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超短脉冲激光器从20世纪80年代开始,经历了从染料到固体飞秒激光器的发展,开辟了科学和工业应用的新时代。但昂贵的价格,庞大的体积,对环境的稳定性差等缺陷阻碍了其应用。探索新机理,突破现有飞秒激光局限,研制新一代飞秒激光成为世界范围内的热门课题。自20世纪90年代初,光纤激光器利用半导体激光器抽运,具有小巧、结构简单、
Since the 1980s, ultra-short pulse lasers have experienced the development from dye to solid femtosecond lasers and opened up a new era of scientific and industrial applications. However, the disadvantages of expensive price, large volume and poor stability to the environment have hindered its application. To explore new mechanisms, to break the limitations of the existing femtosecond laser, the development of a new generation of femtosecond laser has become a hot topic in the world. Since the early 1990s, fiber lasers have been pumped by semiconductor lasers and have the advantages of small size, simple structure,