Mid-infrared guided photoluminescence from integrated Pr3+-doped selenide ridge waveguides

Loïc Bodiou (1) , Florent Starecki (2) , Jonathan Lemaitre (1) , Virginie Nazabal (2) , Jean-Louis Doualan (1) , Emeline Baudet (2) , Radwan Chahal (2) , Aldo Gutierrez (1) , Yannick Dumeige (1) , Isabelle Hardy (1, 3) , Alain Braud (4) , Rémi Soulard (4) , Patrice Camy (4) , Petr Němec (5) , Guiseppe Palma (6) , Francesco Prudenzano (6) , Joël Charrier (1)

1 Institut FOTON - Institut des Fonctions Optiques pour les Technologies de l'informatiON
2 ISCR - Institut des Sciences Chimiques de Rennes
3 IMT Atlantique - OPT - Département Optique
4 CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique
5 Department of Graphic Arts and Photophysics [University of Pardubice]
6 Politecnico di Bari

Praseodymium-doped selenide thin films are deposited by radio frequency magnetron sputtering on thermally oxidized silicon wafers and undoped selenide layers. Ridge waveguides are then processed using photolithography and dry etching techniques. Under optical pumping at 1.55 μm, broadband guided mid-infrared photoluminescence is recorded for the first time for wavelengths above 4 μm from rare earth-doped integrated chalcogenides waveguides. Optical design confirmed that these active waveguides allow single-mode optical propagation at a wavelength of 4.70 μm.

Keywords: Rare-earth; Photoluminescence; Mid-infrared; Integrated optics; Chalcogenides

Domains: Chemical Sciences

Loïc Bodiou, Florent Starecki, Jonathan Lemaitre, Virginie Nazabal, Jean-Louis Doualan, et al.. Mid-infrared guided photoluminescence from integrated Pr3+-doped selenide ridge waveguides. Optical Materials, 2018, 75, pp.109-115. ⟨10.1016/j.optmat.2017.10.001⟩. ⟨hal-01639691⟩