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

Ciro d'Amico; Guanghua Cheng; Cyril Mauclair; Johann Troles; Laurent Calvez; Virginie Nazabal; Celine Caillaud; Guillermo Martin; Brahim Arezki; Etienne Lecoarer; Pierre Kern; Razvan Stoian

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

Ciro d'Amico ¹ Guanghua Cheng ^{1, 2} Cyril Mauclair ¹ Johann Troles ³ Laurent Calvez ³ Virginie Nazabal ³ Celine Caillaud ³ Guillermo Martin ⁴ Brahim Arezki ⁴ Etienne Lecoarer ⁴ Pierre Kern ⁴ Razvan Stoian ¹

1 LHC - Laboratoire Hubert Curien [Saint Etienne]

2 XIOPM - State Key Laboratory of Transient Optics and Photonics

3 ISCR - Institut des Sciences Chimiques de Rennes

4 LAOG - Laboratoire d'Astrophysique de Grenoble

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.

Keywords : 3D photonics refractive index changes chalcogenide glass ultrafast laser fabrication

Document type :

Journal articles

Domain :

Engineering Sciences [physics] / Optics / Photonic

Complete list of metadatas

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

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

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

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