[11p-S223-1~16] 13.8 Optical properties and light-emitting devices

[11p-S223-7] Investigation of Bi₂O₃ thin films as host of emission-active Er³⁺ ions

〇Housei Akazawa¹ (1.NTT Device Innovation Center)

Keywords:Bi2O3, Er3+, photoluminescence

EDFA is a key device in optical telecommunication technologies. Its advanced style will be EDFA sections incorporated in a waveguide-based photo circuit. We now propose Bi₂O₃ as a new host material that can exhibit better perforomance than SiO₂. We investigated sputter deposition of Bi₂O₃ thin films on Si substrate and established conditions at which satisfactory properties are achieved. By doping Er³⁺ ions, we observed infrared emissions from Er³⁺.