Integrated optical beam splitter mfr. using film waveguide - marking boundary surface with load film of low attenuation and suitable shape, thickness and refractive index

摘要

The film waveguide integrated optical beam divider is made with a boundary surface of different film configurations and corresp. effective refractive indices. The boundary surface is marked by a load film of low attenuation material of suitable geometric shape, thickness and refractive index and with a beam division characteristic defined by the effective refractive indices. The beam propagation angle is variable by selecting the shape of the load film. ADVANTAGE - Enables effective refractive index to be increased and any incident angle to be used.