Risultati scientifici

Characterization of the lasing properties of a 5% Yb doped Lu2SiO5 crystal along its three principal dielectric axes

Anno: 2015

Autori: Toci G., Pirri A., Beitlerova A., Shoji Y., Yoshikawa A., Hybler J., Nikl M., Vannini M.

Affiliazione autori: CNR Istituto Nazionale di Ottica – Via Madonna del Piano 10 50019 Sesto Fiorentino (FI) CNR, Italy;
CNR Istituto di Fisica Applicata “Nello Carrara” – Via Madonna del Piano 10 50019 Sesto Fiorentino (FI)CNR, Italy;
Institute of Physics Academy of Sciences of the Czech Republic, Cukrovarnicka 10, Prague 16253 Czech Republic;
Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 Japan;
New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai Miyagi 980-8579 Japan

Abstract: The laser performance of a 5% Yb doped Lu2SiO5 (Yb:LSO) has been investigated in quasi continuous-wave pumping regime along the three principal dielectric axes of the crystal, to obtain a complete characterization of its laser properties. The comparison among the obtained results for differently polarized lasers, in term of relative slope efficiency and absolute efficiency, allows the exploitability of different orientations of the material in order to be determined to obtain efficient laser sources. The laser slope efficiency and the energy conversion efficiency were similar for emission polarized along the three indicatrix axes, with noticeable maximum values of slope efficiency around 90% for polarization along the Y and Z axes. Tunable laser action has been obtained in the range 990 nm -1084 nm, with sizeable differences in the shape of the tuning curve for polarization along the X, Y and Z axes. In particular, the tuning for polarization along the Z axis is relatively flat and uniform in the range 1023 nm – 1083 nm. (C) 2015 Optical Society of America

Giornale/Rivista: OPTICS EXPRESS

Volume: 23 (10)      Da Pagina: 13210  A: 13221

Maggiori informazioni: This activity has been supported by the CNR-AVCR Joint Project 2013-2015 “Influence of composition and defects on the properties of transparent ceramics and crystals for laser and scintillator applications.”
Parole chiavi: Conversion efficiency; Energy conversion; Polarization; Ytterbium, Absolute efficiencies; Laser performance; Laser property; Lasing properties; Polarized lasers; Quasi-continuous waves; Slope efficiencies; Tunable laser action, Pumping (laser)
DOI: 10.1364/OE.23.013210

Citazioni: 8
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2021-12-05
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