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Proceedings Paper

Influence of soft bonding layer material viscoplasticity on thermal lens and aspherical aberration of high-power thin disk laser
Author(s): Mu Wang; Guangzhi Zhu; Xiao Zhu; Yufan Feng; Jiapeng Gao
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Paper Abstract

An numerical model considering solder viscoplasticity is developed to analyze the thermal deformation of laser disk with indium bonded. The characteristic of soft bonding material is described using Anand viscoplasticity model. The Finite Element Method analytical results show that the back surface of laser disk with pumping will deform more significantly with time and finally be steady. Correspondingly the refraction power increase gradually and diffraction loss induced by aspherical aberration decrease gradually. Futhermore when pump spot is larger the refraction power and aspherical aberration will change more due to solder viscoplasticity.

Paper Details

Date Published: 9 November 2016
PDF: 6 pages
Proc. SPIE 10016, High-Power Lasers and Applications VIII, 1001620 (9 November 2016); doi: 10.1117/12.2248734
Show Author Affiliations
Mu Wang, Huazhong Univ. of Science and Technology (China)
National Engineering Research Ctr. for Laser Processing (China)
Guangzhi Zhu, Huazhong Univ. of Science and Technology (China)
National Engineering Research Ctr. for Laser Processing (China)
Xiao Zhu, Huazhong Univ. of Science and Technology (China)
National Engineering Research Ctr. for Laser Processing (China)
Yufan Feng, Huazhong Univ. of Science and Technology (China)
National Engineering Research Ctr. for Laser Processing (China)
Jiapeng Gao, Huazhong Univ. of Science and Technology (China)
National Engineering Research Ctr. for Laser Processing (China)


Published in SPIE Proceedings Vol. 10016:
High-Power Lasers and Applications VIII
Ruxin Li; Upendra N. Singh; Robert F. Walter, Editor(s)

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