摘要
本文讨论了光隔离在收发合置相干激光雷达中的作用.分析了波片和内反射方式的1/4λ位相推迟器的特点,并研制了用于光隔离的多晶锗1/4λ菲涅耳菱体.该菱体较好地用于CO_2激光外差接收系统中,其能量转换效率达到93%以上.
Light isolators in common transmitter/receiver antenna coherent laser radars is discussed in this paper. The characteristics of quarter waveplate and Fresnel rhomb are analysed, and the quarter retarders of Ge crystal are designed and produced. The rhomb has been used in the CO2 laser heterodyne detection system, and the transfer efficiency is more than 93 %.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1992年第3期265-268,共4页
Acta Optica Sinica
关键词
光隔离
位相推迟器
相干激光雷达
light isolation, coherent laser radar, phase retarder.
