Dispersion compensation in whispering-gallery modes

被引:58
|
作者
Ilchenko, VS [1 ]
Savchenkov, AA [1 ]
Matsko, AB [1 ]
Maleki, L [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
关键词
D O I
10.1364/JOSAA.20.000157
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We show that manipulation by a spatial profile of the refractive index of a circularly symmetric dielectric cavity results in a novel way of fine tuning frequency separations as well as spatial localizations of high-Q whispering-gallery modes excited in the cavity. The method permits dispersion compensation in the modes (spectrum equalization), diminishes the quality-factor limitation by surface roughness and contamination, and allows critical coupling to ultra-high-Q modes without maintaining an air gap with evanescent couplers. (C) 2003 Optical Society of America.
引用
收藏
页码:157 / 162
页数:6
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