Propagation in air by field superposition of scattered light within a Fresnel fiber

Opt Lett. 2003 Feb 15;28(4):230-2. doi: 10.1364/ol.28.000230.

Abstract

Propagation of light at 1.5 microm with peak intensity in an air hole is achieved within an air-silica-structured Fresnel waveguide. Thus a simpler fiber design alternative to photonic crystal fibers is possible for high-peak-power propagation with reduced nonlinear interactions. Multiple foci are observed in the far field.