Chinese Optics Letters, 2009, 7 (6): 06458, Published Online: Jun. 8, 2009
Influence of laser mode on splitting beam illumination effect of Dammann grating Download: 717次
衍射光学 衍射光栅 激光束整形 050.1970 Diffractive optics 050.1950 Diffraction gratings 140.3300 Laser beam shaping
Abstract
The influences of various laser modes on the splitting beam effect of Dammann grating are studied in theory and by numerical simulation. The results show that fundamental mode laser resembles plane wave while high order mode laser differs from plane wave in the splitting beam effect by Dammann grating. Therefore, the fundamental mode laser is more suitable to be the light source to improve the energy efficiency in far-distance image detecting systems, such as laser image ladar, which use Dammann grating in the illumination system.
Liping Liu, Ye Tian, Xiudong Sun, Yuan Zhao, Yong Zhang, Chenfei Jin. Influence of laser mode on splitting beam illumination effect of Dammann grating[J]. Chinese Optics Letters, 2009, 7(6): 06458.