Tunable and rotatable polarization controller using photonic crystal fiber filled with liquid crystal

摘要

We design and fabricate a compact tunable and rotatable polarization controller using liquid crystalnphotonic band gap fibers. The electrically and thermally induced phase shift in the Poincaré spherenand corresponding birefringence change are measured. The direction of the electric field is managednby connecting four electrodes in different electrode configurations, and the thermal tunability isncontrolled by on-chip heaters. According to the results, a quarter-wave plate and a half-wave platenworking in the wavelength range of 1520–1600 nm are experimentally demonstrated. © 2010nAmerican Institute of Physics. u0004doi:10.1063/1.3455105