Noncritical phasematching behavior in thin-film lithium niobate frequency converters

被引：12
作者：
Kuo, Paulina S. [1 ]
机构：
[1] NIST, Informat Technol Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA
来源：
OPTICS LETTERS | 2022年 / 47卷 / 01期
关键词：
EFFICIENT 2ND-HARMONIC GENERATION; WAVE-GUIDES; CONVERSION;
D O I：
10.1364/OL.444846
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a study of noncritical phasematching behavior in thin-film, periodically poled lithium niobate (PPLN) waveguides. Noncritical phasematching refers to designing waveguides so that the phasematching is insensitive to variations inwaveguide thickness, width, or other parameters. For waveguide thickness (the dimension with greatest nonuniformity due to fabrication), we found that phasematching sensitivity can be minimized but not eliminated. We estimate limits on the acceptable thickness variation and discuss scaling with device length for second-harmonic generation and sum-frequency generation in thin-film PPLN frequency converters.
引用
收藏
页码：54 / 57
页数：4
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