Continuous-wave fiber-pumped Cr2+:ZnSe laser
Continuous-wave fiber-pumped Cr2+:ZnSe laser
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连续波光纤泵浦 Cr2 :ZnSe 激光器
DOI：
10.1117/12.661725
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Hugo Thienpont
中科院分区：
文献类型：
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作者：
U. Demırbas;A. Sennaroğlu;Nathalie Vermeulen;H. Ottevaere;Hugo Thienpont
研究了由铥光纤激光器在 1800 nm 泵浦的紧凑、宽范围可调、连续波 (cw) Cr2+:ZnSe 激光器的功率性能。在激光实验中，使用小信号微分吸收系数为11 cm-1、荧光寿命为4.6 μs 的Cr2+:ZnSe 样品。具有 15% 输出耦合器的像散补偿 x 腔在 2480 nm 处产生高达 640 mW 的输出功率，并具有 2.5 W 的入射泵浦功率。使用三种不同的方法研究谐振器损耗，并对结果进行深入分析。由激光阈值数据和荧光测量确定的受激发射截面值彼此非常一致。最后，通过使用腔内布儒斯特切割 MgF2 棱镜和单组光学器件，在 2240 至 2900 nm 范围内演示了激光的广泛、连续调谐。
Power performance of a compact, broadly tunable, continuous-wave (cw) Cr2+:ZnSe laser pumped by a thulium fiber laser at 1800 nm was investigated. In the lasing experiments, a Cr2+:ZnSe sample with a small-signal differential absorption coefficient of 11 cm-1 and a fluorescence lifetime of 4.6 μs was used. An astigmatically compensated x-cavity with 15 % output coupler produced as high as 640 mW of output power at 2480 nm with 2.5 W of incident pump power. Resonator losses were investigated using three different methods, and an in-depth analysis of the results was performed. The stimulated emission cross section values determined from laser threshold data and fluorescence measurements were in good agreement with each other. Finally, broad, continuous tuning of the laser was demonstrated between 2240 and 2900 nm by using an intracavity Brewster-cut MgF2 prism and a single set of optics.