Electrically and mechanically induced long period gratings in liquid crystal photonic bandgap fibers

被引：78

作者：

Noordegraaf, Danny ^{[1
]}

Scolari, Lara ^{[1
]}

Laegsgaard, Jesper ^{[1
]}

Rindorf, Lars ^{[1
]}

Alkeskjold, Thomas Tanggaard ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Commun Opt & Mat, DK-2800 Lyngby, Denmark

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 13期

关键词：

D O I：

10.1364/OE.15.007901

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate electrically and mechanically induced long period gratings (LPGs) in a photonic crystal fiber (PCF) filled with a high-index liquid crystal. The presence of the liquid crystal changes the guiding properties of the fiber from an index guiding fiber to a photonic bandgap guiding fiber - a so called liquid crystal photonic bandgap (LCPBG) fiber. Both the strength and resonance wavelength of the gratings are highly tunable. By adjusting the amplitude of the applied electric field, the grating strength can be tuned and by changing the temperature, the resonance wavelength can be tuned as well. Numerical calculations of the higher order modes of the fiber cladding are presented, allowing the resonance wavelengths to be calculated. A high polarization dependent loss of the induced gratings is also observed. (C) 2007 Optical Society of America

引用

页码：7901 / 7912

页数：12

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