光学学报, 2016, 36 (7): 0722003, 网络出版: 2016-07-08   

基于偏转平移光路的激光束方位自动校准方法及系统

Automatic Calibration Method and System of Laser Beam Orientation Based on Deflection and Translation of Optical Paths
作者单位
广州大学物理与电子工程学院, 广东 广州 510006
摘要
提出了一种基于偏转平移光路的激光束方位校准方法,采用转动与平动相结合的控制机构对激光束进行反馈偏移调节,以实现光路的自动校准及光束方位的稳定性控制。采用两个探测器对光束的方向和位置进行检测,通过简单的校准光路设计,在水平和竖直方向上实现了对光束角度偏移和平行偏移的反馈式分离调节,避免了调节过程中不同偏移量之间的耦合影响。引入的平行偏移控制对光传输距离不敏感,因而有利于提高调节的稳定性和精确性。进一步介绍了基于该方法搭建的光束校准系统,实验结果表明该系统能够实现预期的校准效果。
Abstract
A new method of laser beam orientation calibration based on deflection and translation of optical path is proposed. In order to realize automatic calibration of optical path and stable control of laser beam orientation, a control mechanism with a combination of rotation and translation is adopted to carry out feedback deviation adjustment of laser beams. Two detectors are used to measure the direction and position of laser beams. Via a simple design of optical path calibration, the independent feedback adjustment of angular deviation and parallel deviation along the horizontal and vertical directions can be realized, and the coupling among different deviation in the adjustment process can be avoided. The introduced parallel deviation control is not sensitive to propagation distance, and therefore it is beneficial to enhancing the adjustment stability and accuracy. Moreover, the laser beam orientation calibration system based on this method is set up. The experimental results show that with this system the expected calibration effect can be achieved.

陈志峰, 黎达宇, 吴卓麒, 钟永贤, 谢龙豪, 邓荣标. 基于偏转平移光路的激光束方位自动校准方法及系统[J]. 光学学报, 2016, 36(7): 0722003. Chen Zhifeng, Li Dayu, Wu Zhuoqi, Zhong Yongxian, Xie Longhao, Deng Rongbiao. Automatic Calibration Method and System of Laser Beam Orientation Based on Deflection and Translation of Optical Paths[J]. Acta Optica Sinica, 2016, 36(7): 0722003.

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