Abstract
Changes in the refractive index of amorphous chalcogenide films upon ultraviolet (UV) exposure and annealing at different temperatures are investigated in detail, indicating an index contrast of the order of in the channel waveguide. An channel waveguide is fabricated using UV well irradiation and then annealing near the glass transition temperature and shows a low propagation loss of and good propagation characterization at the guided mode.
© 2009 Optical Society of America
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