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

Anno: 2012

Autori: Angela Pirri; Guido Toci; Matteo Vannini

Affiliazione autori: 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.

Giornale/Rivista: LASER PHYSICS

Volume: 22 (12)      Da Pagina: 1851  A: 1855

Maggiori informazioni: 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.
Parole chiavi: 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

Citazioni: 7
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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