ZHANG Fei,XU Xin-hang,CHEN Chang-bo.Development of monitoring device for laser direction with small volume and long focus[J].Optics and Precision Engineering,2021,29(06):1251-1259.
ZHANG Fei,XU Xin-hang,CHEN Chang-bo.Development of monitoring device for laser direction with small volume and long focus[J].Optics and Precision Engineering,2021,29(06):1251-1259. DOI: 10.37188/OPE.20212906.1251.
Development of monitoring device for laser direction with small volume and long focus
To accurately combine and launch several visible laser beam with different wavelengths, a compact optical monitoring device for beam direction was designed. First, main performances of the monitoring device were measured based on the application requirement of combining and launching laser systems. Subsequently, photo detect, optical system, and mechanism structure of the monitoring device were selected or designed using the application space of device. The length of the monitoring device was compressed considerably using the six times folding beams and upper and lower layered optical path. Finally, the monitoring device was tested for focal, modulation transfer function (MTF), and monitoring accuracy by conducting experiments after carefully manufacturing, assembling, and adjusting. The results show that the designed monitoring device with low volume (200 mm×180 mm×140 mm), long focus (approximately 1 002 mm), and high monitoring accuracy (more than 10.0 μrad) can satisfy the application requirements of combining and launching laser systems.
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