Abstract
근적외선에서 발광하는 새로운 증폭 매질인 Bi 첨가 알루미노실리케이트 유리의 용융 온도를 낮추면서도 증폭 특성이 향상될 수 있도록 금속 산화물을 첨가한 샘플을 제작하여 분광학적 특성을 분석하였다. <TEX>$Li_{2}O$</TEX>의 조성비가 증가하면 형광스펙트럼의 반폭치는 증가하지만 형광 강도가 저하되고, <TEX>$GeO_{2}$</TEX>의 영향으로는 반폭치와 형광 강도가 동시에 증가하였다. <TEX>$GeO_{2}$</TEX>를 첨가한 시료에서 광 증폭 특성을 측정한 결과, 이전의 벌크 샘플에서 얻었던 것보다 우수한 증폭 특성을 가지고 있음을 확인하였다. 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, <TEX>$Li_{2}O$</TEX> increases FWHM of fluorescence spectrum but decreases fluorescence intensity, while <TEX>$GeO_{2}$</TEX> composition increases both FWHM of fluorescence spectrum and fluorescence intensity. Also, excellent optical amplification gain characteristics in a <TEX>$GeO_{2}$</TEX>-added sample were observed.
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