FLUOROPHOSPHATE-BASED GLASS FOR ACTIVE ELEMENT

Fluorophosphate-based glass for an active element, disclosed herein, comprises: a metaphosphate composition comprising about 20mol% to 60mol% of Mg(PO3)2; a fluoride composition comprising about 20mol% to 60mol% of BaF2 and about 0mol% to 40mol% of CaF2; and a dopant comprising a rare earth element. The fluorophosphate-based glass has the effect of prolonging the life of a carrier at an energy level in a metastable state of stimulated emission due to the phenomenon of effective energy transfer by way of the composition optimization of a doping substance (e.g., Er and Yb). Cette invention concerne un verre au fluorophosphate pour élément actif, comprenant : une composition de métaphosphate contenant d'environ 20 à 60 % en mol de Mg(PO3)2 ; une composition de fluorure contenant d'environ 20 à 60 % en mol de BaF2 et d'environ 0 à 40 % en mol de CaF2 ; et un dopant comprenant un élément de terre rare. Le verre au fluorophosphate a pour effet de prolonger la durée de vie d'un porteur à un niveau d'énergie à l'état métastable d'émission stimulée en raison du phénomène de transfert d'énergie efficace obtenu par optimisation de composition d'une substance dopante (p. ex., Er et Yb). 개시되는 능동소자용 불소인산염계 유리는, 약 20mol% 내지 약 60mol%의 Mg(PO3)2 포함하는 메타인산염(metaphosphate) 조성물; 약 20mol% 내지 약 60mol%의 BaF2 및 약 0mol% 내지 약 40mol%의 CaF2를 포함하는 불소(fluoride) 조성물; 및 희토류(rare earth) 원소를 포함하는 도펀트(dopant);로 구성되며, 도핑물질(예: Er, Yb)의 조성 최적화에 의해 유효한 에너지 전달(energy transfer) 현상으로 인해 유도방출(stimulated emission) 되는 준 안정상태(metastable state) 에너지 준위에서의 캐리어 수명이 연장되는 효과를 가진다.