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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 21 — Oct. 21, 2013
  • pp: 25107–25112

Solar-Pumped TEM00 Mode Nd:YAG laser

Dawei Liang and Joana Almeida  »View Author Affiliations

Optics Express, Vol. 21, Issue 21, pp. 25107-25112 (2013)

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Here we show a significant advance in solar-pumped laser beam brightness by utilizing a 1.0 m diameter Fresnel lens and a 3 mm diameter Nd:YAG single-crystal rod. The incoming solar radiation is firstly focused by the Fresnel lens on a solar tracker. A large aspheric lens and a 2D-CPC concentrator are then combined to further compress the concentrated solar radiation along the thin laser rod within a V-shaped pumping cavity. 2.3 W cw TEM00 (M2 ≤ 1.1) solar laser power is finally produced, attaining 1.9 W laser beam brightness figure of merit, which is 6.6 times higher than the previous record. For multimode operation, 8.1 W cw laser power is produced, corresponding to 143% enhancement in collection efficiency.

© 2013 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3410) Lasers and laser optics : Laser resonators
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3570) Lasers and laser optics : Lasers, single-mode

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 22, 2013
Revised Manuscript: September 20, 2013
Manuscript Accepted: September 22, 2013
Published: October 14, 2013

Dawei Liang and Joana Almeida, "Solar-Pumped TEM00 Mode Nd:YAG laser," Opt. Express 21, 25107-25112 (2013)

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