光纤激光器是近几年激光领域人们关注的热点之一,倍频晶体也随之发展起来。本文通过分析国内外各科研机构关于光纤激光器的倍频实验,指出各种常用倍频晶体的优点和缺陷,对未来使用倍频晶体的实验具有指导和参考价值。 Fiber laser in recent years, one of the hot spots in the field of laser, frequency doubling crystal also will be developed. In this paper, by analyzing the frequency doubling experiments of fiber lasers at home and abroad, the advantages and disadvantages of various commonly used frequency doubling crystals are pointed out, which will be of guidance and reference value for the experiment of using frequency doubling crystals in the future.