激光是受激辐射的光放大，所辐射的波长取决于增益介质中关键电子的能级结构，特别是其最外层电子的状态决定了可能实现的激光特性。激光发展60年来，激光晶体作为激光的重要激活材料，推动了激光技术的进步和普及，是一个研究历史长而又异常活跃的研究领域。当前，超短超强脉冲激光在加工、医疗、**等关系国计民生的领域有重要需求，适合超短超强激光的激光晶体成为了本领域的研究热点，其关键是揭示最外层电子的影响因素及设计和生长具有宽波段发射性能的激光晶体。本论文从探讨影响激活离子光谱性能的关键因素出发，综述了以本课题组十余年研究的10余种无序激光晶体为主要部分的研究结果和进展，涉及晶体生长、晶体物理、激光器件设计及应用等工作，包含了高级、中级和低级对称性晶体及其获得的最短脉冲激光结果，希望能为本领域的后续研究提供一定的参考和借鉴。

Laser is the light amplification by stimulated emission of radiation, and its wavelength is dependent key electronic structures of active ions, especially those in the outmost levels. Up to now, the lasers have been developed for 60 years, and the laser gain crystals have become the most important materials in the laser regimes boosting the development of lasers and applications. Now, the ultrafast pulsed lasers with the advantages of high peak power and ultrafast pulse width have been successfully applied in many important areas, which pushes that the research on the laser crystals suitable for the ultrafast pulsed lasers has become more and more important. The key of researching on the ultrafast laser crystals is the discovery of the physical parameters and the growth of laser crystals with broadband gain spectra. In this review, the disordered laser crystals including more than 10 kinds of crystals grown by our group and others are reviewed, with the beginning of the discussion of physical parameters of spectra of gain media. The crystal growth, crystalline physics and laser devices are included and their pulsed laser results are also presented. We hope this paper can provide some references for the readers.