End-pumped Tm,Ho:NaY(WO4)2 crystal laser at 2.07 μm
2010; IOP Publishing; Volume: 20; Issue: 8 Linguagem: Inglês
10.1134/s1054660x10150119
ISSN1555-6611
AutoresF. G. Yang, Chaomin Sun, Zhiwei You, Chaoyang Tu, G. Zhang, Haiyong Zhu,
Tópico(s)Laser Design and Applications
ResumoWe presented an infrared laser output at 2.07 μm with Tm,Ho:NaY(WO4)2 crystal end-pumped by 795 nm laser diode at room temperature. The crystal was grown by the Czochralski method with the concentrations of 5 at % Tm3+ and 1 at % Ho3+. The highest output power was up to 2.7 W corresponding to the crystal temperature being controlled at 283 K. The overall optical conversion efficiency was 5.4% and the slop efficiency was 26%. The output characteristics and the laser threshold affected by the pulse duration and temperature have been studied. We found the stability of the output power was correlative with the crystal temperature heavily. In addition, the wider pulse duration of pump could promote the output power efficiently.
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