空间光通信用半导体激光器

Semiconductor Lasers for Free-space Optical Communications

自由空间激光通信技术是未来空间基础设施的关键技术之一 ,作为其光源的半导体激光器 ,有特殊的要求 ,主要是适合大气传输的低损耗波长窗口、超大功率、窄波束宽度 ,以及高数据速率。主要介绍自由空间激光通信对半导体激光器性能的要求 ,以及目前用于空间光通信的半导体光源的开发进展。

Free-space lasercomm technology is one of the key technologies for future space infrastructures.The semiconductor laser diodes used as the optical source imposes stringent demands on the practical systems.Such demands are mainly the wavelength suited for atmosphere low loss window,supper high-power output,narrow beamwidth and high-data-rate.Recent progress of the semiconductor laser diodes for free-space lasercomm is described in this paper.