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:
Oct. 21, 2008
Filed:
May. 13, 2003
Applicants:
Young-beom Seo, Seoul, KR;
Jae-hong Lim, Seoul, KR;
Dae-weon Kim, Seongnam-shi, KR;
Inventors:
Assignee:
LG Cable Ltd., Seoul, KR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01); H01S 3/00 (2006.01); H04B 10/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to an optical fiber for an optical amplifier and a method for manufacturing the same, which can be applied to an optical transmission system in the S-band area (4130 nm-1530 nm). According to the present invention, silica is used as a base material and the optical fiber for an optical amplifier contains Tm3+ ions and metal ions in a first core layer formed on an inner surface of a second core layer using the MCVD (Modified Chemical Vapor Deposition) method and a solution doping method whereby the practicability and productivity of the optical fiber are remarkably improved.