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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 4 — Feb. 24, 2014
  • pp: 4267–4276

Temperature-insensitive frequency tripling for generating high-average power UV lasers

Haizhe Zhong, Peng Yuan, Shuangchun Wen, and Liejia Qian  »View Author Affiliations


Optics Express, Vol. 22, Issue 4, pp. 4267-4276 (2014)
http://dx.doi.org/10.1364/OE.22.004267


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Abstract

Aimed for generating high-average power ultraviolet (UV) lasers via third-harmonic generation (THG) consisting of frequency doubling and tripling stages, we numerically and experimentally demonstrate a novel frequency tripling scheme capable of supporting temperature-insensitive phase-matching (PM). Two cascaded tripling crystals, with opposite signs of the temperature derivation of phase-mismatch, are proposed and theoretically studied for improving the temperature-acceptance of PM. The proof-of-principle tripling experiment using two crystals of LBO and BBO shows that the temperature acceptance can be ~1.5 times larger than that of using a single tripling crystal. In addition, the phase shift caused by air dispersion, along with its influence on the temperature-insensitive PM, are also discussed. To illustrate the potential applications of proposed two-crystal tripling design in the high-average-power regime, full numerical simulations for the tripling process, are implemented based on the realistic crystals. The demonstrated two-crystal tripling scheme may provide a promising route to high-average-power THG in the UV region.

© 2014 Optical Society of America

OCIS Codes
(140.6810) Lasers and laser optics : Thermal effects
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 21, 2013
Revised Manuscript: December 27, 2013
Manuscript Accepted: December 31, 2013
Published: February 18, 2014

Citation
Haizhe Zhong, Peng Yuan, Shuangchun Wen, and Liejia Qian, "Temperature-insensitive frequency tripling for generating high-average power UV lasers," Opt. Express 22, 4267-4276 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-4-4267


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