论文部分内容阅读
中红外超连续谱光源在生物医学、光谱学、光电对抗和环境科学等领域具有广阔的应用前景。目前,利用声子能量比石英低的氟化物光纤可以将超连续谱光源的光谱拓展至4.2μm,利用声子能量更低的硫系玻璃光纤或波导可获得波长更长的超连续谱光源。但是,利用硫系玻璃光纤产生超连续谱光源时,通常将高峰值功率的光参量放大器作为抽运源,使得超连续谱光源存在体积大、价格昂贵、稳定性差、不易维护等缺点,
Mid-infrared supercontinuum light sources have broad applications in such fields as biomedicine, spectroscopy, optoelectronic countermeasures and environmental science. Currently, the use of fluorophores with lower phonon energy than quartz can extend the spectrum of supercontinuum sources to 4.2 μm, and longer-wavelength supercontinuum sources can be obtained using chalcogenide glass fibers or waveguides with lower phonon energy. However, the use of chalcogenide glass fiber to produce supercontinuum light source usually uses the high peak power optical parametric amplifier as the pumping source, which makes the supercontinuum light source have the disadvantages of large volume, high price, poor stability and difficult to maintain,