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Temperature and wavelength tuning of second harmonic generation in a nonlinear photonic quasi-crystal
Author(s) -
Jie Dou,
Shihao Yan,
Daozhong Zhang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.4685
Subject(s) - wavelength , materials science , optics , second harmonic generation , photonic crystal , bandwidth (computing) , energy conversion efficiency , nonlinear optics , optoelectronics , nonlinear system , photonics , nonlinear photonic crystal , harmonic , physics , photonic crystal fiber , laser , telecommunications , quantum mechanics , computer science
In the LiNbO3 nonlinear photonic crystals with a two-dimensional octagonal quasilattice, the collinear quasi-phase-matched second harmonic generation processes at multiple wavelengths were observed. The maximum conversion efficiency was 36%. Meanwhile, for the fist time we measured the change of the second harmonic conversion efficiency with the temperature and incident wavelength. The results show that the second harmonic has broader temperature and wavelength tuning bandwidth in long waveband. It is believed the study might be significant for the application of quasi-periodic nonlinear photonic crystal in practice.

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