Shape control of Self-Written Waveguide

Recently, drastic increase of information flow has become a serious problem in information and communication technology, because of a data transmission rate limit in metallic wiring. To solve this problem, we have paid a special interest to optical interconnection by SWW (self-written waveguide). We studied about a mutual relationship between the SWW shape and fabrication parameters, such as the laser irradiation power and the optical mode. We examined the SWW by simulation using the ray tracing method. Experimentally we fabricated SWWs under several beam divergence angles. From these results we confirmed that it seems possible to control the SWW shape with specific parameters.