0000000001100731
AUTHOR
F. Smektala
Solid core microstructured optical fibers from chalcogenide glasses for photonic applications
International audience
Reef-knot microfiber resonators
International audience
Ultra Highly Nonlinear AsSe Chalcogenide Holey Fiber for Nonlinear Applications
oral session 10.1: " Glasses for Nonlinear Processes and Amplification "; International audience; We report the characterizations of an AsSe chalcogenide holey fiber including loss, dispersion, effective area and nonlinear coefficient. The fiber exhibits a record Kerr nonlinearity of 15000 W-1km-1, which allows great potential for nonlinear applications.
A Brillouin fiber laser at 2 µm based on a step-index tellurite (TeO2) optical fiber
International audience; We demonstrate Brillouin lasing at 2-µm using a step-index Tellurite-glass optical fiber in a passive fiber ring cavity. A low lasing threshold of 70 mW was achieved with a Brillouin gain of 1.05 × 10-10 m/W for a Brillouin frequency shift of 6.165 GHz. Stimulated Brillouin scattering (SBS) in optical fibers is a nonlinear process with important applications such as distributed optical fiber sensing, microwave photonics, optical storage, and fiber lasers. The latter application has attracted significant interest as highly coherent laser sources with sub-Hz linewidth can be achieved using SBS in optical cavities. To date, most of Brillouin fibers lasers (BFLs) have be…
Chalcogenide glass-ceramics for second harmonic generation
International audience; Permanent second harmonic generation (SHG) in chalcogenide based glass-ceramics containing highly nonlinear micro-crystals (crystalline particle size≈2-4 μm) has been demonstrated. In order to investigate whether a controlled crystallisation is an efficient way for improving the SH temporal stability and SH signal intensity of chalcogenide glasses, the Ge23Sb12S65 composition was chosen for its stability against crystallisation and atmospheric corrosion. Different amounts of metallic cadmium were introduced to promote CdS crystallite formation. Glass-ceramics with volume crystallisation were obtained by heat treating the glass samples at different temperatures from 3…
Infrared Photonic Crystal Fibers from chalcogenide glasses for non linear optical applications
International audience