光纤激光相控阵相干合成技术研究进展

Research progress of coherent beam combining technique of phased fiber laser array

主要介绍了近年来光纤激光相控阵相干合成技术的发展现状,总结了中国科学院光电技术研究所在这方面的最新研究成果,包括基于振幅调制的光纤激光相控阵相干合成能力优化、光纤激光相控阵实现收发一体相干合成、光纤激光相控阵的目标在回路相干合成、光纤激光相控阵在大气湍流下实现耦合接收光束的共相合束、基于多孔径波前探测的相干合成方法、基于自适应光纤准直器和微透镜阵列的光束大角度高精度连续寻址扫描等。以上研究工作将促进光纤激光相控阵技术朝向更多单元、更高功率、更远距离等方向演进,并推动其与激光大气传输、空间激光通信、自适应光学等理论和应用的结合与发展。

This paper introduces the state-of-the-art coherent beam combination of phased fiber laser array(PFLA),and summarizes the latest research progress in this area at the Institute of Optics and Electronics,Chinese Academy of Sciences,including optimization of coherent combining capability of PFLA based on amplitude modulation,transceiving coherent combining of PFLA,coherent combining of PFLA using target-in-the-loop,co-phasing combining of receiving beamlets of PFLA under atmospheric turbulence,the method of coherent combining based on multi-aperture wavefront detection,as well as the large-angle high-precision continuous addressing scanning of beams using adaptive fiber-optics collimator and microlens array scanner.The above research will promote the evolution of PFLA technology towards more units,higher power,longer distance etc.,and facilitate its combinations and developments with laser atmospheric transmission,space laser communication,adaptive optics and other related theories and applications.