Frequency tunability of solid-core photonic crystal fibers filled with nanoparticle-doped liquid crystals

Lara Scolari, Sebastian Gauza, Haiqing Xianyu, Lei Zhai, Lars Eskildsen, Thomas Tanggaard Alkeskjold, Shin-Tson Wu, Anders Overgaard Bjarklev

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Abstract

We infiltrate liquid crystals doped with BaTiO3 nanoparticles in a photonic crystal fiber and compare the measured transmission spectrum with the one achieved without dopant. New interesting features, such as frequency modulation response of the device and a transmission spectrum with tunable attenuation on the short wavelength side of the widest bandgap, suggest a potential application of this device as a tunable all-in-fiber gain equalization filter with an adjustable slope. The tunability of the device is achieved by varying the amplitude and the frequency of the applied external electric field. The threshold voltage for doped and undoped liquid crystals in a silica capillary and in a glass cell are also measured as a function of the frequency of the external electric field and the achieved results are compared.
Original languageEnglish
JournalOptics Express
Volume17
Issue number5
Pages (from-to)3754-3764
ISSN1094-4087
DOIs
Publication statusPublished - 2009

Cite this

Scolari, L., Gauza, S., Xianyu, H., Zhai, L., Eskildsen, L., Alkeskjold, T. T., Wu, S-T., & Bjarklev, A. O. (2009). Frequency tunability of solid-core photonic crystal fibers filled with nanoparticle-doped liquid crystals. Optics Express, 17(5), 3754-3764. https://doi.org/10.1364/OE.17.003754