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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.4 P.601~606

http://doi.org/10.1631/jzus.A0820192


Analysis on spectral gain characteristics of PPMgLN based quasi-phase-matching optical parametric amplification


Author(s):  Hai-bin XU, Bo WU, Shuang-shuang CAI, Yong-hang SHEN

Affiliation(s):  State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   xhb.zd@163.com

Key Words:  Spectral gain full width at half maximum (FWHM), Quasi-phase matching (QPM), Optical parametric conversion, PPMgLN


Hai-bin XU, Bo WU, Shuang-shuang CAI, Yong-hang SHEN. Analysis on spectral gain characteristics of PPMgLN based quasi-phase-matching optical parametric amplification[J]. Journal of Zhejiang University Science A, 2009, 10(4): 601~606.

@article{title="Analysis on spectral gain characteristics of PPMgLN based quasi-phase-matching optical parametric amplification",
author="Hai-bin XU, Bo WU, Shuang-shuang CAI, Yong-hang SHEN",
journal="Journal of Zhejiang University Science A",
volume="10",
number="4",
pages="601~606",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0820192"
}

%0 Journal Article
%T Analysis on spectral gain characteristics of PPMgLN based quasi-phase-matching optical parametric amplification
%A Hai-bin XU
%A Bo WU
%A Shuang-shuang CAI
%A Yong-hang SHEN
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 4
%P 601~606
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820192

TY - JOUR
T1 - Analysis on spectral gain characteristics of PPMgLN based quasi-phase-matching optical parametric amplification
A1 - Hai-bin XU
A1 - Bo WU
A1 - Shuang-shuang CAI
A1 - Yong-hang SHEN
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 4
SP - 601
EP - 606
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0820192


Abstract: 
A deep understanding of the spectral gain characteristics of optical parametric oscillators (OPOs) and optical parametric amplifiers (OPAs) is important for a highly efficient optical parametric conversion. We numerically calculated the spectral gain characteristics of a quasi-phase-matching (QPM) parametric conversion process using the periodically poled 6% (mol/mol) MgO doped LiNbO3 (PPMgLN) as the nonlinear crystal. In the simulation we utilized the approach of a transformative matrix of the periodically poled nonlinear medium, which results from the small-signal approximation of three-wave mixed nonlinear equations. Numerical simulation results show that: (1) The full width at half maximum (FWHM) of the spectral gain of the parametric process becomes wider with the increase of parametric wavelength and reaches the maximum at degeneration; (2) The gain coefficient decreases gradually with the increase of parametric wavelength; (3) The spectral gain bandwidth decreases correspondingly with the increase of the nonlinear material length; (4) There exists an optimal parametric wavelength band, which is most suitable for the high gain parametric conversion when pumped by a laser source with a wide wavelength band, such as the high power fiber laser.

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