Oscillatory thermal dynamics in high-Q PDMS-coated silica toroidal microresonators

被引：78

作者：

He, Lina ^{[1
]}

Xiao, Yun-Feng ^{[1
,2
]}

Zhu, Jiangang ^{[1
]}

Ozdemir, Sahin Kaya ^{[1
]}

Lan Yang ^{[1
]}

机构：

[1] Washington Univ, Dept Elect & Syst Engn, St Louis, MO 63130 USA

[2] Peking Univ, State Key Lab Artificial Microstruct & Mesoscop P, Sch Phys, Beijing 100871, Peoples R China

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 12期

关键词：

WHISPERING-GALLERY MODES; MICROSPHERE RESONATORS; OPTICAL MICROCAVITIES; LABEL-FREE; TEMPERATURE; LAYER;

D O I：

10.1364/OE.17.009571

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the oscillatory thermal dynamics of a high-Q PDMS-coated silica microtoroid both experimentally and theoretically. We demonstrate that the competing thermo-optic effects in silica and PDMS lead to thermally-induced self-modulation in the transmission spectra. A dynamical model is built using thermal dynamics and coupled-mode theory to analyze the oscillation behaviors. Effects of input power, taper-cavity air gap and wavelength scanning speed on the oscillation behaviors are investigated with a detailed comparison between theory and experiments. (C) 2009 Optical Society of America

引用

页码：9571 / 9581

页数：11

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