Greater than one billion Q factor for on-chip microresonators

被引：62

作者：

Wu, Lue ^{[1
]}

Wang, Heming ^{[1
]}

Yang, Qifan ^{[1
]}

Ji, Qing-xin ^{[1
,2
]}

Shen, Boqiang ^{[1
]}

Bao, Chengying ^{[1
]}

Gao, Maodong ^{[1
]}

Vahala, Kerry ^{[1
]}

机构：

[1] CALTECH, TJ Watson Lab Appl Phys, Pasadena, CA 91125 USA

[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

来源：

OPTICS LETTERS | 2020年 / 45卷 / 18期

关键词：

LASER;

D O I：

10.1364/OL.394940

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High optical quality (Q) factors are critically important in optical microcavities, where performance in applications spanning nonlinear optics to cavity quantum electrodynamics is determined. Here, a record Q factor of over 1.1 billion is demonstrated for on-chip optical resonators. Using silica whispering-gallery resonators on silicon, Q-factor data is measured over wavelengths spanning the C/L bands (100 nm) and for a range of resonator sizes and mode families. A record low sub-milliwatt parametric oscillation threshold is also measured in 9 GHz free-spectral-range devices. The results show the potential for thermal silica on silicon as a resonator material. (C) 2020 Optical Society of America

引用

页码：5129 / 5131

页数：3

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