title: Coupling of spatially partially coherent beams into planar waveguides.
abstract: The second-order coherence theory of partially spatially coherent light and the overlap integral method are applied to study the end-coupling of stationary multimode light beams into planar waveguides. A method is presented for the determination of the cross-spectral density function of the guided field. Examples are given on the effects of spatial coherence, lateral shift, angular tilt, and defocusing of the incident beam on the coupling efficiency, spatial coherence, and propagation characteristics of the guided field.
authors.forename: Henri
authors.initials: H
authors.lastname: Partanen
authors.forename: Jani
authors.initials: J
authors.lastname: Tervo
authors.forename: Jari
authors.initials: J
authors.lastname: Turunen