Experimental study of partially end-pumped Nd：YVO4 slab laser with hybrid resonator operation
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1.
College of Physics, China University of Petroleum(huadong), Dongying 257061, China;
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2.
Shanghai Institute of Optic and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
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Received Date:
2007-02-02
Accepted Date:
2007-04-02
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Abstract
To attain high power laser with high beam quality,experiments were performed for partially end-pumped Nd:YVO4 slab laser.With the help of a self-assembly 5bar LD array stack and the wave-guide beam reshaping system,the pumped light was coupled into slab crystal.38W CW laser beam was attained with hybrid resonator operation when pumped power was 134W,and the slope efficiency was 44%.When the output laser power was 38W,M2 value in unstable resonator direction was 1.56,and M2 value in stable resonator direction was 1.78.The experimental results indicated that high power laser could be attained with high beam quality,concerning with good thermal effect.The input-output power curve was not flat-topping and reflexed.The experiment results indicated that this laser could be improved more.
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References
|
[1]
|
ZOU J,ZHAO Sh Zh,YANG K J,et al.Determining the thermal lens focus of LD end-pumped Nd:GdVO4 solid-state laser with CCD detecting method[J].Laser Technology,2006,30(4):422-428(in Chinese). |
|
[2]
|
DU K M,WU N L,XU J D,et al.Partially end-pumped Nd:YAG slab laser with a hybrid resonator[J].Opt Lett,1998,23(5):370-372. |
|
[3]
|
SHI P,LI D J,ZHANG H L,et al.An 110W Nd:YVO4 slab laser with high beam quality output[J].Opt Commum,2004,229:349-354. |
|
[4]
|
SHI P,LI D J,ZHANG H L,et al.High power partially end-pumped slab laser with hybrid resonator[J].Acta Optica Sinica,2004,24(4):491-494(in Chinese). |
|
[5]
|
DU K M,LI D J,ZHANG H L,et al.Robert diart,electro-optically Q -switched Nd:YVO4 slab laser with a high repetition rate and a short pulse width[J].Opt Lett,2003,28(2):87-89. |
|
[6]
|
ZHANG H L,SHI P,LI D J,et al.Diode-end-pumped,electro-optically Q-switched Nd:YVO4 slab laser and its second-harmonic generation[J].Appl Opt,2003,42(9):1681-1684. |
|
[7]
|
WANG N,LU Y T.Partially end-pumped Nd:YVO4 slab solid state laser[J].Chinese Jounal of Lasers,2006,33(10):1319-1323(in Chinese). |
|
[8]
|
WANG Sh Y,GUO Zh,FU J M,et al.Effect of the pump light on the beam quality of the diode pumped laser[J].Acta Physica Sinica,2004,53(9):2995-3003(in Chinese). |
|
[9]
|
LUO Sh R,LÜ B D,HUANG L,et al.The far-field intensity distribution and beam quality of unstable resonators[J].Laser Technology,1999,23(5):281-284(in Chinese). |
|
[10]
|
GAO W.Definition of laser beam quality M2 factor[J].Acta Photonica Sinica,2003,32(9):1038-1040(in Chinese). |
|
[11]
|
DU X W.Factors for evaluating beam quality of a real high power laser on the target surface in far field[J].Chinese Journal of Lasers,1997,24(4):327-332(in Chinese). |
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