FLEXIBLE OPTICAL WAVEGUIDE, METHOD FOR MANUFACTURING SUCH FLEXIBLE OPTICAL WAVEGUIDE, AND OPTICAL MODULE

摘要

A flexible optical waveguide is manufactured by using an optical waveguide forming resin film for at least a lower clad layer or a core layer or an upper clad layer. The ten-point average roughness (Rz) of the surface of either the lower clad layer or the upper clad layer is 0.5µm or more but not more than 10µm. A method for manufacturing the flexible optical waveguide and an optical module using the flexible optical waveguide are also provided. The flexible optical waveguide having excellent adhesiveness in composition with an electric wiring board and in multilayer of the flexible optical waveguide, and the method for manufacturing the flexible optical waveguide, and the optical module using the flexible optical waveguide are provided.