Quasi-phase-matched difference frequency generation devices with annealed/proton-exchanged LiNbO3 waveguides buried by reverse proton exchange

被引：15
作者：
Fujimura, M [1 ]
Murayama, T [1 ]
Suhura, T [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn, Dept Elect Engn, Suita, Osaka 5650871, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2004年 / 43卷 / 12A期
关键词：
lithium niobate; quasi-phase matching; difference frequency generation; wavelength conversion; buried waveguides; nonlinear optics; proton exchange;
D O I：
10.1143/JJAP.43.L1543
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Annealed/proton-exchanged LiNbO3 waveguides buried by reserve proton exchange were studies and applied to quasi-phase-matched difference frequency generation (DFG) devices to improve their efficiency. A device of 3.1 cm lenght was fabricated and characterized. In preliminary second harmonic generation experiments, four-fold improvement in the normalized efficiency was demonstrated. In DFG wavelenght conversion experiments, conversion efficiency of - 9 dB for pump power of 12 mW was achieved. The corresponding normalized DFG efficiency was 1000%/W, which is, to the best of the authors' knowledge, the highest value ever reported.
引用
收藏
页码：L1543 / L1545
页数：3
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