首页|Continuous wave and active Q-switched operation of Watt-level LED-pumped two-rod Nd,Ce∶YAG laser

Continuous wave and active Q-switched operation of Watt-level LED-pumped two-rod Nd,Ce∶YAG laser

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A high-performance LED-side-pumped two-rod Nd,Ce∶YAG laser with continuous-wave(CW)and acousto-optical(A-O)Q-switched operation is demonstrated in this work.A symmetrically shaped flat-flat cavity with two identical LED-side-pumped laser modules is employed for power scalability.In the CW regime,the maximum output average power of laser at 1064 nm is 4.41 W,corresponding to a maximum optical conversion efficiency of 5.3％and a slope efficiency is 12.4％.In the active Q-switched regime,the pulse energy of laser reaches as high as 0.89 mJ at a repetition rate of 800 Hz with a pulse width of 457.2 ns,the corresponding highest peak output power is 1.94 kW and the M2 factor is measured to be about 8.8.To the best of the authors'knowledge,this is the first demonstration and the highest performance of a CW LED-side-pumped two-rod laser Nd,Ce∶YAG with Watt-level output reported so far.

Watt-levelLED-pumpedCWNdCe∶YAGactively Q-switched operation

沈建平、芦鹏、徐少聪、江容容、陈阳、陈亮、邢凤阳

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College of Electronic and Optical Engineering & College of Flexible Electronics,Nanjing University of Posts and Telecommunications,Nanjing 210023,China

Fund from Nanjing University of Posts and Telecommunications,ChinaFund from Nanjing University of Posts and Telecommunications,ChinaKey Research and Development Program of Shandong Province,China

JUH219002JUH2190072021CXGC010202

2024

10.1088/1674-1056/ad34c9

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(7)
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