Article ID Journal Published Year Pages File Type
1540747 Optics Communications 2008 6 Pages PDF
Abstract

We propose and study, using the variational approximation as well as numerical simulation, the evolution of a probe beam through a directional coupler formed in a photopolymer system. Both the results compare well. An analytical expression is derived for describing the dynamics of the coupler. The expression compares well with that of the standard linear coupler. The two waveguides are self-written in the photopolymerizable material as a result of the competition between diffraction and refractive index change due to photopolymerization. As a result the writing beam can be self-trapped along the propagation direction.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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