Title :
Quantum efficiency of a broadband near-infrared emission from Ni2+-doped Li2O-Ga2O3-SiO2 transparent glass-ceramics
Author :
Ohishi, Yasutake ; Suzuki, Takenobu ; Murugan, G.Senthil
Author_Institution :
Toyota Technol. Inst., Nagoya, Japan
Abstract :
We have reported the optical properties of Ni2+-doped Li2O-Ga2O3-SiO2 transparent glass-ceramics system and the improvement of quantum efficiency makes Ni2+-doped glass-ceramics applicable to optical amplifiers and lasers. Transparent glass-ceramics with LiGa5O8 nanocrystals are very attractive as a matrix for Ni2+, since the quantum efficiency of the near-infrared emission of Ni2+ doped in LiGa5O8 is almost 100% up to 350 K. We have obtained an efficient broadband emission in the 1.3 μm band from transparent glass-ceramics with Ni2+-doped LiGa5O8 nanocrystals at room temperature.
Keywords :
gallium compounds; glass ceramics; lithium compounds; nanostructured materials; nickel; optical communication equipment; optical glass; photoluminescence; silicon compounds; 1.3 micron; 293 to 298 K; 350 K; Li2O-Ga2O3-SiO2:Ni2+; LiGa5O8; Ni2+-doped transparent glass-ceramics; broadband near-infrared emission; glass ceramics optical property; lasers; nanocrystals; optical amplifiers; quantum efficiency; Broadband amplifiers; Crystalline materials; Crystallization; Glass; Nanocrystals; Optical materials; Optical scattering; Semiconductor optical amplifiers; Stimulated emission; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568067
