搭建了由国产1908nm掺铥光纤激光器抽运的中红外可调谐窄线宽Cr…ZnSe激光器。该激光器为X型腔结构,在抽运功率6.8 W时连续光最大输出功率为1.6 W,对应的斜效率为26.7%,中心波长为2420nm。采用Littrow结构实现了2284~2716nm的连续可调谐,调谐范围为432nm,半峰全宽(FWHM)为0.13nm;抽运功率5 W时采用输出比22%的耦合输出镜在2350~2510nm范围内获得了大于500mW的输出。采用Littman结构实现了2305~2658nm的连续可调谐,调谐范围为353nm,FWHM小于0.05nm;抽运功率5 W时可在2350~2520nm范围内实现300mW以上激光功率输出。 A mid-infrared tunable narrow-line-width Cr ... ZnSe laser built by a domestic 1908nm doped 铥 fiber laser is constructed. The X-ray cavity structure of the laser at a pumping power of 6.8 W maximum continuous output power of 1.6 W, the corresponding ramp efficiency of 26.7%, the center wavelength of 2420nm. The tunable range of 2284 ~ 2716nm is achieved with the Littrow structure, with a tuning range of 432nm and a full width at half maximum (FWHM) of 0.13nm. When the pumping power is 5W, the coupling output with a 22% output ratio is used in the 2350 ~ 2510nm range Achieved greater than 500mW output. The Littman structure is used to achieve continuous tunability of 2305 ~ 2658nm with tuning range of 353nm and FWHM less than 0.05nm. When the pumping power is 5W, laser power of more than 300mW can be achieved in the range of 2350 ~ 2520nm.