title: Coherent acousto-optic mode coupling in dispersion-compensating fiber by two acoustic gratings with orthogonal vibration directions.
abstract: The acousto-optic mode coupling from core to LP11(cl) mode of a dispersion-compensating fiber excited by two acoustic waves with orthogonal perturbations is studied by use of a novel composite piezoelectric transducer. Highly polarization-dependent mode-selective spectra are observed that are due to coherent acousto-optic coupling between the core and various constituent cladding modes. Potential applications for implementing an all-fiber wavelength-tunable polarization analyzer are also discussed.
authors.affiliation: Department of Electrical Engineering and Computer Science, Henry Samueli School of Engineering, University of California, Irvine, Irvine, California 92697, USA.
authors.forename: P Z
authors.initials: PZ
authors.lastname: Dashti
authors.forename: Q
authors.initials: Q
authors.lastname: Li
authors.forename: C H
authors.initials: CH
authors.lastname: Lin
authors.forename: H P
authors.initials: HP
authors.lastname: Lee