Xu Bin, Wang Yi, Huang Xiaoxu, Lan Jinglong, Lin Zhi, Luo Zhengqian, Xu Huiying, Cai Zhiping, Moncorgé Richard
Opt Express. 2016 Feb 22;24(4):3601-6. doi: 10.1364/OE.24.003601.
We report on a 808 nm diode-pumped Nd:YAG narrow linewidth laser at 1834.25 nm using a compact two-mirror linear cavity. In free-running mode, a maximum output power of 1.10 W is obtained with a slope efficiency of about 11.1% at a cooling temperature of the laser crystal of 18°C. Decreasing this temperature down to 8°C increases the output power linearly up to 1.31 W. Shortening the laser cavity reduces the output power down to about 0.70 W but on a single longitudinal mode. These laser results represent the best laser performance ever achieved with any Nd-doped bulk material in the 1.8 µm mid-infrared spectral range.
我们报道了一种采用紧凑型双镜线性腔的808 nm二极管泵浦Nd:YAG窄线宽激光器，其波长为1834.25 nm。在自由运转模式下，当激光晶体的冷却温度为18°C时，获得了1.10 W的最大输出功率，斜率效率约为11.1%。将该温度降至8°C可使输出功率线性增加至1.31 W。缩短激光腔会使输出功率降至约0.70 W，但能实现单纵模输出。这些激光实验结果代表了在1.8 µm中红外光谱范围内，任何掺钕块状材料所取得的最佳激光性能。
