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

Abstract : 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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Journal articles
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https://hal-ujm.archives-ouvertes.fr/ujm-00997831
Contributor : Razvan Stoian <>
Submitted on : Wednesday, May 28, 2014 - 10:17:19 PM
Last modification on : Tuesday, September 17, 2019 - 2:48:04 PM

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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, Optical Society of America, 2014, 22, pp.13091. ⟨10.1364/OE.22.013091⟩. ⟨ujm-00997831⟩

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