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Thermal lensing study based on the heat transfer of diode-pumped Yb3+:Y2SiO5 lasers

Published online by Cambridge University Press:  13 April 2011

R. Niu ,
C. Lu ,
D. Wu ,
X. Fan ,
C. Liu ,
J. Liu ,
L. Zheng ,
L. Su  and
J. Xu
R. Niu
Affiliation:
Shandong Provincial Key Laboratory of Optics and Photonic Devices, College of Physics and Electronics, Shandong Normal University, Jinan, 250014, P.R. China
C. Lu
Affiliation:
Shandong Provincial Key Laboratory of Optics and Photonic Devices, College of Physics and Electronics, Shandong Normal University, Jinan, 250014, P.R. China
D. Wu
Affiliation:
Shandong Provincial Key Laboratory of Optics and Photonic Devices, College of Physics and Electronics, Shandong Normal University, Jinan, 250014, P.R. China
X. Fan
Affiliation:
Shandong Provincial Key Laboratory of Optics and Photonic Devices, College of Physics and Electronics, Shandong Normal University, Jinan, 250014, P.R. China
C. Liu
Affiliation:
Shandong Provincial Key Laboratory of Optics and Photonic Devices, College of Physics and Electronics, Shandong Normal University, Jinan, 250014, P.R. China
J. Liu*
Affiliation:
Shandong Provincial Key Laboratory of Optics and Photonic Devices, College of Physics and Electronics, Shandong Normal University, Jinan, 250014, P.R. China
L. Zheng
Affiliation:
Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, P.R. China
L. Su
Affiliation:
Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, P.R. China
J. Xu
Affiliation:
Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, P.R. China
*
[email protected]
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Abstract

Based on the features of diode-pumped Yb3+:Y2SiO5 (Yb:YSO) lasers, a thermal model was established. According to the latest reports and measurements on thermal parameters, and further considering the heat transfer on side surface, thermal lensing effect of Yb:YSO was studied for the first time to our knowledge. Under the pump power of 17 W, the maximum temperature (488.4 °C) and the maximum distortion (1.24 μm) were obtained by solving Poisson equation using finite difference method. Moreover, thermal lens focal length was measured through a plane-plane cavity. All the results demonstrate that the theoretical result will be closer to the reality if we take the heat transfer on side surfaces into account.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 54 , Issue 1 , April 2011 , 10103
Copyright
© EDP Sciences, 2011

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