Fabrication and laser properties of transparent Yb:YAG ceramics

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• 作者：Dewei Luo^a ; Jian Zhang^b ; ^{JianZhang@ntu.edu.sg} ; Changwen Xu^a ; Xianpeng Qin^a ; ^c ; Dingyuan Tang^a ; Jan Ma^b
• 关键词：Yb ; YAG ceramics ; Laser properties ; Reactive sintering
• 刊名：Optical Materials
• 出版年：2012
• 期刊代码：81_09253467
• 类别：ch
• 出版时间：April, 2012
• 卷：34
• 期：6
• 页码：936-939
• 文件大小：709 K

摘要

High optical quality transparent Yb:YAG laser ceramics have been successfully fabricated by a vacuum reactive sintering method. Commercial Al₂O₃ powder and co-precipitated Y₂O₃ and Yb₂O₃ powders were used as the raw materials. In-line transmittances at 1300 nm and 400 nm were measured to be 83.6%and 81.8%respectively for a 3 mm thick mirror polished Yb:YAG ceramics sample. Continuous wave (CW) lasing at the wavelength of 1030 nm was achieved when pumped by a 940 nm fiber coupled laser diode. A slope efficiency as high as 62.7%was obtained.