Article Dans Une Revue Optics Express Année : 2014

Large-mode-area infrared guiding in ultrafast laser written waveguides in Sulfur-based chalcogenide glasses

Ciro d'Amico
Cyril Mauclair
Razvan Stoian

Résumé

Current demands in astrophotonics impose advancing optical functions in infrared domains within embedded refractive index designs. We demonstrate concepts for large-mode-area guiding in ultrafast laser photowritten waveguides in bulk Sulfur-based chalcogenide glasses. If positive index contrasts are weak in As2S3, Ge doping increases the matrix rigidity and allows for high contrast (10−3) positive refractive index changes. Guiding with variable mode diameter and large-mode-area light transport is demonstrated up to 10μm spectral domain using transverse slit-shaped and evanescently-coupled multicore traces.

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ujm-00997831 , version 1 (22-12-2023)

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Ciro d'Amico, Guanghua Cheng, Cyril Mauclair, Johann Troles, Laurent Calvez, et al.. Large-mode-area infrared guiding in ultrafast laser written waveguides in Sulfur-based chalcogenide glasses. Optics Express, 2014, 22, pp.13091. ⟨10.1364/OE.22.013091⟩. ⟨ujm-00997831⟩
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