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Polarization coupling in a highly birefringent photonic crystal fiber by torsional acoustic wave
We demonstrate and analyze the acousto-optic coupling between two optical polarization modes of the LP 01 mode propagating in a highly birefringent photonic crystal fiber. The coupling is realized based on wavelength selective acousto-optic coupling by traveling torsional acoustic wave in an all-fiber tunable polarization filter configuration. The dispersion properties of the torsional acoustic wave in the photonic crystal fiber and the influence of axial non-uniformity in the modaldoi:10.1364/oe.16.004631 pmid:18542561 fatcat:al776kwe4vadbprn3jhlloccza