Periodically poled lithium niobate whispering gallery mode microcavities on a chip

被引：42

作者：

Hao, ZhenZhong ^{[1
,2
]}

Zhang, Li ^{[1
,2
]}

Gao, Ang ^{[1
,2
]}

Mao, WenBo ^{[1
,2
]}

Lyu, XiaoDan ^{[1
,2
]}

Gao, XiaoMei ^{[1
,2
]}

Bo, Fang ^{[1
,2
,3
]}

Gao, Feng ^{[1
,2
]}

Zhang, GuoQuan ^{[1
,2
,3
]}

Xu, JingJun ^{[1
,2
,3
]}

机构：

[1] Nankai Univ, TEDA Inst Appl Phys, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300457, Peoples R China

[2] Nankai Univ, Sch Phys, Tianjin 300457, Peoples R China

[3] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China

来源：

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2018年 / 61卷 / 11期

基金：

中国国家自然科学基金;

关键词：

whispering gallery mode; periodically poled lithium niobate; microcavities; second harmonic generation; TUNABLE MICRORING RESONATORS; MICRODISK RESONATORS; MICRORESONATOR; GENERATION;

D O I：

10.1007/s11433-018-9241-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this study, we investigate the fabrication of periodically poled lithium niobate (PPLN) microdisk cavities on a chip. These resonators are fabricated from a PPLN film with a 16 mu m poling period on insulator using conventional microfabrication techniques. The quality factor of the PPLN microdisk resonators with a 40-mu m radius and a 700-nm thickness is 6.7x10(5). Second harmonic generation (SHG) with an efficiency of 2.2x10(-6) mW(-1) is demonstrated in the fabricated PPLN microdisks. The nonlinear conversion efficiency could be considerably enhanced by optimizing the period and pattern of the poled structure and by improving the cavity quality factors.

引用

页数：5

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