LD端面泵浦折叠腔Nd:YVO4/LBO激光器

LD End-pumped Folded Cavity Nd:YVO_4/LBO Laser

对端面泵浦Nd∶YVO4 构成的四镜Z型折叠腔结构进行了理论研究 ,合理调整谐振腔的参量关系 ,使谐振腔能够适应不同泵浦功率下激光晶体热焦距的变化 ,同时所设计的折叠腔还具有腔参量调整灵活等特点 以LBO晶体为倍频晶体 ,采用Ⅰ类角度调节位相匹配技术 ,在双端泵浦光功率为 2 6W时 ,成功地获得了 4W稳定的连续绿光输出 Nd∶YVO4 /LBO绿光激光器输出为 4W时的稳定性为 1.3% ,其光 光转换效率达到 13%

End pumped Nd∶YVO 4 four mirror formed fold cavity structure is researched, rational resonant parameters have been designed and optimized .The designed fold cavity has furthest fit in with laser crystal′s different thermal focal length, at the same time the cavity has other characteristic, such as resonant parameters adjusted flexibly. Nonlinear optical crystal LBO is used as intracavity double frequency crystal, with I type angle tuning of phase match, at double ends 26 W pumped power, stable continuous wave output of 4W at 532 nm green laser is obtained. At output of 4W Nd∶YVO 4/LBO laser′s stability is 1.3%, and the optical optical conversion efficiency is 13%.