Scientific Results

Characterization and comparison of 1% at Yb-doped Lu2O3 and Sc2O3 ceramics as laser gain media

Year: 2012

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; Sc2O3
DOI: 10.1134/S1054660X12120237

Citations: 7
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-01-23
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