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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 2 — Jan. 15, 2009
  • pp: 175–177

Solar-pumped 80 W laser irradiated by a Fresnel lens

Tomomasa Ohkubo, Takashi Yabe, Kunio Yoshida, Shigeaki Uchida, Takayuki Funatsu, Behgol Bagheri, Takehiro Oishi, Kazuya Daito, Manabu Ishioka, Yuichirou Nakayama, Norihito Yasunaga, Kouichirou Kido, Yuji Sato, Choijil Baasandash, Kiyoshi Kato, Takagimi Yanagitani, and Yoshiaki Okamoto  »View Author Affiliations


Optics Letters, Vol. 34, Issue 2, pp. 175-177 (2009)
http://dx.doi.org/10.1364/OL.34.000175


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Abstract

A solar-pumped 100 W class laser that features high efficiency and low cost owing to the use of a Fresnel lens and a chromium codoped neodymium YAG ceramic laser medium was developed. A laser output of about 80 W was achieved with combination of a 4 m 2 Fresnel lens and a pumping cavity as a secondary power concentrator. This output corresponds to 4.3% of conversion efficiency from solar power into laser, and the maximum output from a unit area of Fresnel lens was 20 W m 2 , which is 2.8 times larger than previous results with mirror-type concentrator.

© 2009 Optical Society of America

OCIS Codes
(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: June 30, 2008
Revised Manuscript: October 29, 2008
Manuscript Accepted: October 29, 2008
Published: January 14, 2009

Citation
Tomomasa Ohkubo, Takashi Yabe, Kunio Yoshida, Shigeaki Uchida, Takayuki Funatsu, Behgol Bagheri, Takehiro Oishi, Kazuya Daito, Manabu Ishioka, Yuichirou Nakayama, Norihito Yasunaga, Kouichirou Kido, Yuji Sato, Choijil Baasandash, Kiyoshi Kato, Takagimi Yanagitani, and Yoshiaki Okamoto, "Solar-pumped 80 W laser irradiated by a Fresnel lens," Opt. Lett. 34, 175-177 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-2-175

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