报道了蓝光激光二极管(ld)(中心波长约为444nM)单端纵向抽运掺镨氟化钇锂(Pr3+:ylf)的红光(640nM)和绿光(522nM)激光器。用单个棱镜作为抽运光束整形器,实验中红光最高输出功率为308.5MW,其相应的抽运阈值功率为46MW,斜率效率为47.5%;绿光这三个指标的值相应分别为193.4MW、162.3MW和37.1%。结果表明抽运光的整形提升了红、绿光的输出特性。Red(640 nm)and green(522 nm)lasers with Pr3+:YLF pumped by a blue laser diode emitting at about 444 nm in the longitudinal direction are reported.On the basis of the beam reshaping of the pump spot by aprism,the maximum output power,absorbed threshold pump power and slope efficiency of the red laser are 308.5 mW,46 mW and 47.5%,respectively.The three corresponding parameter values for green laser are 193.4 mW,162.3 mW and 37.1%,respectively.The results show that the shaped pump beam is beneficial to improve the output characteristics of these two visible laser emissions.国家自然科学基金(61275050); 博士点基金(20120121110034); 厦门市科技项目(3502Z20113004
