Glass forming ability and enhanced 2.7μm emission of erbium ions in TeO2 doped fluoroaluminate glass

Study of Mid-Infrared Emission and Structural Properties of Heavy Metal Oxide Glass and Optical Fibre Co-Doped with Ho3+/Yb3+ Ions

“…The spectral transmittance in the mid-IR region of most common optical glasses based on oxides such as phosphate (1200 cm −1 ), silicate (1100 cm −1 ), or borate (1400 cm −1 ) is limited due to their high maximum phonon energies [5,6]. On the other hand, non-oxide glasses with low phonon energy and high transparency in mid-IR are characterized by poor thermal stability which complicates processing them into photonic structures [7,8,9,10,11]. Thus, glasses based on heavy metal oxides (HMO) are still investigated in optical material laboratories around the world [12,13,14].…”