title: Hybrid numerical technique combining the finite-difference beam-propagation method and the finite-difference time-domain method.
abstract: A technique combining a scalar wide-angle finite-difference beam-propagation method with a scalar finite-difference time-domain method is proposed in cylindrical coordinates. The propagating field in a lensed coreless fiber is simulated, and the effect of a lens on the far-field pattern is evaluated.
authors.forename: J
authors.initials: J
authors.lastname: Yamauchi
authors.forename: K
authors.initials: K
authors.lastname: Nishio
authors.forename: H
authors.initials: H
authors.lastname: Nakano