Spectral tuning of a locally bent microfiber taper interferometer with a nanosized liquid crystal overlay.
Spectral tuning of a locally bent microfiber taper interferometer with a nanosized liquid crystal overlay.
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DOI：
10.1364/ao.55.007393
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发表时间：
2016-09
期刊：
影响因子：
1.9
通讯作者：
Haimei Luo;Changjing Wang;Y. Ji;W. Yuan;Guoping Zhang;Yifan Wang;Zehua Hong;Xian-ping Wang
中科院分区：
文献类型：
--
作者：
Haimei Luo;Changjing Wang;Y. Ji;W. Yuan;Guoping Zhang;Yifan Wang;Zehua Hong;Xian-ping Wang
在本文中，在不同的和电场强度下，在理论上分析了局部微纤维锥形胶带，覆盖有纳米化的高反射式液晶（LC）层（LC）层。使用火焰刷技术制造腰围约3.72μm，然后弯曲锥度的过渡区以形成模态干涉仪，后来在均匀的胶带腰部上放置约200 nm的LC层。该设备是可调的全纤维光子设备，例如过滤器，调制器和传感元素。
In this paper, the tuning characteristics of locally bent microfiber taper covered with a nanosized high-refractive-index liquid crystal (LC) layer under different temperatures and electric field intensities have been theoretically analyzed and experimentally investigated. A locally bent microfiber taper interferometer with a waist diameter of ∼3.72 μm is fabricated by using the flame brushing technique, followed by bending the transition region of the taper to form a modal interferometer and later by placing a ∼200 nm LC layer over the uniform taper waist region. Experimental results indicate that a high-efficiency thermal or electric tuning of an LC-coated locally bent microfiber taper interferometer could be achieved. This suggests a potential application of this device as tunable all-fiber photonic devices, such as filters, modulators, and sensing elements.