PRODUCTION OF WAVEGUIDES

摘要

A planar waveguide (1) comprises a guiding layer (4) with densified cores (4, 5) for propagation of radiation. The cores (4, 5) are formed by selectively exposing the guiding layer (4) to UV at 222nm with an intensity of 75 mW/cm<2> at the surface. The guiding layer material comprises components in the methacrylate functional group. There is no need for use of photo-initiator additives in the guiding layer material.