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http://dx.doi.org/10.3807/HKH.2007.18.3.221

Opticsal Characteristics of Bismuth-doped Aluminosilicate Glass Codoped with Li and Ge  

Seo, Young-Seok (Korea Atomic Energy Research Institute)
Publication Information
Korean Journal of Optics and Photonics / v.18, no.3, 2007 , pp. 221-225 More about this Journal
Abstract
The possibility of improving amplification characteristics and lowering the melting point of bismuth-doped aluminosilicate glass as a new amplification material, which has broadband near-infrared emission at 1300 nm regions, was investigated. Spectroscopic analysis of bismuth-doped aluminosilicate glass shows that the addition of an alkali metal oxide, $Li_{2}O$ increases FWHM of fluorescence spectrum but decreases fluorescence intensity, while $GeO_{2}$ composition increases both FWHM of fluorescence spectrum and fluorescence intensity. Also, excellent optical amplification gain characteristics in a $GeO_{2}$-added sample were observed.
Keywords
Silica; Fiber material; Optical amplifiers;
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