Characterization and comparison of 1% at Yb-doped Lu2O3 and Sc2O3 ceramics as laser gain media
Authors: Pirri A., Toci G., Vannini M.
Autors Affiliation: Istituto di Fisica Applicata Nello Carrara, Consiglio Nazionale Delle Ricerche, IFAC-CNR, Via Madonna del Piano 10 C, I-50019 Sesto Fiorentino, Firenze, Italy
Abstract: We present the first laser oscillation achieved on Yb-doped Sc2O3 and Lu2O3 ceramics with a level of doping as low as 1 at %, under quasi-continuous wave pumping at 968 nm. Ceramic samples reached comparable performances in terms of tunability ranges, which exceeds 41 nm, and laser output powers. In particular, with the former sample emitting at 1040.5 nm we measured a maximum output power of 2.2 W with a corresponding slope efficiency of eta = 59%. The latter medium delivered 1.8 W with a slope of eta = 45% at 1032.5 nm while at 1078 nm we measured 1.5 W with eta = 34%. Finally, we report the measured level of the Amplified Spontaneous Emission (ASE) for both samples, which was found to be less than 0.1 mW at the maximum pump power.
Journal/Review: LASER PHYSICS
Volume: 22 (12) Pages from: 1851 to: 1855
More Information: The research was supported by Regione Toscana, project \”CTOTUS-Progetto integrato per lo sviluppo della Capacita Tecnologica e Operativa della Toscana per l\’Utilizzo dello Spazio\” (POR FESR 2007-2013 Attivita 1.1 Linea d\’intervento D) and by Consiglio Nazionale delle Ricerche, CNR, project RSTL \”Ricerca Spontanea a Tema libero,\” id. 959.KeyWords: Amplified spontaneous emissions; Ceramic samples; Laser gain media; Laser oscillations; Laser output; Maximum output power; Maximum pump power; Quasi-continuous waves; Slope efficiencies; Tunabilities; Yb-doped, Ceramic materials; Ytterbium, Pumping (laser); Lu2O3; Sc2O3DOI: 10.1134/S1054660X12120237Citations: 7data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-01-23References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here