提高运载火箭CCD激光瞄准仪准直精度及稳定性技术研究

Study to Raise the Collimation Systematic Precision and Stabilization of CCD Laser-collimator for Launch Vehicle

为解决半导体激光器光强分布不均,造成CCD激光瞄准仪准直精度下降、稳定性差以及不能适应目标棱镜平移从而影响运载火箭发射精度的问题,提出一种结构简单、制造方便的匀光技术,在激光器输出端通过一组正负透镜,将半导体激光器出射光斑较均匀的中心部分予以放大、聚焦,形成一个光强均匀的圆形光斑。结果表明,该研究为提高激光瞄准仪准直精度和稳定性以及对目标棱镜平移的适应性提供了有效方法。

The laser diode beam is the characteristic of Gaussian energy distribution. In order to overcome the influence of the collimator collimation systematic precision and stabilization of laser-collimator by the in the process of rocket launch, a simple structure and easy fabricating technology for beam homogenization is put forward. Positive lens and negative lens are added on outlet of laser diode. The centrality of laser beam is expanded and focused. The laser beam must be shaped by optical systems to form a roughly circular laser spot. This research provides an effective way for the collimation systematic precision and stabilization of laser-collimator.