近年来，随着激光二极管的快速发展，以及一些先进热管理方案和模式控制技术的涌现，固态激光器的输出功率迅速攀升至100 kW，光束质量也得到了较好的控制。归纳高能固态激光器的特点，简要介绍了国外固态高能激光器研发计划的进展情况。对当前已经实现了100 kW功率输出或者具备100 kW功率输出潜力的几种技术路线进行了深入细致的分析，包括热容激光器、薄片激光器、板条激光器、液体冷却激光器和光纤激光器，分别介绍了其设计理念、最新进展，并评价了它们的光束质量控制措施。

With the rapid development of laser diode and the presence of advanced technology in thermal management and mode control, the average power of solid state laser has already rushed to 100 kW class in recent few years. The characteristics of solid state laser compared with chemical and gas lasers are outlined at first, followed by the detailed examination of several technical approaches which can enable 100 kW laser output, including heat capacity laser, thin disc laser, slab laser systems based on coherent combination, liquid cooling solid state laser(under HELLADS project) and finally fiber laser. After introducing the core concepts and presenting the current research status of these lasers, we conclude by pointing out the secrets behind the good beam quality.