A diode-pumped tunable single frequency Tm:YAG laser at room temperature using two etalons |
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Authors: | L Wang C Q Gao M W Gao Y Zheng Y S Zhang R Wang |
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Institution: | 1.School of Opto-Electronics,Beijing Institute of Technology,Beijing,China |
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Abstract: | We report a diode pumped single frequency Tm:YAG laser with two coated fused silica etalons as mode selectors. The maximum
single frequency output power was 681 mW with the pumping power of 4.83 W. The slope efficiency of single-frequency laser
was 20.5% and the optical-to-optical conversion efficiency was 14.2%. According to the experimental results, we developed
a prototype with the maximum single frequency output power of 249 mW and the slope efficiency of 23.1%. The frequency tuning
was investigated by changing the temperature of the crystal. A tuning coefficient of 2.57 GHz/°C was obtained. The beam propagation
factors M2 were measured as 1.01 in both directions. The linewidth of the single frequency was 40 kHz. |
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