摘要
报道了一种激光二极管(LD)端面泵浦10at%掺杂Yb:YAG激光晶体(4×4×1mm)和Ⅰ类临界相位匹配LBO的腔内倍频全固态绿光激光器.为了克服"绿光问题",采用了两个激光二极管偏振耦合系统.在双路泵浦功率为1.2W时,获得最高功率为40mW525nm的连续基模激光输出.在腔内插入Cr4+:YAG饱和吸收体被动调Q,在泵浦功率为1.2W时,可以获得平均功率为5.2mW,脉冲重复频率为2.44kHz,脉冲宽度为51.5ns,峰值功率为41.7W的515nm脉冲激光输出.输出波长发生变化,而且515nm脉冲激光输出的阈值仅为728mW.
A laser diode end-pumped 10at% doped Yb ： YAG microchip crystal intracavity frequency doubled all solid-stated green laser was reported. In order to overcome the problem of green problem of SHG,two polarization-coupled laser diodes system were used. With the pump power of 1.2 W, 40 mW TEM00 continuous wave laser at 525 nm was obtained,and the optical conversion efficiency is 3.3%. When inserting Cr^4＋ ：YAG crystal with 98% low-power transmission in the resonator, the maximum output power of 5.2 roW,pulse duration width of 51.5 ns,the pulse repetition rate of 2.44 kHz and the peak power of 41.7 W at 515 nm were achieved when the pump power was 1.2 W. The wavelength was changed from 525nm to 515nm and the threshold was only 728 mW.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2009年第1期22-25,共4页
Acta Photonica Sinica
