Realization of an optical filter using POLICRYPS holographic gratings on glass waveguides

In this paper an optical filter is presented using a hybrid fabrication approach. The filter is made of a glass channel single mode optical waveguide covered by a POLICRYPS holographic grating. The fabrication process of the device is described and preliminary optical characterization is presented. The optical response of the filter is reported showing the capability of the device to filter wavelengths typically used in optical communication systems.