Abstract

We report the first fabrication, to our knowledge, of polarization-rocking filters in highly birefringent elliptical microfibers. A rocking filter was made by periodically heating/twisting a microfiber with an ellipticity of $\sim 0.7$ and a diameter of $\sim 2.8\mathrm{\mu m}$ along its major axis. Strong input polarization suppression of $\sim 20\mathrm{dB}$ was achieved at a resonant wavelength of $\sim 1556.4\mathrm{nm}$ with a device length of $\sim 3\mathrm{mm}$.

© 2014 Optical Society of America

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