RT Journal T1 Two-dimensional beam shaping and homogenization of high power laser diode stack with rectangular waveguide A1 Yuchen SONG, Yunfeng CHEN, Jianguo XIN, Teng SUN PB Front. Optoelectron. FD 2019-09-15 YR 2019 JF Frontiers of Optoelectronics JO Front. Optoelectron. VO 12 IS 3 SP 311 DO 10.1007/s12200-018-0831-z K1 beam shaping;high power laser diode (LD) stack;laser end pumping LK {https://journal.hep.com.cn/foe/EN/article/article_22847.shtml}