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arXiv · 1112.2546

Three-dimensional mid-infrared photonic circuits in chalcogenide glass

Airan Rodenas·Guillermo Martin·Brahim Arezki·Nicholas D. Psaila·Gin Jose·Animesh Jha·Lucas Labadie·Piern Kern·Ajoy K. Kar·Robert R. Thomson
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Abstract

We report the fabrication of single mode buried channel waveguides for the whole mid-infrared transparency range of chalcogenide sulphide glasses by means of direct laser writing. We have explored the potential of this technology by fabricating a prototype three-dimensional three-beam combiner for future application in stellar interferometry, which delivers a monochromatic interference visibility of 99.89% at 10.6 \mum, and an ultrahigh bandwidth (3-11 \mum) interference visibility of 21.3%. These results demonstrate that it is possible to harness the whole transparency range offered by chalcogenide glasses on a single on-chip instrument by means of direct laser writing, a finding that may be of key significance in future technologies such as astrophotonics and biochemical sensing.

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Airan Rodenas, Guillermo Martin, Brahim Arezki, Nicholas D. Psaila, Gin Jose, Animesh Jha, Lucas Labadie, Piern Kern, Ajoy K. Kar, Robert R. Thomson. 2011-12-12. Three-dimensional mid-infrared photonic circuits in chalcogenide glass. https://doi.org/10.1364/ol.37.000392

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