Abstract
Based on Haus master equation, the expression of small signal gain and of critical pump power, a numerical simulation is derived for the relations of critical pump power and output parameters to the ratio of radius of pump and oscillation beam, the length and concentration of laser crystal. The result shows that when the length of 1 mm and concentration of 5 at.% of the crystal is used, 1,030 nm laser of average output power of 10.5 W and pulse duration of 8.6 ps is obtained under the pump power of 35 W and the ratio of 1. Further, the critical pump power become lower, and the pulse become more powerful and narrower, while the ratio get closer to 1, crystal get longer and concentration get higher.
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This work was supported by the Key Project of Beijing Municipal Education Commission Research Program (Kz201110005010), and the National Natural Science foundation of China (Grant No. 11274031).
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Wang, J., Wang, L. & Zhan, Y. Numerical investigation on output characteristics of diode-pumped Yb:YAG mode-locked laser with saturable absorber. Opt Quant Electron 47, 1157–1164 (2015). https://doi.org/10.1007/s11082-014-9972-5
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DOI: https://doi.org/10.1007/s11082-014-9972-5