Design and Development of a High-Performance LED-Side-Pumped Nd:YAG Rod Laser  

作　　者：Jianping Shen Xin Huang Songtao Jiang Rongrong Jiang Huiyin Wang Peng Lu Shaocong Xu Mingyu Jiao 沈建平;黄鑫;江颂涛;江容容;王慧寅;芦鹏;徐少聪;焦鸣宇(College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China)

机构地区：[1]College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China

出　　处：《Chinese Physics Letters》2022年第10期22-25,共4页中国物理快报（英文版）

基　　金：supported by Nanjing University of Posts and Telecommunications Foundation(Grant Nos.JUH219002 and JUH219007);Key Laboratory of Functional Crystals and Laser Technology,TIPC,CAS Foundation(Grant No.FCLT 202201).

摘　　要：We present a design and development of a high-performance light-emitting diode(LED)-side-pumped Nd:YAG rod laser with strong pulse energy,high efficiency,and consistency,very good beam quality,and high uniform pumping intensity in the active area which reduces the effects of thermal gradient significantly.A five-dimensional 810 nm LED array with a full width of 30 nm at half maximum was intended to achieve high coupling efficiency by putting the LED array as close as possible to the side of the Nd:YAG laser rod for overcoming the large pumped divergence.Under 2.25 J pump energy,maximum single pulse energy of 35.86 mJ with duration of 1.24μs at 1063.68 nm was obtained,equivalent to optical efficiency of 1.59%and a slope efficiency of 2.53%.The laser was set to repeat at a rate of 10 Hz with a beam quality factor of𝑀M^(2)_(x)=2.94 and𝑀M^(2)_(y)=3.35,as well as with the output power stability of<4.1%(root mean square)and<7.3%(peak to peak).To the best of our ability,this is the highest performance for an LED-side-pumped Nd:YAG rod laser oscillator with a 10-mJ-level output ever reported.

关 键 词：PUMPED PUMPING PUMP 

分 类 号：TN248[电子电信—物理电子学]