中红外超连续谱(SC)光源在工业过程控制、环境监测、生物医学等众多领域有着广泛的应用,是目前国内外的研究热点。在中红外SC产生的抽运源上,随着2μm波段脉冲激光的发展,用长波长脉冲源抽运软玻璃光纤产生超连续谱是中红外SC光源发展的一个新尝试。目前,2μm脉冲激光可经由掺铥光纤放大器实现高功率输出,经由2μm波段的 Mid-infrared supercontinuum (SC) light sources have been widely used in many fields such as industrial process control, environmental monitoring, biomedicine and so on, and are currently the hotspots of research at home and abroad. In the mid-infrared (SC) pump source, with the development of pulsed laser at 2μm wavelength, using long-wavelength pulse source to pump soft glass fiber to produce supercontinuum is a new attempt of the development of mid-infrared SC light source. Currently, 2μm pulsed lasers can be high-power output via doped 铥 fiber amplifier, through the 2μm band