Laser beamshifting, power stability and intensity distribution symmetry of laser spots are the main parameters affecting collimation accuracy.
激光光束的漂移,功率稳定性和激光光斑的强度分布对称性是影响准直精度的主要参数。
2
The frequency shifting and beam deflection of the Bragg acoustooptic interaction in cascade is analyzed according to general Bragg acoustooptic interaction theory.
The beamforming techniques used in narrowband systems are inadequate for wideband systems because they result in main-beam squinting and null shifting.