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Optical Engineering

Guided-wave phase-matched second-harmonic generation in KTiOPO4 waveguide produced by swift heavy-ion irradiation
Author(s): Yazhou Cheng; Yuechen Jia; Shavkat Akhmadaliev; Shengqiang Zhou; Feng Chen
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Paper Abstract

We report on the guided-wave second-harmonic generation in a KTiOPO4 nonlinear optical waveguide fabricated by a 17  MeV O5+ ion irradiation at a fluence of 1.5×1015  ions/cm2. The waveguide guides light along both TE and TM polarizations, which is suitable for phase-matching frequency doubling. Second harmonics of green light at a wavelength of 532 nm have been generated through the KTiOPO4 waveguide platform under an optical pump of fundamental wave at 1064 nm in both continuous-wave and pulsed regimes, reaching optical conversion efficiencies of 5.36%/W and 11.5%, respectively. The propagation losses have been determined to be ∼3.1 and ∼5.7  dB/cm for the TE and TM polarizations at a wavelength of 632.8 nm, respectively.

Paper Details

Date Published: 3 November 2014
PDF: 4 pages
Opt. Eng. 53(11) 117102 doi: 10.1117/1.OE.53.11.117102
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Yazhou Cheng, Shandong Univ. (China)
Yuechen Jia, Shandong Univ. (China)
Shavkat Akhmadaliev, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Shengqiang Zhou, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Feng Chen, Shandong Univ. (China)

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