本文报道了具有增强谐振倍频腔的全固态紫外激光器研究半导体激光二极管（ＬＤ）泵浦的Ｎｄ∶ＹＶＯ４ 激光晶体产生波长为１０６４ｎｍ 的近红外光，腔内倍频输出波长为５３２ｎｍ 的绿光，再送入增强谐振腔进行四倍频，输出波长为２６６ｎｍ 的深紫外激光产生深紫外激光的基频绿光输入阈值可低到２５ｍ Ｗ 据我们所知，这是国内首次报道的全固态紫外激光器 In this paper, the study of all-solid-state UV lasers with enhanced resonant double-frequency cavities has been reported. Nd: YVO4 laser crystals pumped by a semiconductor laser diode (LD) produce near infrared light with a wavelength of 1064 nm. , And then into the enhanced cavity for fourfold frequency, the output wavelength of 266nm deep ultraviolet laser  produce deep UV laser with green frequency threshold of low-light input can be as low as 2  5m W  To our knowledge, this is the first report All-solid-state UV laser