Chinese Optics Letters, 2005, 3 (1): 0124, Published Online: Jun. 6, 2006
Study on improvement of the laser uniformity transformation of overlapping-image waveguide cavity
230.7370 waveguides 350.6980 transforms 140.3300 laser beam shaping 220.0220 optical design and fabrication
Abstract
After propagating through the overlapping-image integral mirror, the interference fringe is a major factor that affects the uniformity of the image plane. In this paper, a He-Ne laser is used as light source, and the complex amplitude of the incident laser beam is modulated by an alternating electric field controlled vibrating mirror that is placed before the optical system. The experimental results show that after propagating through the overlapping-image integral mirror, not only the contrast of the interference fringes on the image plane is depressed, but also the uniformity of the intensity distribution of the transformed light beam is improved. Finally, based on the experimental results, two optical systems that can be applied to high power laser uniformity transformation are presented.
Zebin Fan, Junchang Li, Chongguang Li, Kun Ma. Study on improvement of the laser uniformity transformation of overlapping-image waveguide cavity[J]. Chinese Optics Letters, 2005, 3(1): 0124.