The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2021
Filed:
May. 19, 2018
Applicant:
Korea Photonics Technology Institute, Gwangju, KR;
Inventors:
Ju Hyeon Choi, Gwangju, KR;
Jung Whan In, Daejeon, KR;
Yeon Hwang, Gwangju, KR;
Young Bok Kim, Gyeongsangnam-do, KR;
Assignee:
KOREA PHOTONICS TECHNOLOGY INSTITUTE, Gwangju, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/247 (2006.01); C03C 4/12 (2006.01); C03C 13/04 (2006.01);
U.S. Cl.
CPC ...
C03C 3/247 (2013.01); C03C 4/12 (2013.01); C03C 13/048 (2013.01); C03C 2201/14 (2013.01); C03C 2201/3488 (2013.01); C03C 2201/36 (2013.01);
Abstract
The disclosed fluorophosphate glasses for an active device include: a metaphosphate composition including Al(PO); a fluoride composition including BaFand SrF; and a dopant composed of ErFand YbF, 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.