Effect of frequency doubling on beam quality and space distribution
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1.
Office of Laser Engineering Technology Research, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
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Corresponding author:
LIN Wen-xiong, wxlin@fjirsm.ac.cn
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Received Date:
2007-10-16
Accepted Date:
2008-06-02
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Abstract
For typical high order modes of Hermite-Gaussian beam,the effect of frequency doubling on beam quality factor and the space distribution was studied by means of calculation and experiments.The beam quality of the frequency doubled beam was deteriorated seriously with the beam quality of basic frequency reducing.The beam quality of the frequency doubled beam was invariant when the radius of the basic beam with the same beam quality was variant in the crystal surface.Green power of 49.5W was generated with a 15kHz repetition rate by intracavity frequency doubling of a diode-pumped Nd:YAG laser.The beam quality factor of the frequency doubled beam was 10.2 with the basic beam quality factor of M2=4.93.The result of experiment was the same with the theoretical calculation.
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References
|
[1]
|
XU D G,YAO J Q,GUO L,et al.104 W laser diode-pumped intracavity frequency-doubled Nd:YAG green light laser[J].Acts Optica Sinica,2004,24(7):925-928(in Chinese). |
|
[2]
|
JIANG D Sh,ZHAO H,WANG J J,et al.120W diode-pumpod green Nd:YAG laser[J].Hish Power Laser and Particle Beams,2005,17 (s0):7-10(in Chinese). |
|
[3]
|
JIANG D Sh,ZHAO H,WANG J J,et al.68W green-beam opomtion of a diode-pumped Nd:YAG rod laser[J].Chinese Journal of Lasers,2002,629(s1):102-104(in Chinese). |
|
[4]
|
YAO Zh Y,JIANG J F,TU B,et al.162W laser diode-pumped Nd:YAG intracavity-donbled laser[J].Chinese Journal of Lasers,2005,32(11):1459-1462(in Chinese). |
|
[5]
|
KONNO S,KOJIMA T,FUJIKAWA S,et al.High-brighmess 138W green laser based on an intracavity frequency-doubled diode-sidepumped Q-switched Nd:YAG laser[J].Opt Lett,2000,43(1):105-107. |
|
[6]
|
SHI Sh X,CHEN G F,ZHAO W,et al.Nonlinear optics[M].Xi'an:Xi'an Electron Scientific University Press,2003:132-139(in Chinese). |
|
[7]
|
NIU Y X,WANG Y F,LIU X,et al.Laser beam quality factor M2 and its measurement[J].Laser Technology,1999,23(1):38-41(in Chinese). |
|
[8]
|
LÜ B D.Laser optics[M].Chengdu:Sichuan University Press,1992:65-68(in Chinese). |
|
[9]
|
HODGSON N.Landoh-Börnstein-group Ⅷ advanced materials and technologies[M].Berlin:Springer Berlin Heidelberg,2006:194. |
|
[10]
|
UPADHYAYA B N,MISRA P,BANGANATHAN K,et al.Beam quality comiderations of high power Nd:YAG lasers[J].Optics Laser Technology,2002,34(3):193-197. |
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