Influence of soft bonding layer material viscoplasticity on thermal lens and aspherical aberration of high-power thin disk laser

Mu Wang; Guangzhi Zhu; Xiao Zhu; Yufan Feng; Jiapeng Gao

doi:10.1117/12.2248734

9 November 2016 Influence of soft bonding layer material viscoplasticity on thermal lens and aspherical aberration of high-power thin disk laser

Mu Wang, Guangzhi Zhu, Xiao Zhu, Yufan Feng, Jiapeng Gao

Author Affiliations +

Proceedings Volume 10016, High-Power Lasers and Applications VIII; 1001620 (2016) https://doi.org/10.1117/12.2248734
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

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.

Citation Download Citation

Mu Wang, Guangzhi Zhu, Xiao Zhu, Yufan Feng, and Jiapeng Gao "Influence of soft bonding layer material viscoplasticity on thermal lens and aspherical aberration of high-power thin disk laser", Proc. SPIE 10016, High-Power Lasers and Applications VIII, 1001620 (9 November 2016); https://doi.org/10.1117/12.2248734

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