激光器是一切激光与光电子科研与产业的基础,从1960年的第一台红宝石激光器到现如今的全固态激光器、光纤激光器,激光器的种类不断增多,各项性能指标不断提高,技术不断精进。本期激光器专题发表了多个国内著名激光器研究小组的评论文章,内容包括TEA CO_2激光器、微腔半导体激光器、光纤激光器等。同时编辑还采访了上海光机所李建郎研究员。他们最近在径向偏振激光器方面做出了很有意义的工作。 Lasers are the basis of all laser and optoelectronics research and industries. From the first ruby ​​laser in 1960 to the now all-solid-state lasers, the types of fiber lasers and lasers are constantly increasing. All kinds of performance indexes are continuously improved and technologies are constantly improving. This issue of laser topics published a number of domestic famous laser research team commentary, including TEA CO_2 laser, micro-cavity semiconductor lasers, fiber lasers. At the same time, the editor also interviewed researcher Li Jianlang from Shanghai Institute of Light Machinery. They have done a lot of work recently on radial polarization lasers.