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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 21 — Jul. 20, 2013
  • pp: 5123–5132

Multi-Fresnel lenses pumping approach for improving high-power Nd:YAG solar laser beam quality

Dawei Liang and Joana Almeida  »View Author Affiliations


Applied Optics, Vol. 52, Issue 21, pp. 5123-5132 (2013)
http://dx.doi.org/10.1364/AO.52.005123


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Abstract

To significantly improve the present-day high-power solar laser beam quality, a three-stage multi-Fresnel lenses approach is proposed for side-pumping either a Nd:YAG single-crystal or a core-doped Sm3+Nd:YAG ceramic rod. Optimum pumping and laser beam parameters are found through ZEMAX and LASCAD numerical analysis. The proposed scheme offers a uniform absorption profile along the rod. 167 W laser power can be achieved, corresponding to 29.3W/m2 collection efficiency. High brightness figure of merit of 8.34 W is expected for the core-doped rod within a convex–concave resonator, which is 1300 times higher than that of the most-recent high-power solar laser.

© 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
(140.3580) Lasers and laser optics : Lasers, solid-state
(350.6050) Other areas of optics : Solar energy

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 9, 2013
Revised Manuscript: June 3, 2013
Manuscript Accepted: June 12, 2013
Published: July 15, 2013

Citation
Dawei Liang and Joana Almeida, "Multi-Fresnel lenses pumping approach for improving high-power Nd:YAG solar laser beam quality," Appl. Opt. 52, 5123-5132 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-21-5123

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