Fabrication and Laser Behavior of Composite Yb:YAG Ceramic

Authors

  • Fei Tang,

    1. Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
    2. Graduate School of the Chinese Academy of Sciences, Beijing, China
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  • Yongge Cao,

    Corresponding author
    1. Department of Physics, Renmin University of China, Beijing, China
    Current affiliation:
    1. Fuzhou, China
    • Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
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  • Jiquan Huang,

    1. Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
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  • Huagang Liu,

    1. Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
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  • Wang Guo,

    1. Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
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  • Wenchao Wang

    1. Department of Physics, Renmin University of China, Beijing, China
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  • This work was financially supported by the Key Program in Major Research Plan of National Natural Science Foundation of China (91022035), Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences, “Hundred Talents Program” of the Chinese Academy of Sciences, and National High-tech R&D Program of China (863 Program).

Author to whom correspondence should be addressed. e-mail: caoyongge@fjirsm.ac.cn.

Abstract

Fifteen layers’ composite YAG/Yb:YAG/YAG laser ceramic with grain size of about 5 μm was fabricated through tape casting process together with vacuum sintering technology, and its microstructure, optical properties, and laser performance were investigated. The experimental results showed that annealing in oxygen atmosphere could remove the lattice distortion and improve the optical transmittance. The in-line transmittance was 83% at 800 nm. The laser study indicated that the threshold pump power was 5.5 W with output coupler transmission of 6% and slope efficiency achieved 12%. The maximum output power of 0.53 W was achieved at the absorbed pump power of 10 W.

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