Semi-analytical thermal analysis of double-end-pumped Nd：YVO4 crystal

SHI Peng; LI Long; GAN An-sheng; LI Don g-liang; BAI Jin-tao

Through LD double-end-pumped Nd:YVO4 laser crystal working character analysis,laser crystal thermal model and boundary condition according with practical working condition are built.Laser crystal interior temperature field and end-face thermal distortion field calculation equations are obtained by semi-analytical thermal analysis method,simultaneity all kinds of parameters affecting laser crystal temperature field distribution are all analyzed.All research results can be generalized to other laser crystals,and these research will be theoretically established for further research to effectively resolve laser-diode end-pumped laser system's thermal effect problem.

1. Faculty of Science, Xi'an University of Architecture & Technology, Xi'an 710055, China;

2. Shanxi Province Key Laboratory of Photonics Technology for Information, School of Electronic & Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China;

3. Shanxi Provincial Key Laboratory of Photo-electronic Technology, Institute of Photonics&Phto-Technology, Northwest University, Xi'an 710069, China

Received Date: 2003-10-27

Accepted Date: 2003-11-13

Available Online: 2004-11-25

Abstract: Through LD double-end-pumped Nd:YVO4 laser crystal working character analysis,laser crystal thermal model and boundary condition according with practical working condition are built.Laser crystal interior temperature field and end-face thermal distortion field calculation equations are obtained by semi-analytical thermal analysis method,simultaneity all kinds of parameters affecting laser crystal temperature field distribution are all analyzed.All research results can be generalized to other laser crystals,and these research will be theoretically established for further research to effectively resolve laser-diode end-pumped laser system's thermal effect problem.

HTML

Reference (15)

[1]	FAN T Y,BYER R L.Diode laser-pumped solid-state lasers[J].IEEE J Q E,1988,24(6):895～912.
[2]	AGNESI A,REALI G C,GOBBI P G.430mW single-transverse-mode diode-pumped Nd:YVO4 laser at 671nm[J].IEEE J Q E,1998,34(7):1297～1300.
[3]	FIELDS R A,BIRNBAUM M,FICHER C L.High efficiency Nd:YVO4 diode-laser end-pumped laser[J].A P L,1987,51(23):1885～1886.
[4]	COUSINS A K.Temperature and thermal stress scaling in finite-length end-pumped laser rods[J].IEEE J Q E,1991,28(4):1057～1069.
[5]	刘均海.高功率端面泵浦Nd:YVO4,Nd:GdVO4激光器热效应及激光特性研究[D].济南:山东大学,1999.3～4.
[6]	CHEN Y F,HUANG T M,KAO C F et al.Optimization in scaling fiber-coupled laser-diode end-pumped lasers to higher power:influence of thermal effects[J].IEEE J Q E,1997,33(8):1424～1429.
[7]	BAI J T,CHEN G F.Continuous-wave diode-laser-end-pumpedNd:YVO4/KTP high-power solid state green laser[J].Optic Laser Technology,2002,34:333～336.
[8]	INNOCENZI M E,YURA H T,FRUCHER C L et al.Thermalmodeling of continuous-wave end-pumped solid state lasers[J].A P L,1990,56(19):1831～1833.
[9]	余锦.纵向泵浦固体激光介质热透镜效应的理论研究[J].强激光与粒子束,2000,12 (1) :27～31.
[10]	FARRUCH U O,BUOCRISTIANI A M,BYVIK C E.An analysis of the temperature distribution in finite solid-state laser rods[J].IEEE J Q E,1988,24(11):2253～2264.
[11]	BROWN D C,NELSON R,BILLINGS L.Efficient CW end-pumped,end-cooled Nd:YVO4 diode-pumped laser[J].A P L,1997,36(33):8611～8613.
[12]	SASAKI T,KOJIMA T,YOKOTANI A et al.Single long-itudinal mode operation and second harmonic generation of Nd:YVO4 microchip lasers[J].Opt Lett,1991,16(21):1665～1667.
[13]	SHEN D,LIU A,SONG J et al.Efficient operation of an intracavity-doubled Nd:YVO4 / KTP laser end pumped by a high-brightness laser[J].Appl Opt,1998,37:7785～7788.
[14]	HE J L,HOU W,ZHANG H L et al.Continuous-wave output of 5.5Wat 532nm by intracavity frequency doubling of an Nd:YVO4 laser[J].Chin Phys Lett,1998,15(6):418～419.
[15]	刘均海,吕军华,卢建仁 et al.高功率端面抽运Nd:YVO4固体激光器模式匹配的研究[J].光学学报,2000,20(2):186～189.

Semi-analytical thermal analysis of double-end-pumped Nd：YVO4 crystal

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views