The testing method of horizontal error of the beam in laser swinger is expounded in this paper, in which the horizontal error of beam in characteristic direction, its testing steps, and the method of data processing are presented.

A fiber optic displacement sensor based on the principle of collimated beam reflective intensity modulation is constructed.

Theory of surface thermal lens signal in optical coating with cw modulated top-hat beam excitation;

A series of research is carried out on the key technologies of digital close range industrial photogrammetry,such as the basic measurement theory,center sub-pixel localization of targets,self-calibration of digital camera,automatic image points\' match and bundle adjustment algorithms.

Then camera self-calibration was applied by using the bundle adjustment algorithm to optimize the initial values.

The initialize calibration result by Zhang Zhengyou calibration arithmetic is optimized by bundle adjustment of the digital close range industry photogrammetry.

The spectral propagation equation of flat-topped beams propagating through atmospheric turbulence is derived by using the quadratic approximation of the Rytov s phase structure function.

The coherent combination of multi-Hermite-Gaussian beams is proposed to describe the flat-topped beams.