yun Xu; Xiahui Han; Guiyun Li; Jinyu Liu; Kegui Xia; Jianlang Li
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Paper 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%.

Paper Details

Date Published: 5 May 2016
PDF: 5 pages
Opt. Eng. 55(5) 056101 doi: 10.1117/1.OE.55.5.056101
Published in: Optical Engineering Volume 55, Issue 5
Show Author Affiliations
Yun Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Xiahui Han, Shanghai Institute of Optics and Fine Mechanics (China)
Guiyun Li, Shanghai Institute of Optics and Fine Mechanics (China)
Jinyu Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Kegui Xia, Shanghai Institute of Optics and Fine Mechanics (China)
Jianlang Li, Shanghai Institute of Optics and Fine Mechanics (China)


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