Double-end-pumped double Nd：YVO4 crystals continuous green laser
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XIE Hui-ming1,2,
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CHEN Hao-wei2,
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JIA Sen2,
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LI Li-sha1,
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LI Long2,
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ZHAO Yun-qing2,
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BAI Jin-tao2, , ,
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HOU Xun2
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1.
Department of Physics, Northwest University, Xi'an 710069, China;
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2.
Provincial Key Laboratory of Photoelectronic Technology, Institute of Photonics and Photo-technology, Northwest University, Xi'an 710069, China
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Corresponding author:
BAI Jin-tao, baijt@nwu.edu.cn
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Received Date:
2005-10-27
Accepted Date:
2005-12-12
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Abstract
In order to improve the output power and the optical-optical conversion efficiency of a laser diode pumped all-solid-state laser,a double Nd:YVO4 crystals green laser was designed.Through investigation of temperature field distribution in laser crystal and based on the transmission matrixes,the stable condition of cavity influenced by the thermal lens effects of double laser crystals was analyzed and a folded cavity of double-end-pumped double Nd:YVO4 crystals was introduced.In double-ends-pumped double Nd:YVO4 crystals green laser system,Ⅰ-type noncritical phase matching LBO crystal was used as intracavity doubling frequency.When the pump power of two diode lasers was 26.56W,the 5.5W CW 532nm green laser was got and the optical-optical conversion efficiency reached up to 20.7%.The result shows that the double laser gain mediums inserted in cavity can not only improve the optical-optical conversion efficiency of laser,but also enhance the resonant stability through the interaction of two laser crystals' thermal lens effect.
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References
|
[1]
|
FAN T Y,BYER R L.Diode laser-pumped solid-state lasers[J].IEEE J Q E,1988,24(6):895～912. |
|
[2]
|
FIELD R A,BIRNBAUM M,FINCHER C L.Highly efficient Nd:YVO4 diode-laser end-pumped laser[J].Appl Opt Lett,1987,51(23):1885～1886. |
|
[3]
|
CHEN Y F,LAN Y P,WANG S C.Efficient high-power diode-endpumped TEM00 Nd:YVO4 laser with a planar cavity[J].Opt Lett,2000,25(14),1016～1018. |
|
[4]
|
DRIEDGER K P,IFFLANDER R M,WEBER H.Muti-rod,Reso-nators for high-power solid-state lasers with improved beam quality[J].IEEE J Q E,1988,24(4):665～6742. |
|
[5]
|
YANG Sh Y,WANG Zh J,HOU Y B et al.Analyses of three-rod resonator for Nd:YAG laser[J].Laser Journal,1999,20 (4):50～52(in Chinese). |
|
[6]
|
LI Zh J,XIA W J,ZHU Ch H et al.Study on the dynamic mode matching of multirod solid state lasers[J].Laser Technology,1998,22(5):284～286 (in Chinese). |
|
[7]
|
INNOCENZI M E,YURA H T,FRUCHER C L et al.Thermal modeling of continuous-wave end-pumped solid state lasers[J].A P L,1990,56(19):1831～1833. |
|
[8]
|
YU J.Theoretical study on thermal beam focusing in longitudinallypumped solid-state laser rods[J].High Power Laser And Particle Beams,2000,12(1):27～31 (in Chinese). |
|
[9]
|
SHI P,LI L,GANG A Sh et al.Thermal effect rssearch of Nd3+ doped laser crystals in end-pumped all-solid-state lasers[J].Laser Technology,2004,28(2):177～180(in Chinese). |
|
[10]
|
HE J L,HOU W,ZHANG H L et al.Continuous-wave output of 5.5 W 532 nm by intracavity frequency doubling of an Nd:YVO4 laser[J].Chinese Physics Letters,1998,15(6):418～419. |
|
[11]
|
HOU X Y,LI Y F,SUN Y M et al.The dynamic measurement of the thermal focal distances[J].Journal of Optoelectronics · Laser,1999,10(3):276～277(in Chinese). |
|
[12]
|
LI L,ZHAO Zh M,ZHANG W et al.Research of high power endpumped Nd:YVO4/LBO green laser[J].Journal of Xi'an Jiaotong University,2003,37(6):642～645(in Chinese). |
|
[13]
|
LI L,ZHANG W,TIAN L K et al.Influence cavity stability of thermal effect in end-pumped double Nd:YVO4 laser[J].Acta Photonica Sinica,2004,33 (1):4～7 (in Chinese). |
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