Abstract

Broadband, compact in-fiber polarizers were fabricated using a pulsed ${\mathrm{CO}}_2$ laser to modify the air holes along one side of the hollow-core photonic bandgap fibers. The polarizers have lengths from 3 to $6\mathrm{mm}$ and exhibit a polarization extinction ratio of better than $20\mathrm{dB}$ over a wavelength range larger than $100\mathrm{nm}$ at approximately $1550\mathrm{nm}$.

© 2008 Optical Society of America

A hollow-core photonic bandgap fiber polarization controller

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