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Intersatellite Laser Communication Systems for Harsh Environment of Space

机译：用于恶劣空间环境的星际激光通信系统

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This paper will focus on the trends for the space-based lasers, optics and terminals used in the intersatellite networks. Reviewed and evaluate the recent development in the space-based laser technologies and the critical parameters that are employed for successful high-speed inter-satellite communications systems. Building laser for high speed communications network for the harsh environment of space using optical links in space has proven to be complicated task and many such schemes were tried without success in the past. Space-based optical communications using satellites in low earth orbit (LEO) and Geo-synchronous orbits (GEO) hold great promise for the proposed Internet in the Sky network of the future. However in the last few years, there has been impressive progress made to bring the concept of laser-based intersatellite systems to fruition in civilian and government-non classified projects. Laser communications offer a viable alternative to established RF communications for inter-satellite links and other applications where high performance links are a necessity. High data rate, small antenna size, narrow beam divergence, and a narrow field of view are characteristics of laser-based systems and they are just few numbers of potential advantages for system design over radio frequency communication.
机译：本文将重点介绍星际网络中使用的天基激光器，光学器件和终端的趋势。审查并评估了天基激光技术的最新发展以及成功用于高速卫星间通信系统的关键参数。使用太空中的光链路为太空的恶劣环境构建用于高速通信网络的激光器已被证明是一项复杂的任务，并且过去尝试了许多此类方案，但均未成功。使用低地球轨道（LEO）和地球同步轨道（GEO）中的卫星进行的空基光通信，为未来的Sky网络中的Internet提出了广阔的前景。然而，在过去几年中，在民用和非政府机密项目中，将基于激光的卫星间系统的概念付诸实践已取得了令人瞩目的进展。对于卫星间链路和其他需要高性能链路的应用，激光通信为已建立的RF通信提供了可行的替代方案。高数据速率，小天线尺寸，狭窄的光束发散和狭窄的视野是基于激光的系统的特征，与通过射频通信进行系统设计相比，它们仅是少数潜在优势。

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