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

来源：

OPTICS LETTERS | 2009年 / 34卷 / 21期

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

页码：3253 / 3255

页数：3

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