Fabrication and optical properties of high-performance polycrystalline Nd:YAG ceramics for solid-state lasers

Journal Article · Sat Apr 01 00:00:00 EST 1995 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1995.tb08433.x· OSTI ID:82598

Ikesue, Akio; Kinoshita, Toshiyuki ^[1]; Kamata, Kiichiro ^[2]; Yoshida, Kunio ^[3]

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1. Krosaki Corp., Kitakyushu City (Japan). Technical Research Center
2. Nagaoka Univ. of Technology, Nagaoka City (Japan). Dept. of Material Science and Technology
3. Osaka Inst. of Technology, Osaka City (Japan). Inst. of Laser Engineering

Transparent polycrystalline YAG with nearly the same optical characteristics as those of a single crystal were fabricated by a solid-state reaction method using high-purity powders (>99.99 wt% purity). The average grain size and relative density of the 1.1 at.% ND:YAG ceramics obtained were about 50 {micro}m and 99.98%, respectively. An oscillation experiment was performed on a cw laser by the diode laser excitation system using the fabricated ceramics. The experimental results indicated an oscillation threshold and a slope efficiency of 309 mW and 28%, respectively. These values were equivalent or superior to those of the 0.9 at.% ND:YAG single crystal fabricated by the Czochralski method.

• Sponsoring Organization: USDOE
• OSTI ID: 82598
• Journal Information: Journal of the American Ceramic Society, Vol. 78, Issue 4; Other Information: PBD: Apr 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
ALUMINIUM OXIDES
FABRICATION
OPTICAL PROPERTIES
YTTRIUM OXIDES
NEODYMIUM OXIDES
NEODYMIUM LASERS
MATERIALS
POWDERS
SINTERING
TRANSMISSION ELECTRON MICROSCOPY
SCANNING ELECTRON MICROSCOPY
X-RAY DIFFRACTION
OPTICAL MICROSCOPY
ABSORPTION SPECTROSCOPY
FLUORESCENCE SPECTROSCOPY