Ni 2+ -doped new silicate glass-ceramics for superbroadband optical amplification

Transparent Ni2+-doped new La2O3-Ga2O3-Al2O3-SiO2 (LGAS) glass-ceramics (GC) embedding β-Ga2O3 nanocrystals was prepared. Upon excitation at 970 nm, an emission band at around 1200 nm was observed originating from the 3T2(3F)→3A2(3F) transition of Ni2+ in distorted octahedral sites. Effects of both heat-treated temperature and doping content on the luminescent properties were also studied. The results revealed that a concentration quenching of the luminescence occurs as the molar ratio of Ni2+ exceeds the optimum value. The superbroadband near-infrared (NIR) emission from Ni2+-doped new GC can be as host materials for a broadband optical amplifier.

[1]  J. Qiu,et al.  Broadband near-infrared emission from transparent Ni2+-doped silicate glass ceramics , 2007 .

[2]  J. Qiu,et al.  Broadband optical amplification in silicate glass-ceramic containing beta-Ga(2)O(3):Ni(2)+ nanocrystals. , 2007, Optics express.

[3]  M. Peng,et al.  Transparent Ni2+-doped ZnO–Al2O3–SiO2 system glass-ceramics with broadband infrared luminescence , 2007 .

[4]  Takenobu Suzuki,et al.  Structural and optical properties of ZnO–Al2O3–SiO2 system glass–ceramics containing Ni2+-doped nanocrystals , 2005 .

[5]  G. S. Murugan,et al.  Optical properties of transparent Li2O–Ga2O3–SiO2 glass-ceramics embedding Ni-doped nanocrystals , 2005 .

[6]  Takenobu Suzuki,et al.  Broadband 1400 nm emission from Ni2+ in zinc—alumino—silicate glass , 2004 .

[7]  Animesh Jha,et al.  Enhanced room-temperature emission in Cr4+ ions containing alumino-silicate glasses , 2003 .

[8]  Peter Reiche,et al.  Czochralski grown Ga2O3 crystals , 2000 .

[9]  Setsuhisa Tanabe,et al.  Temperature variation of near-infrared emission from Cr4+ in aluminate glass for broadband telecommunication , 2000 .

[10]  M. Yamada,et al.  Gain-flattened Er/sup 3+/-doped fiber amplifier for a WDM signal in the 1.57-1.60-μm wavelength region , 1997, IEEE Photonics Technology Letters.

[11]  G. Calas,et al.  Structural environment of nickel in silicate glass/melt systems: Part 1. Spectroscopic determination of coordination states , 1993 .

[12]  J. P. Remeika,et al.  The optical spectroscopy of LiGa5O8: Ni2+ , 1986 .

[13]  Y. Tanabe,et al.  On the Absorption Spectra of Complex Ions II , 1954 .