文章首先说明了星载激光通信较传统微波通信的先进性和重要性, 介绍了激光通信系统的基本组成, 简述了系统的工作过程。之后总结了国外的星载激光通信项目和发展计划, 重点介绍了日本、美国和欧洲近几年在星载激光通信领域的研究现状, 同时也简述了国内各高校以及研究所的研究进展。接着指出了目前星载激光通信的难点并且归纳了与之相关的关键技术。最后, 对星载激光通信的未来发展趋势进行了展望。

In this article we explain the advancement and importance of spaceborne laser communication comparing with traditional microwave communication, introduce the basic components of laser communication systems, and briefly describe the working process of the system. After that, the foreign satellite-borne laser communication projects and development plans are summarized, focusing on the research status of satellite-borne laser communication in Japan, the United States and Europe in recent years. Besides, we also concisely describe the research progress in domestic universities and research institutes and point out the difficulties of current spaceborne laser communication and summarize the key technologies related to it. Finally, the future of the development of spaceborne laser communication is prospected.