在室温条件下, 利用激光二极管双端抽运Tm:YLF板条激光器方案实现了1 908 nm的激光输出, 选择合适的泵浦光斑尺寸, 当晶体温度控制在18 ℃, 获得的最大连续输出功率为60.1 W, 斜率效率为39.8%, 通过采用VBG配合0.3 mm F-P的方法实现了波长的精细控制, 半峰值宽度约为0.14 nm。

A 1 908 nm Tm:YLF slab laser pumped by two fiber coupled diode lasers at room temperature is reported. The suitable size of spot is chosen. The maximum continuous output power is 60.1 W at 18 ℃, corresponding to the slope efficiency of 39.8%. The precise control of wavelength is achieved by adopting the method of volume body grating (VBG) with 0.3 mm F-P, corresponding to the full-width at half-maximum (FWHM) of 0.14 nm.