%A Yuchen SONG, Yunfeng CHEN, Jianguo XIN, Teng SUN %T Two-dimensional beam shaping and homogenization of high power laser diode stack with rectangular waveguide %0 Journal Article %D 2019 %J Front. Optoelectron. %J Frontiers of Optoelectronics %@ 2095-2759 %R 10.1007/s12200-018-0831-z %P 311-316 %V 12 %N 3 %U {https://journal.hep.com.cn/foe/EN/10.1007/s12200-018-0831-z %8 2019-09-15 %X

In this paper, the research work of two-dimensional beam shaping and homogenization of high power laser diode (LD) stack by a rectangular waveguide is presented. Both the theoretical simulation and experiment results have shown that the diode stack beam can be shaped into a uniform square spot with a dimension of 10 mm × 10 mm and the non-uniformity less than 5% along both directions of slow axis and fast axis, the shaped beam has a uniform pumping depth over 10 mm, which is well to be used for a rectangular laser medium end pumping.