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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 2 — Jan. 15, 2010
  • pp: 160–162

Upconversion blue laser by intracavity frequency self-doubling of periodically poled lithium tantalate parametric oscillator

C.-M. Lai, I.-N. Hu, Y.-Y. Lai, Z.-X. Huang, L.-H. Peng, A. Boudrioua, and A.-H. Kung  »View Author Affiliations


Optics Letters, Vol. 35, Issue 2, pp. 160-162 (2010)
http://dx.doi.org/10.1364/OL.35.000160


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Abstract

We report a design for upconversion 435 nm blue lasers based on simultaneously fulfilling the nonlinear processes of optical parametric oscillation (OPO) and second-harmonic generation (SHG) in a 7.9 μ m periodically poled lithium tantalate (PPLT). The uncoated 15 - mm -long PPLT device exhibits a low threshold of 150 mW and a differential slope efficiency of 22.6%, rendering 56 mW blue generation when pumped by a pulsed 532 nm green laser with an average power rating of 400 mW . These observations were attributed to a quasi-phase-matching (QPM) structural design with a 75% domain duty cycle to ensure the concurrence of frequency doubling with the first-order QPM-OPO PPLT device via the second-order QPM-SHG process.

© 2010 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.7220) Nonlinear optics : Upconversion
(230.7405) Optical devices : Wavelength conversion devices

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 2, 2009
Revised Manuscript: November 6, 2009
Manuscript Accepted: November 27, 2009
Published: January 13, 2010

Citation
C.-M. Lai, I.-N. Hu, Y.-Y. Lai, Z.-X. Huang, L.-H. Peng, A. Boudrioua, and A.-H. Kung, "Upconversion blue laser by intracavity frequency self-doubling of periodically poled lithium tantalate parametric oscillator," Opt. Lett. 35, 160-162 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-2-160

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