Stable Q-Switched Yb:NaY(WO4)2 Laser with Cr4+:YAG Saturable Absorber  

Stable Q-Switched Yb:NaY(WO4)2 Laser with Cr4+:YAG Saturable Absorber

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作  者:兰瑞君 

机构地区:[1]School of Opto-electronic Information Science and Technology,Yantai University

出  处:《Chinese Physics Letters》2015年第6期89-91,共3页中国物理快报(英文版)

基  金:Supported by the National Natural Science Foundation of China under Grant No 61405171;the Natural Science Foundation of Shandong Province under Grant No ZR2012FQ014;the Science and Technology Program of the Shandong Higher Education Institutions of China under Grant No J13LJ05

摘  要:The passively Q-switched Yb:NaY(W04)2 (Yb:NaYW) laser is studied. By using Cr^4+ : yAG as the saturable absorber, a very stable pulse train is obtained. At a high pump power, the pulse to pulse timing jitter is measured to be less than 2% and the amplitude fluctuation is less than 4%. A Q-switched average output power of 2.3 W at 1029 nm is generated with a slope efficiency of 33.9%; the one-dimensional intensity distribution of the laser facula is of the Gaussian type. The output repetition rate, pulse energy, pulse width and peak power are 33.3 kHz, 70μJ, 36 ns and 2.0 k W, respectively. The passively Q-switched process is simulated by solving the rate equations, the simulated results are in good agreement with the experimental data.The passively Q-switched Yb:NaY(W04)2 (Yb:NaYW) laser is studied. By using Cr^4+ : yAG as the saturable absorber, a very stable pulse train is obtained. At a high pump power, the pulse to pulse timing jitter is measured to be less than 2% and the amplitude fluctuation is less than 4%. A Q-switched average output power of 2.3 W at 1029 nm is generated with a slope efficiency of 33.9%; the one-dimensional intensity distribution of the laser facula is of the Gaussian type. The output repetition rate, pulse energy, pulse width and peak power are 33.3 kHz, 70μJ, 36 ns and 2.0 k W, respectively. The passively Q-switched process is simulated by solving the rate equations, the simulated results are in good agreement with the experimental data.

关 键 词:YB YAG Saturable Absorber Stable Q-Switched Yb:NaY 

分 类 号:TN248[电子电信—物理电子学]

 

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