Fourier Optical Research on Wide-Band Scanning Rotating Mirror of the High Power Laser
Junchang Li, Qiguang Zheng, Makun and Shihong Shi
A type of wide-band scanning rotating mirror of high power laser is discussed in detail by using scalar diffraction theory. The transient power distribution of the laser in any observed region has been investigated for the arbitrary laser beam passing through the optical system. Given the translation velocity and laser absorptivity of workpiece in the laser heat treatment, the distribution of energy absorbed by the surface of workpiece in a given time interval is investigated and the calculating example has been finished.