Liquid-crystal tunable filter based on sapphire microspheres

被引:27
|
作者
Gilardi, Giovanni [1 ]
Donisi, Domenico [1 ]
Serpenguzel, Ali [2 ]
Beccherelli, Romeo [1 ]
机构
[1] CNR, Ist Microelettron & Microsistemi, Rome, Italy
[2] Koc Univ, Microphoton Res Lab, Dept Phys, TR-34450 Istanbul, Turkey
关键词
WAVE-GUIDE;
D O I
10.1364/OL.34.003253
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We design an integrated optoelectronic device based on the whispering-gallery modes of a sapphire microsphere integrated with a liquid-crystal tuning medium to produce a narrowband, electrically tunable, channel-dropping filter. The sapphire microsphere is glued over a diffused waveguide in a glass substrate. At the base of the microsphere, a small volume of liquid crystal is infiltrated. We numerically evaluate the performance of the device and demonstrate a voltage tuning of the narrowband resonances. (C) 2009 Optical Society of America
引用
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页码:3253 / 3255
页数:3
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