Premium
Laminar‐Structured YAG/Nd:YAG/YAG Transparent Ceramics for Solid‐State Lasers
Author(s) -
Li Jiang,
Wu Yusong,
Pan Yubai,
Liu Wenbin,
Huang Liping,
Guo Jingkun
Publication year - 2008
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02244.x
Subject(s) - materials science , ceramic , transparent ceramics , laser , microstructure , slope efficiency , lasing threshold , transmittance , grain boundary , grain size , optoelectronics , optics , composite material , fiber laser , wavelength , physics
A laminar‐structured YAG/1.0 at.% Nd:YAG/YAG transparent ceramic was fabricated by a solid‐state reaction method and vacuum sintering using high‐purity α‐Al 2 O 3 , Y 2 O 3 , and Nd 2 O 3 as raw materials with tetraethoxysilane as a sintering aid. The microstructure, the optical property, and the laser performance of the ceramic composite prepared were investigated in this paper. It is found that the sample exhibits a pore‐free structure and the average grain size is about 15 μm. There is no secondary phase both at the grain boundary and at the grain matrix. The optical transmittance of the sample (5.0 mm thick) is 80.2% at 1064 nm. The lasing sample is Φ16.2 mm × 5.0 mm in size, mirror polished on both sides and without a coating. A laser diode (808 nm) was used as a pump source with a maximum output of about 1000 mW, and the end‐pumped laser experiment was demonstrated. With 658 mW of maximum absorbed pump power, a laser output of 8 mW has been obtained with a slope efficiency of 4.0%.