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High-power diode-directly-pumped tenth-order harmonic mode-locked TEM00 Nd:YVO4 laser with 1 GHz repetition rate |
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| Authors: | Li F -Q Zong N Han L Tian C -Y Bo Y Peng Q -J Cui D -F Xu Z -Y |
| Institution: | 1.RCLPT, Key Laboratory of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China ;2.Key Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China ;3.Graduate School of the Chinese Academy of Sciences, Beijing, 100190, China ; |
| Abstract: | A high-efficiency high-power diode-directly-pumped tenth-order harmonic mode-locked TEM00 Nd:YVO4 laser with 1 GHz repetition rate was first demonstrated. The maximum output power was 10.4 W with optical-optical efficiency of 41.8% and slope efficiency of 78.1%, respectively, the pulse width was about 30 ps at the output power of 9.6 W. Based on the large third-order nonlinearity of Nd:YVO4, the tenth-order harmonic mode-locked pulses were induced by the intensity-dependent Kerr effect and the cooperative action of counter-propagating pulses colliding in the laser crystal for a colliding-pulse-modelocking-like cavity. The pulses were further modulated by a semiconductor saturable absorber mirror. |
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