研究了在低温条件下,利用功率为2 W的激光二极管(LD)抽运液氮制冷Tm(6%),Ho(0.5%):YLF激光器,产生波长为2.05 μm的线偏振连续激光输出,最大功率350 mW,光-光转换效率为20%.

Tm (6%), Ho (0.5%):YLF laser cooled by liquid nitrogen pumped by a laser diode with 792 nm wavelength was studied in theory and experiment The maximum 350 mW output power was obtained, and optical-optical conversion efficiency is 20% corresponding to 28% slope efficiency. The threshold power and output power dependence on the temperature of Tm,Ho:YLF crystal and the wavelength of LD were also studied.