Tunable polarisation-maintaining filter based on liquid crystal photonic bandgap fibre

Lara Scolari, Christina Bjarnal Thulin Olausson, Johannes Weirich, Dmitry Turchinovich, Thomas Tanggaard Alkeskjold, Anders Overgaard Bjarklev, Lars Eskildsen

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    Abstract

    A tunable and polarisation-maintaining all-in-fibre filter based on a liquid crystal photonic bandgap fibre is demonstrated. Its polarisation extinction ratio reaches 14 dB at 1550 nm wavelength. Its spectral tunability range spans over 250 nm in the temperature range 30–70°C. The measured transmission spectrum is compared with that obtained through finite element simulations.
    Original languageEnglish
    JournalElectronics Letters
    Volume44
    Issue number20
    Pages (from-to)1189-1190
    ISSN0013-5194
    DOIs
    Publication statusPublished - 2008

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