Details

Autor(en) / Beteiligte

• Rico, M
• Liu, J
• Cano-Torres, J M
• Garcia-Cortes, A
• Cascales, C
• Zaldo, C
• Griebner, U
• Petrov, V

Titel

Continuous wave and tunable laser operation of Yb in disordered NaLa(MoO4)2

Ist Teil von

• Applied physics. B, Lasers and optics, 2005-09, Vol.81 (5), p.621-625

Erscheinungsjahr

2005

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Continuous-wave Yb laser operation is studied in single crystals of disordered NaLa(MoO4)2 at room temperature. The sample used was grown by the Czochralski technique and incorporates an Yb ion density of 3.1X10 cm. The effect of the Yb concentration on some of the crystal properties is described as well as the spectroscopic Yb properties at 5 K. Maximum slope efficiencies of about 40% for *p and 38% for *s polarization were obtained under Ti:sapphire laser pumping near 976 nm, respectively. The maximum output power for the *p polarization was 400 mW at 1039.5 nm, the threshold in this case amounted to 240 mW (absorbed pump power). The laser emission was tunable between 1016 and 1064 nm with a Lyot filter. Lasing was also realized by pumping with a fiber-coupled diode laser module. Maximum output power of 900 mW at 1035 nm was achieved in this case for the *p polarization and the threshold was 280 mW. The results, in terms of output power and tunability, are superior in comparison to all previous reports on Yb-doped disordered double tungstate or molybdate crystals and represent a significant improvement in comparison to earlier experiments with low-doped Yb:NaLa(MoO4)2.