Some characteristics of main optical filters were analyzed, and the application of ultra-narrowband filter in laserillumination and laser guide star was discussed.
分析了几种主要滤光技术的特点，讨论了在超窄带滤光器在激光照明和激光导星信号探测中的应用。
2
The fundamental theories and structure of the active IR imaging system with laserillumination, the manufacturing techniques and technical parameters of laser sources were presented.
It will be used in the illumination system of high power semiconductor laser over a long infrared distance of 100 meters through adjusting an additional geometric optical lens.