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Continuous wave and tunable laser operation of Yb3+ in disordered NaLa(MoO4)2

AuthorsRico, Mauricio CSIC ORCID CVN; Liu, Junhai; Cano-Torres, José María CSIC ORCID; García-Cortés, Alberto; Cascales, Concepción CSIC ORCID; Zaldo, Carlos CSIC ORCID; Griebner, Uwe; Petrov, Valentín
Optical Spectrocopic
Laser materials
tunable lasers
diode-pumped lasers
Issue Date24-Aug-2005
CitationApplied Physics - Section B - Lasers and Optics 81 : 621-625 (2005).
AbstractContinuous-wave Yb3+ 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 3.1×1020 cm-3. The effect of the Yb concentration on some of the crystal properties is described as well as the spectroscopic Yb3+ properties at 5 K. Maximum slope efficiencies of about 40% for π and 38% for σ polarization were obtained under Ti:sapphire laser pumping near 976 nm, respectively. The maximum output power for the π 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 π 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.
Publisher version (URL)http://dx.doi.org/10.1007/s00340-005-1939-6
Appears in Collections:(ICMM) Artículos
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