CW-COIL激光束漂移和光斑的诊断
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摘要: 利用光斑动态分析仪测试技术,对连续波氧碘化学激光器输出的光束不稳定性进行定量诊断,其中包括光束的漂移、低频抖动、光强分布、光斑直径随时间的变化等内容,并初步分析了激光输出不稳定的原因。诊断的结果为激光器的稳定输出及激光—材料实验研究提供了依据。Abstract: A dynamic spot diagnostic system has been developed to quantitatively measure the instability of a Continuous-Wave Chemical Oxygen Iodine Laser(CW-COIL). The system can measure the real time changes in drift, vibration of low frequency, intensity profile and spot diameter for the CW-COIL laser beam. The cause that induces the instability of laser beam was tentatively analyzed in this paper. The experimental results provided a basis for improving the COIL laser and for studying the laser-material interactions.
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Key words:
- continuous-wave chemical oxygen iodine laser /
- ccd
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