新型分步合成法制备的P567固态染料可调谐激光器

采用分步合成方法制备激光染料P567掺杂有机改性凝胶玻璃。利用调QNd:YAG激光器倍频光(532nm)纵向泵浦固态染料,通过光栅调谐,得到了调谐范围超过30nm(553nm～585nm)、最高斜效率9.7%的线偏振激光输出。输出波长为574nm时,脉宽为4ns,线宽0.014nm。实验中还获得了7nm(FWHM)的宽带激光输出,斜效率为69%。在2Hz,0.1J/cm2的532nm激光泵浦下,38000个脉冲后,输出能量降到初始输出的50%。

Tunable solid-state dye laser with P567 doped sample made by novel stepwise synthesis technique

The solid dye samples used in our experiment is made by a stepwise synthesis technique through a sol gel process.Laser dye doped in the sample is pyrromethene 567.Longitudinally pumped tunable solid state dye lasers with intra cavity grating are established with Q-switched frequency doubled Nd:YAG laser pumping source.The slope efficiency of 9.7% and tunable range over 30nm(from 553nm～585nm) has been achieved.The pulse width is 4ns and the spectrum width is 0.014nm at 574nm wavelength.The laser output broad band of 7nm(FWHM) and 69% slope efficiency are also obtained in the experiment.With 0.1J/cm² pump fluency and 2Hz repetition rate,the output energy decreases to 50% of initial value after 38000 shots.