激光二极管端面抽运高偏振比Nd∶YVO_4晶体微片绿光激光器  

A Laser Diode-Pumped Nd∶YVO_4 Crystal Micro-Chip Green Laser with High Polarization Ratio

作　　者：林海峰[1] 陈建林 熊飞兵[1] 

机构地区：[1]厦门理工学院数理系,福建厦门361024 [2]福建华科光电有限公司研发部,福建福州350014

出　　处：《中国激光》2010年第10期2441-2444,共4页Chinese Journal of Lasers

基　　金：福建省教育厅科技项目基金(JA09225)资助课题

摘　　要：报道了一种激光二极管(LD)抽运高偏振比腔内倍频全固态微片激光器,采用两光轴正交的Nd∶YVO4激光晶体作为增益介质,消除单块Nd∶YVO4晶体对输出绿光的退偏作用,获得高偏振度的绿光输出,同时各晶体之间采用光学胶合的方法,实现了微片绿光激光器。在1.8 W抽运功率下,获得了偏振比为110∶1,功率为336 mW的绿光输出,光-光转换效率为18.7%。该激光器结构简单、体积小、成本低,适合于大批量生产。A laser diode（LD）-pumped high polarization state intracavity frequency doubling all-solid green laser is reported.By using two optical axis orthogonal Nd∶YVO4 crystals to act as laser gain medium,eliminating the depolarization effect of single Nd∶YVO4 crystal,the high polarization green laser is obtained.And with optical contact between each crystal,the micro-chip green laser is realized.With the injection pump power of 1.8 W,336 mW TEM00 green laser at 532 nm is achieved,the light-light conversion efficiency is up to 18.7%,and the polarization rate is 110∶1.This laser has the advantages of being simple and easily attainable at a low cost,and it is suitable for batch production.

关 键 词：激光器 绿光微片激光器 高偏振比 光轴正交Nd∶YVO4晶体 光学胶合 

分 类 号：TN248.1[电子电信—物理电子学]