Abstract

We demonstrate an electrically tunable Sagnac filter based on a photonic bandgap fiber that is realized by infusing liquid crystal into a solid-core air-hole photonic crystal fiber. The filter enables an electrical tuning with a range of about 26nm for one single interference minimum in the transmission bandgap from 1330to1650nm wavelength. The tuning efficiency is averaged to 0.53nmV.

© 2008 Optical Society of America

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