Near-diffraction-limited passively Q-switched Yb:Y3Al5O12 ceramic lasers with peak power >150kW
Near-diffraction-limited passively Q-switched Yb:Y3Al5O12 ceramic lasers with peak power >150kW
复制标题
DOI：
10.1063/1.2717519
复制
发表时间：
2007-03
影响因子：
4
通讯作者：
J. Dong;A. Shirakawa;K. Ueda;H. Yagi;T. Yanagitani;A. Kaminskii
中科院分区：
文献类型：
--
作者：
J. Dong;A. Shirakawa;K. Ueda;H. Yagi;T. Yanagitani;A. Kaminskii
采用Cr ~（4+）：Y_3Al_5O_（12）陶瓷作为可饱和吸收体，实现了激光二极管泵浦的近衍射极限光束质量（M ~ 2 <1.05）、高峰功率、亚纳秒级Yb：Y_3Al_5O_（12）陶瓷被动调Q微型激光器。当Cr ~（4+）：Y_3Al_5O_（12）陶瓷的初始透过率为80%时，斜率效率高达36%。在重复频率为5 kHz时，脉冲宽度为335 ps，峰值功率超过150 kW。利用Cr ~（4+）：YAG薄板和玻璃薄板作为输出耦合器的标准具效应，激光器实现了单纵模振荡和宽间隔多模振荡。
Laser-diode pumped nearly diffraction-limited beam quality (M2<1.05), high peak power, subnanosecond passively Q-switched Yb:Y3Al5O12 ceramic miniature laser with Cr4+:Y3Al5O12 ceramic as saturable absorber has been achieved. The slope efficiency is as high as 36% for 80% initial transmission of Cr4+:Y3Al5O12 ceramic. The pulse width of 335ps and peak power of over 150kW at repetition rate of 5kHz were obtained. Laser oscillates at single-longitudinal-mode oscillation and wide-separated multilongitudinal-mode oscillation due to the combined etalon effect of the Cr4+:YAG thin plate and thin glass plate as output coupler.