The basic principle of quasi-phase-matching (QPM) of DFG is depicted, the temperature tuning characteristics of periodically poled LiNbO3(PPLN) are studied based on the Sellmeier equation for the extraordinary refraction index.
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研究了基于准相位匹配技术的差频产生基本原理和PPLN晶体的温度调谐特性;
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