公开(公告)号：US10941072B2

公开(公告)日：2021-03-09

申请号：US16465432

申请日：2018-05-19

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Ju Hyeon Choi ,  Jung Whan In ,  Yeon Hwang ,  Young Bok Kim

IPC: C03C3/247 ,  C03C4/12 ,  C03C13/04

Abstract: The disclosed fluorophosphate glasses for an active device include: a metaphosphate composition including Al(PO3)3; a fluoride composition including BaF2 and SrF2; and a dopant composed of ErF3 and YbF3, and have thermal and mechanical properties to be able to be used as a glass base material for an active device (e.g., optical fiber laser), have a high emission cross-section characteristic, have a reinforced upconversion and downconversion emission characteristic, and have high sensitivity S in a cryogenic environment.