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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 10 — May. 15, 2014
  • pp: 2951–2954

Continuous-wave, double-pass second-harmonic generation with 60% efficiency in a single MgO:PPSLT crystal

Matthias Stappel, Daniel Kolbe, and Jochen Walz  »View Author Affiliations


Optics Letters, Vol. 39, Issue 10, pp. 2951-2954 (2014)
http://dx.doi.org/10.1364/OL.39.002951


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Abstract

We present a double-pass scheme for high-efficiency, high-power, second-harmonic generation (SHG) in a single MgO-doped periodically poled stoichiometric lithium tantalate (MgO:PPSLT) crystal. The device is pumped by a single-frequency, continuous-wave fiber amplifier laser system at a wavelength of 1091 nm. For the double-pass scheme, a conversion efficiency of 60% and a harmonic power of 12.8 W at a wavelength of 545.5 nm with a high beam quality of (M2<1.2) is achieved. Compared to single-pass SHG, a double-pass enhancement factor of more than two is observed at the highest fundamental pump power.

© 2014 Optical Society of America

OCIS Codes
(140.7300) Lasers and laser optics : Visible lasers
(190.4360) Nonlinear optics : Nonlinear optics, devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 12, 2014
Revised Manuscript: April 8, 2014
Manuscript Accepted: April 14, 2014
Published: May 12, 2014

Citation
Matthias Stappel, Daniel Kolbe, and Jochen Walz, "Continuous-wave, double-pass second-harmonic generation with 60% efficiency in a single MgO:PPSLT crystal," Opt. Lett. 39, 2951-2954 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-10-2951


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