PLANAR OPTICAL WAVEGUIDE ASSEMBLY AND METHOD OF PREPARING SAME

摘要

A method of preparing a planar optical waveguide assembly, comprising the steps of: (i) applying a silicone composition to a surface of a substrate to form a silicone film; (ii) exposing at least one selected region of the silicone film to radiation having a wavelength of from 150 to 800 nm to produce a partially exposed film having at least one exposed region and at least one non-exposed region; (iii) removing the non-exposed region of the partially exposed film with a developing solvent to form a patterned film; and (iv) heating the patterned film for an amount of time sufficient to form at least one silicone core having a refractive index of from 1.3 to 1.7 at 23 °C for light having a wavelength of 589 nm; wherein the substrate has a refractive index less than the refractive index of the silicone core. A planar optical waveguide assembly prepared according to the method of the invention.