摘要
2.7~3.0μm激光器在医疗、军事等方面具有重要的应用价值,本文简单分析了Er∶YSGG晶体的能级结构以及激光特性,重点描述了采用968 nm LD泵浦Er∶YSGG晶体产生2.79μm激光,在500 Hz的泵浦频率下获得最高功率14.3 W的2.79μm激光输出,光光转换效率达到7.1%,斜效率达到11%,同时采用二氧化碲(TeO 2)作为Q开关,实现10 W的脉冲输出,动静比达到70%,脉冲宽度63.18 ns,这对于2.79μm激光在中长波激光器中的应用具有重要意义。
2.7~3.0μm laser has important application value in medical and military fields.In this paper,the structure of energy level and the laser characteristics of Er∶YSGG crystal were briefly analyzed,and the 2.79μm laser produced by Er∶YSGG crystal pumped by 968 nm LD is emphatically described.The laser has the maximum output power of 14.3 W at the pump frequency of 500 Hz,the optical to optical conversion efficiency reached 7.1%and the slant efficiency reached 11%.Meanwhile,tellurium dioxide(TeO 2)is used as Q switch to realize the pulse output of 10 W,the activity ratio reaches 70%,and the pulse-width is 63.18 ns,which is of great significance for the application of 2.79μm laser in medium and long wave lasers.
作者
陈国
冯江
李宝
赵书云
苑利钢
魏磊
CHEN Guo;FENG Jiang;LI Bao;ZHAO Shu-yun;YUAN Li-gang;WEI Lei(Key Laboratory of Solid-State Laser Technology,Beijing 100115,China)
出处
《激光与红外》
CAS
CSCD
北大核心
2019年第8期956-960,共5页
Laser & Infrared
