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掺钕离子的ＬＮＡ因具有宽荧光谱线、高的增益系数、高掺杂浓度和有利于多种泵浦类型的宽的吸收光谱而被应用于超短脉冲领域。利用负反馈控制技术对这种新型的激光材料进行了锁模研究。获得了近变换限的脉宽５ｐｓ，光谱半宽０．４３ｎｍ的稳定激光输出
The neodymium-doped LNA has been used in the field of ultrashort pulses due to its broad fluorescence line, high gain factor, high doping concentration and broad absorption spectra for a wide range of pump types. The new laser material was mode-locked by using negative feedback control technology. A stable laser output with pulse width of 5ps and spectral half-width of 0.43nm was obtained