基于阳光泵浦激光技术的空间光通信研究综述

Review of free space optical communication based on solar-pumped laser technology

摘要:

对基于太阳光泵浦激光技术的空间光通信研究进行了综述。介绍了太阳光泵浦激光技术在空间光通信领域的研究进展，总结了不同类型太阳光泵浦激光技术在系统设计中存在的优缺点。对于太阳光泵浦激光技术，较高能量转换效率潜力是其空间应用的重要优势，详述了太阳光泵浦激光技术中主要的能量转换环节及其影响因素等问题。为提高空间“太阳光-激光”转换效率，提出了一种太阳光泵浦光纤激光技术的设计方法，论述了其研究进展、应用前景及目前存在的问题。最后，结合该设计方法的仿真结果及效能预期提出未来重点研究的几个方向，如高效率太阳光会聚至光纤、多稀土离子掺杂增益光纤等。

Abstract:

The research on space optical communication based on solar-pumped laser technology is reviewed in this paper. The research progress of solar-pumped laser in the field of space optical communication is introduced, and the advantages and disadvantages of solar-pumped laser with different types in system design are summarized. For solar-pumped laser technology, higher energy conversion efficiency is an important advantage for its space application. The main energy conversion links in solar-pumped laser technology and the influencing factors are detailed. In order to improve the conversion efficiency of “sunlight to laser” in space, a design method of solar-pumped fiber laser technology is proposed, and its research progress, application prospects and current problems are discussed. Finally, combined with the simulation results and performance expectations of the new design method, several key research directions in the future are proposed, such as high-efficiency sunlight converging to the fiber, and multi-rare-earth ion-doped gain fiber.