LD端面抽运c切Nd:YVO_4自拉曼倍频589nm黄光激光研究  

LD end-pumped c-cut Nd:YVO-4 laser at 589 nm generated by sef-Raman conversion and frequency doubling

作　　者：朱海永[1,2] 张戈[2] 张耀举[1] 黄呈辉[2] 段延敏[2] 魏勇[2] 尉鹏飞[1] 于永丽[1] 

机构地区：[1]温州大学物理与电子信息工程学院,温州325035 [2]中国科学院福建物质结构研究所光电材料化学与物理重点实验室,福州350002

出　　处：《物理学报》2011年第9期373-377,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10904143);中国科学院光电材料化学与物理重点实验室开发课题(批准号:2008DP173016)资助的课题~~

摘　　要：报道了LD端面抽运c切Nd:YVO4自拉曼倍频黄光激光器的研究.采用10mm长,二类临界相位匹配角(θ=69°,=0°)切割的KTP晶体作为倍频晶体.考虑到c切Nd:YVO4跃迁截面较小,所以通过对谐振腔及晶体膜系的严格设计,减少腔内插入损耗和衍射损耗.最终在脉冲重复率为10kHz,抽运功率为11.2W下,获得了最高570mW的倍频黄光激光输出,对应抽运光到倍频黄光的转化效率约为5.1%,拟合得到输出功率对应抽运功率的斜效率为6.6%.激光中心波长在589.17nm,谱线宽度0.2nm,与钠D2共振谱线符合较好.In this paper we report a LD end-pumped c-cut Nd：YVO4 yellow laser generated by sef-Raman conversion and frequency doubling. A 10-mm-length KTP with critical phase matching （θ=69°, =0°） cut is adopted as a second-harmonic generation. For the lower stimulated-emission cross section of c-cut Nd：YVO4 crystal, the resonator cavity and the coating of crystals are carefully designed to reduce the insert loss and diffraction loss. Finally, at a repetition rate of 10 kHz and an incident pump power of 11.2 W, the average power of yellow light up to 570 mW is achieved, corresponding to an overall diode-yellow conversion efficiency of 5.1% and a slope efficiency of 6.6%. The central wavelength is at 589.17 nm with a width of 0.2 nm, which is well fitted to the sodium D2 resonance radiation.

关 键 词：拉曼激光 c切Nd:YVO4 589nm 黄光激光 

分 类 号：TN248[电子电信—物理电子学]