Tm3+ doped Ga–As–S chalcogenide glasses and fibers

• DOI: 10.1016/j.optmat.2015.06.032
• Publication Date: 2015-06-19T15:35:09Z
• Authors: A. Galstyan; S.H. Messaddeq; V. Fortin; I. Skripachev; R. Vallée; T. Galstian; Y. Messaddeq
• Keywords: Thulium; Chalcogenide glass

Abstract Tm3+ doped Ga–As–S chalcogenide glass samples were produced using As2S3 pure glass as starting materials. Their photoluminescence properties were characterized and strong emission bands were observed at 1.2 μm (1H5 → 3H6), 1.4 μm (3H4 → 3F4) and 1.8 μm (3F4 → 3H6) under excitation wavelengths of 698 nm and 800 nm. The thulium and gallium concentrations were optimized to achieve the highest photoluminescence efficiency. From the optimal composition, a Tm3+ doped Ga–As–S fiber was drawn and its optical properties were studied.