Abstract
Chalcogenide glasses are materials of interest for optical devices in the IR region. Of the As-based glasses, the As x S 1− x has received most of the attention, with a variety of processes and devices being studied and demonstrated. In the present work we explored the use of readily available 800-nm laser sources for fabricating surface gratings in As x Se 1− x glass. We demonstrate for the first time, to the best of our knowledge, surface relief gratings written using continuous-wave 800-nm laser light in AsSe. Such structures can be enhanced to enable short-period reflectors in AsSe-based waveguide and fiber devices.
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