High-Power High-Brightness Operation of a 2.25- $mu$m (AlGaIn)(AsSb)-Based Barrier-Pumped Vertical-External-Cavity Surface-Emitting Laser
High-Power High-Brightness Operation of a 2.25- $mu$m (AlGaIn)(AsSb)-Based Barrier-Pumped Vertical-External-Cavity Surface-Emitting Laser
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2.25- $mu$m (AlGaIn)(AsSb) 基势垒泵浦垂直外腔面发射激光器的高功率高亮度运行
DOI：
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发表时间：
2008
影响因子：
2.6
通讯作者：
J. Wagner
中科院分区：
文献类型：
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作者：
B. Rosener;N. Schulz;M. Rattunde;C. Manz;K. Kuhler;J. Wagner
我们报告的输出功率性能和光束轮廓分析的光泵浦的砷化镓基垂直外腔面发射激光器工作在2.25妈妈。SiC散热器的使用和对温度依赖的模态增益的精确控制允许改进的高功率操作，在10摄氏度的低温下最大连续波输出功率为3.4W。在0 ℃时，观察到最大输出功率> 2.9W，并且在室温下仍获得大于1.6W。采用二阶矩定义光束直径，在最大输出功率下测得光束传输因子M2~5。优化激光器的光束质量导致接近高斯TEM 00模式（M2 ap 1.5）的光束轮廓，并且在0摄氏度下仍大于2 W的输出功率。
We report on the output power performance and beam profile analysis of an optically pumped GaSb-based vertical-external-cavity surface-emitting laser operating at 2.25 mum. The use of a SiC heatspreader and a precise control of the temperature-dependent modal gain allowed for improved high-power operation with a maximum continuous-wave output power of 3.4W at 10degC heatsink temperature. At 0degC, a maximum output power >2.9 W was observed and still more than 1.6 W were obtained at room temperature. Using second-order moments for the definition of the beam diameter, a beam propagation factor M2~5 of was measured at maximum output power. Optimizing the beam quality of the laser resulted in a beam profile close to the Gaussian TEM00 mode (M2 ap 1.5) and still more than 2-W output power at 0degC.