首页|Efficient second and third harmonic generation in dual-layer lithium niobate microdisk resonator

Efficient second and third harmonic generation in dual-layer lithium niobate microdisk resonator

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Lithium niobate thin film frequency doubler has extensive applications in the preparation of classical and quantum sources.In this study,we successfully fabricated microdisk resonators with a quality factor of 2.2x105 in reverse-polarization dual-layer x-cut lithium niobate for the first time.Based on the modal phase matching condition,efficient second harmonic generation with a record normalized conversion efficiency of～56000％W-1 and cascaded third harmonic generation with an efficiency of～6500％W-2 were obtained in the microdisk resonator.Compared with the periodically poled lithium niobate microcavity,the complex domain structure preparation processes are avoided.Our work provides a scheme for achieving highly efficient second-order nonlinear effects in non-periodically poled microcavities.

lithium niobatemodal phase matchingharmonic generation

Zhenzhong Hao、Xiao Wu、Qiang Luo、Zhang Li、Rui Ma、Fang Bo、Feng Gao、Guoquan Zhang、Jingjun Xu

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MOE Key Laboratory of Weak-Light Nonlinear Photonics,TEDA Institute of Applied Physics and School of Physics,Nankai University,Tianjin 300457,China

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China111 Project

2019YFA070500012034010121340071173400992050111120741999205011412004197B23045

2024

10.1007/s11433-023-2322-2

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
年,卷(期)：2024.67(5)