Nd3+-doped TeO2–PbF2–AlF3 glasses for laser applications

• Published in: Optical materials Vol. 51; pp. 35 - 41
• Main Authors: Lalla, E.A., Rodríguez-Mendoza, U.R., Lozano-Gorrín, A.D., Sanz-Arranz, A., Rull, F., Lavín, V.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2016
• Subjects: Emission and absorption cross-sections; Fluorotellurite glasses; Judd–Ofelt analysis; Laser hosts; Nd3+ ions; Fluorotellurite glasses; Judd–Ofelt analysis; Emission and absorption cross-sections; Laser hosts; Nd3+ ions
• ISSN: 0925-3467; 1873-1252
• DOI: 10.1016/j.optmat.2015.11.010

Absorption and spontaneous emission cross-sections of the 4F3/2→4I11/2 transition for the TeNd25 glass. [Display omitted] •The Nd3+-doped TeO2–PbF2–AlF3 glass is candidate for 1.06μm laser applications.•The Ωλ parameters are obtained applying the Judd–Ofelt theory.•The χ, the η, σabs(λ) and σem(λ) parameters were obtained for the 4F3/2→4I11/2 transition. A study of the optical properties of Nd3+ ion in TeO2–PbF2–AlF3 glasses has been carried out for different Nd3+ concentrations. Based on the Judd–Ofelt theory, intensity parameters and radiative properties were determined from the absorption spectra. Focusing on the suitability of this host for laser applications, the spectroscopic quality factor χ was obtained with a value of 1.07, a value of the order of other compositions proposed as laser hosts. For the most intense emission corresponding with the 4F3/2→4I11/2 transition (1.06μm), the absorption and emission and have been calculated with values of 1.20×10−20cm2, 2.08×10−20cm2. A positive value for the gain cross-sections has been found for a population inversion factor γ of 0.4 in the spectral range from 1060 to 1110nm. All these results suggest the potentially use of this system as a laser host.